Pfaff
Andreas Pfaff, Zuerich CH
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20120312148 | DEVICE AND METHOD FOR AIRTIGHT COVERING OF A TRACER OR THE LIKE - A part of a cover is pressed radially into a circumferential groove contour in a projectile body by a preferably rigid die, which need only be moved axially and which is provided with a special outer contour. An outer contour should be matched to the groove contour or vice versa, so that the material of the cover that is formed radially by the forward-moving die can be pressed into the groove contour of the projectile body, and the cover no longer has any degrees of freedom after the forming, so that it is secured with respect to the tracer or the like. The cover is preferably a cover ring. | 12-13-2012 |
Annalise R. Pfaff, Rolla, MO US
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20160109390 | In Situ NMR Parameter Monitoring Systems and Methods for Measuring PH and Temperature - Devices and methods are provided for measuring temperatures and pHs of a sample in situ using NMR spectroscopy, and for sealing one or more ends of a capillary tube after a reference material has been added to the capillary tube, which is used in an in situ NMR temperature measurement device. A method for measuring a pH of a sample in situ using NMR spectroscopy includes providing an in situ NMR pH measurement device. This device includes a sample housing member configured to house a target sample, at least one pH sensor configured to exhibit an NMR spectral change due to a change in pH value of the target sample, and a pH sensor containment member configured to house the at least one pH sensor. The target sample is added to the sample housing member. NMR spectra are obtained to then determine the pH of the target sample. | 04-21-2016 |
Benjamin L. Pfaff, Redwood City, CA US
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20130058208 | FAULT TOLERANT MANAGED SWITCHING ELEMENT ARCHITECTURE - In a hierarchical switching architecture that includes at least one lower level managed switching element that connects to several higher level managed switching elements, some embodiments provide a method of identifying a higher level managed switching element to which the lower level managed switching element forwards a packet for further processing. The method computes a distribution metric based on a set of attributes of the packet. The method performs a lookup on a hierarchy traversal table that specifies (1) a set of primary higher level managed switching elements and (2) a set of secondary higher level managed switching element. The lookup is for determining a higher level managed switching element specified in the hierarchical traversal table to forward the packet for further processing. The method forwards the packet to the determined higher level managed switching element. | 03-07-2013 |
20130058255 | MANAGED SWITCH ARCHITECTURES: SOFTWARE MANAGED SWITCHES, HARDWARE MANAGED SWITCHES, AND HETEROGENEOUS MANAGED SWITCHES - Some embodiments provide a system that includes a set of network controllers for receiving definitions of first and second logical switching elements. The system includes several managed switching elements. The set of network controllers configure the several managed switching elements to implement the defined first and second logical switching elements. The system includes several network hosts that are each (1) communicatively coupled to one of the several managed switching elements and (2) associated with one of the first and second logical switching elements. Network data communicated between network hosts associated with the first logical switching element are isolated from network data communicated between network hosts associated with the second logical switching element. | 03-07-2013 |
20150100560 | Network Controller for Managing Software and Hardware Forwarding Elements - Some embodiments provide a set of one or more network controllers that communicates with a wide range of devices, ranging from switches to appliances such as firewalls, load balancers, etc. The set of network controllers communicates with such devices to connect them to its managed virtual networks. The set of network controllers can define each virtual network through software switches and/or software appliances. To extend the control beyond software network elements, some embodiments implement a database server on each dedicated hardware. The set of network controllers accesses the database server to send management data. The hardware then translates the management data to connect to a managed virtual network. | 04-09-2015 |
20150100675 | Database Protocol for Exchanging Forwarding State with Hardware Switches - Some embodiments provide a set of one or more network controllers that communicates with a wide range of devices, ranging from switches to appliances such as firewalls, load balancers, etc. The set of network controllers communicates with such devices to connect them to its managed virtual networks. The set of network controllers can define each virtual network through software switches and/or software appliances. To extend the control beyond software network elements, some embodiments implement a database server on each dedicated hardware. The set of network controllers accesses the database server to send management data. The hardware then translates the management data to connect to a managed virtual network. | 04-09-2015 |
20150100704 | Managing Software and Hardware Forwarding Elements to Define Virtual Networks - Some embodiments provide a set of one or more network controllers that communicates with a wide range of devices, ranging from switches to appliances such as firewalls, load balancers, etc. The set of network controllers communicates with such devices to connect them to its managed virtual networks. The set of network controllers can define each virtual network through software switches and/or software appliances. To extend the control beyond software network elements, some embodiments implement a database server on each dedicated hardware. The set of network controllers accesses the database server to send management data. The hardware then translates the management data to connect to a managed virtual network. | 04-09-2015 |
20150180801 | Method and Apparatus for Implementing and Managing Virtual Switches - In general, the present invention relates to a virtual platform in which one or more distributed virtual switches can be created for use in virtual networking. According to some aspects, the distributed virtual switch according to the invention provides the ability for virtual and physical machines to more readily, securely, and efficiently communicate with each other even if they are not located on the same physical host and/or in the same subnet or VLAN. According other aspects, the distributed virtual switches of the invention can support integration with traditional IP networks and support sophisticated IP technologies including NAT functionality, stateful firewalling, and notifying the IP network of workload migration. According to further aspects, the virtual platform of the invention creates one or more distributed virtual switches which may be allocated to a tenant, application, or other entity requiring isolation and/or independent configuration state. According to still further aspects, the virtual platform of the invention manages and/or uses VLAN or tunnels (e.g, GRE) to create a distributed virtual switch for a network while working with existing switches and routers in the network. The present invention finds utility in both enterprise networks, datacenters and other facilities. | 06-25-2015 |
20150281098 | Flow Cache Hierarchy - Some embodiments provide a managed forwarding element (MFE that includes a set of flow tables including a first set of flow entries for processing packets received by the MFE. The MFE includes an aggregate cache including a second set of flow entries for processing packets received by the MFE. Each of the flow entries of the second set is for processing packets of multiple data flows. At least a subset of packet header fields of the packets of the multiple data flows have a same set of packet header field values, and a same set of operations is applied to said packets. The MFE includes an exact-match cache including a third set of flow entries for processing packets received by the MFE. Each of the flow entries of the third set is for processing packets for a single data flow having a unique set of packet header field values. | 10-01-2015 |
Benjamin Levy Pfaff, Redwood City, CA US
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20090138577 | Network operating system for managing and securing networks - Systems and methods for managing a network are described. A view of current state of the network is maintained where the current state of the network characterizes network topology and network constituents, including network entities and network elements residing in or on the network. Events are announced that correspond to changes in the state of the network and one or more network elements can be configured accordingly. Methods for managing network traffic are described that ensure forwarding and other actions taken by network elements implement globally declared network policy and refer to high-level names, independently of network topology and the location of network constituents. Methods for discovering network constituents are described, whereby are automatically configured. Routing may be performed using ACL and packets can be intercepted to permit host to continue in sleep mode. The methods are applicable to virtual environments. | 05-28-2009 |
Daniel A. Pfaff, Burlingame, CA US
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20150229065 | DISCONNECT SPLICE BLOCK AND MODULAR SURGE DEVICE - An electrical coupling device, such as a surge protector for a rail or other conductive structure, includes a pair of terminals, and a jumper for selectively electrically coupling and decoupling the terminals. Movement of the jumper may expose part of the jumper or one or both of the terminals, such as for use as a test point. A surge module with one or more surge protection features may fit into a base that includes the terminal and the jumper. The module may have an interface feature, such as a protruding post, that prevents engagement with the base if the base is not properly engaged with the rail or other structure. | 08-13-2015 |
Dirk Pfaff, Ottawa CA
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20090102525 | Voltage controlled oscillator (VCO) with a wide tuning range and substantially constant voltage swing over the tuning range - A wide tuning range and constant swing VCO is described that is based on a multipass Ring Oscillator enhanced with feed-backward connections. This VCO is designed to overcome tuning range limitations of prior-art “feed-forward” ring oscillators. The Feedback multipass Ring Oscillator of the invention provides decreasing frequency when tuned by increasing the feedback, thus covering a much wider tuning range irrespective of the speed limit of the technology while at the same time providing almost constant amplitude. | 04-23-2009 |
20090103675 | Linear phase interpolator and phase detector - A novel interpolating phase detector for use in a multiphase PLL is described comprising an array of individual phase comparators, all operating at essentially the same operating point which permits the circuits to be designed simultaneously for high speed and for low power consumption. Two adjacent phase outputs of a multi-phase VCO may be selected and interpolated in between, by selectively attaching a variable number of phase comparators to each phase output and summing their phase error outputs. By varying the number of phase comparators attached to each phase output, interpolation can be achieved with high linearity. | 04-23-2009 |
20090115472 | MULTIPLE REFERENCE PHASE LOCKED LOOP - A multi reference phase locked loop (MPLL) generates a high speed clock frequency and phase locks it to a lowest common reference frequency derived from a selected one of at least two reference clocks. One of the reference clocks is a system reference clock in a FBDIMM system, another may be a forwarded clock in an AMB | 05-07-2009 |
20140145771 | DELAY LOCKED LOOP - A circuit includes a delay line and a delay locked loop. The circuit is configured to receive a delay parameter and a clock signal. The delay locked loop is configured to generate a pair of control codes based on a frequency of the clock signal and a frequency of an oscillator of the delay locked loop. The delay locked loop is configured to determine a difference between the frequency of the clock signal and the frequency of the oscillator based on a phase of an output of the oscillator and a phase of the clock signal after the output of the oscillator and the clock signal are aligned. The delay line is configured to receive an input signal and generate an output signal delayed from the input signal by a time delay that corresponds to a delay line control code calculated from the pair of control codes and the delay parameter. | 05-29-2014 |
Donald Pfaff, New York, NY US
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20100121407 | NEUROMODULATION HAVING NON-LINEAR DYNAMICS - Methods of neuromodulation in a live mammalian subject, such as a human patient. The method comprises applying electromagnetic energy to a target site in the nervous system of the subject using a signal comprising a series of pulses, wherein the inter-pulse intervals are varied using the output of a deterministic, non-linear, dynamical system comprising one or more system control parameters. In certain embodiments, the target site may be a site in the brain involved in generalized CNS (central nervous system) arousal. The dynamical system may be capable of exhibiting chaotic behavior. Also provided are apparatuses for neuromodulation and software for operating such apparatuses. | 05-13-2010 |
20110213439 | Neuromodulation Having Non-Linear Dynamics - Methods of neuromodulation in a live mammalian subject, such as a human patient. The method comprises applying electromagnetic energy to a target site in the nervous system of the subject using a signal comprising a series of pulses, wherein the inter-pulse intervals are varied using the output of a deterministic, non-linear, dynamical system comprising one or more system control parameters. In certain embodiments, the target site may be a site in the brain involved in generalized CNS (central nervous system) arousal. The dynamical system may be capable of exhibiting chaotic behavior. Also provided are apparatuses for neuromodulation and software for operating such apparatuses. | 09-01-2011 |
Gunter Pfaff, Port Hueneme, CA US
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20120241436 | APPARATUS FOR CULTURING PLANT MATERIALS AS FOOD PRODUCT - The invention is directed to an apparatus adapted to prepare a cultured food product, such as but not limited to tempeh, from a plant material. The apparatus comprises a housing, a container and at least one heating element. The container holds the plant material, such as a soyfood substrate, and is incubated in the housing whereby the cultured food product, such as a tempeh, is formed. The housing further comprises a controlled airflow wherein the housing is adapted to allow ambient air to flow into and out of the housing during the culturing process. | 09-27-2012 |
20140216275 | APPARATUS FOR CULTURING PLANT MATERIALS AS FOOD PRODUCT - The invention is directed to an apparatus adapted to prepare a cultured food product, such as but not limited to tempeh, from a plant material. The apparatus comprises a housing, a container and at least one heating element. The container holds the plant material, such as a soyfood substrate, and is incubated in the housing whereby the cultured food product, such as a tempeh, is formed. The housing further comprises a controlled airflow wherein the housing is adapted to allow ambient air to flow into and out of the housing during the culturing process. | 08-07-2014 |
John Pfaff, Bradenton, FL US
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20120295019 | COMPLETE TOOLING PACKAGES FOR MOLD BUILDING STRUCTURES - Tooling packages for mold building structures, mold structures, and methods of making mold structures are described. | 11-22-2012 |
Kimberly L. Pfaff, Littleton, CO US
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20130159836 | ANONYMOUS REPORTING SYSTEM - An anonymous reporting system for use in reporting and following up on incidents, accidents, and the like. The system may be accessed via an Internet website. A reporting individual may select a type of incident to report. In one example, the reporting individual may select a level on anonymity and some, none or all of the individual's personal identification is displayed to the organization according to the selected level. | 06-20-2013 |
Mark S. Pfaff, Indianapolis, IN US
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20150339415 | SYSTEM AND METHOD FOR CREATING A SIMULATION MODEL VIA CROWDSOURCING - The disclosed systems and methods transform descriptive causal models into digital computer simulation models based on information obtained from crowdsourcing. This may include interviewing experts to collect descriptive information that is used to assemble causal descriptive models, which can be represented as graphs of nodes connected by edges. Node values may represent concepts and edge weights represent their causal relationships. Crowdsourcing is used to collect feedback about the causal descriptive models. The feedback is used to calculate edge weights that are incorporated into causal simulation models for use during model processing runs. A digital computer simulation is completed when node values reach steady states after model processing runs. A computer visualization tool can then be used to analyze outcome spaces produced by digital computer simulations. For example, digital computer simulations can generate decision spaces that are used to determine preferable courses of action in different situations. | 11-26-2015 |
Martin Pfaff, Howell, NJ US
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20150247923 | Advanced Techniques for Ground-Penetrating Radar Systems - A Ground Penetrating Radar (GPR) system makes use of digital circuitry for synchronizing the sampling of a received radar signal with a transmitted radar signal. The digital synchronization achieves improved waveform reproduction and greater receiver sensitivity. Furthermore, the system employs digital circuitry to control the gain of a receiver amplifier. The digitally controlled gain makes it possible to accurately calibrate the amplitude of received radar signals with great precision while achieving good dynamic range. | 09-03-2015 |
Nathan Pfaff, Goleta, CA US
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20130069088 | LIGHT EMITTING DIODE WITH CONFORMAL SURFACE ELECTRICAL CONTACTS WITH GLASS ENCAPSULATION - An optoelectronic device (e.g., LED) comprising one or more conformal surface electrical contacts conforming to surfaces of the device; and a high refractive index glass partially or totally encapsulating the device and the conformal surface electrical contacts, wherein traditional wire bonds and/or bond pads are not used and the glass is a primary encapsulant for the device. | 03-21-2013 |
Nathan A. Pfaff, Santa Barbara, CA US
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20140126200 | WHITE LIGHT SOURCE EMPLOYING A III-NITRIDE BASED LASER DIODE PUMPING A PHOSPHOR - A white light source employing a III-nitride based laser diode pumping one or more phosphors. The III-nitride laser diode emits light in a first wavelength range that is down-converted to light in a second wavelength range by the phosphors, wherein the light in the first wavelength range is combined with the light in the second wavelength range to create highly directional white light. The light in the first wavelength range comprises ultraviolet, violet, blue and/or green light, while the light in the second wavelength range comprises green, yellow and/or red light. | 05-08-2014 |
Paul Pfaff, Lake Oswego, OR US
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20080252898 | METHOD FOR OPTICALLY TESTING SEMICONDUCTOR DEVICES - A method for optically testing semiconductor devices or wafers using a holographic optical interference system with light source providing a light beam of coherent wavelength with a wavelength to which the semiconductor material is transparent, splitting the light beam into a reference beam and an object beam, imposing the object beam on the semiconductor material to generate a reflected object beam reflected from interior structures of the semiconductor material, adjusting the angle of the reference beam relative to the object beam between a plurality of angles with the semiconductor material being a different state for each angle of the reference beam, imposing the reflected object beam and the reference beam onto a detection device to create a plurality of interference patterns, one for each of the reference beam angles, and comparing the interference patterns to one another to determine and display characteristics within the semiconductor material. | 10-16-2008 |
20090002717 | CONDITION ASSESSMENT SYSTEM FOR A STRUCTURE INCLUDING A SEMICONDUCTOR MATERIAL - An improved condition testing system and method includes a structure including a semiconductor material with a target portion and a second portion. The target portion has a first feature when at least one of the following occurs: an external force is received by the second portion of the structure and an internal condition occurs in the target portion. The system and method further has a grating shaped and located to produce a first optical interference pattern when the target portion and the grating are exposed to non-invasive illumination and when the target portion has the first feature. Further implementations use a second grating spaced apart from the first grating. | 01-01-2009 |
Paul L. Pfaff, Lake Oswego, OR US
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20100091292 | HOLOGRAPHIC CONDITION ASSESSMENT SYSTEM FOR A STRUCTURE INCLUDING A SEMICONDUCTOR MATERIAL - An improved condition testing system and method integrated into microelectronic circuits includes a structure including a semiconductor material with a target portion and a second portion for determining the presence and nature of various external (e.g. magnetic field, microwave, bioelectric or incident radiation) or internal stresses (e.g. binary circuit-state or analog signal recognition) or conditions acting upon the material. The target portion has a first feature when at least one of the following occurs: an external force is received by the second portion of the structure and an internal condition occurs in the target portion. The system and method further has a test grating determined and shaped and located to produce a first optical interference pattern when the target portion and the grating are exposed to non-invasive illumination and when the target portion has the first feature. Further implementations use one or more diffraction structures, holograms, or holographic optical elements spaced apart from the circuit or electronic device under test to non-invasively optically test in parallel two or more targeted conditions having a shape, size, structure, intensity or orientation of the stress acting upon the material. | 04-15-2010 |
20110122415 | METHOD FOR OPTICALLY ENHANCED HOLOGRAHIC INTERFEROMETRIC TESTING FOR TEST AND EVALUATION OF SEMICONDUCTOR DEVICES AND MATERIALS - Improved methods and systems for inspection imaging for holographic or interferometric semiconductor test and evaluation through all phases of manufacture. Specifically, systems and methods for extending the range of optical holographic interferometric inspection for evaluating microelectronic devices and the interplay of electromagnetic signals and dynamic stresses to the semiconductor material are provided in which an enhanced imaging method provides continuous and varying magnification over a plurality of interleaved optical pathways and imaging devices. Analysis of one or more holographic interference patterns displays internal and external stresses and the various effects of such stresses upon the operating characteristics of features within the feature or interior structures or internal surfaces of the semiconductor material or wafer. | 05-26-2011 |
20120127473 | OPTICALLY ENHANCED HOLOGRAPHIC INTERFEROMETRIC TESTING METHODS FOR THE DEVELOPMENT AND EVALUATION OF SEMICONDUCTOR DEVICES, MATERIALS, WAFERS, AND FOR MONITORING ALL PHASES OF DEVELOPMENT AND MANUFACTURE - Improved methods and systems for inspection imaging for holographic or interferometric semiconductor test and evaluation through all phases of device development and manufacture. Specifically, systems and methods are disclosed for extending the range of optical holographic interferometric inspection for testing and evaluating microelectronic devices and determining the interplay of electromagnetic signals and dynamic stresses to the semiconductor material are provided in which an enhanced imaging method provides continuous and varying the magnification of the optical holographic interferometric images over a plurality of interleaved optical pathways and imaging devices. Analysis of one or more holographic interference patterns displays internal and external stresses and the various effects of such stresses upon the operating characteristics of features within the features, interior structures or within the internal surfaces of the semiconductor device at any stage of development or manufacture. | 05-24-2012 |
20120133922 | HOLOGRAPHIC CONDITION ASSESSMENT SYSTEM FOR A STRUCTURE INCLUDING A SEMICONDUCTOR MATERIAL - An improved optical infrared and ultraviolet imaging and testing system including a primary imaging device with a target portion and a secondary imaging device for determining the presence and nature of various external (e.g. magnetic field, microwave, bioelectric or incident infrared, thermal, ultraviolet, radiation, or x-rays) or internal stresses (e.g., photo-generated carriers or photo-induced resistance) or other conditions acting upon the primary detection device which are optically enhanced for detection by the secondary detection device or devices. | 05-31-2012 |
20130181722 | METHODS AND PROCESSES FOR OPTICAL INTERFEROMETRIC OR HOLOGRAPHIC TEST IN THE DEVELOPMENT, EVALUATION, AND MANUFACTURE OF SEMICONDUCTOR AND FREE-METAL DEVICES UTILIZING ANISOTROPIC AND ISOTROPIC MATERIALS - Analysis and characterization of semiconductor and free-metal devices using a plurality of “live” and stored interference patterns or data detected to determine or generate two-dimensional or three-dimensional information of at least one internal stress or signal, or determining the effects thereof of internal or external stresses acting upon or within the electrical signals applied to a device under test or evaluation having exterior surfaces, interior structures, electronic features as well as determining the effects thereof of chemicals, bioelectric materials, or substances, placed adjacent to the surface of the devices under test. | 07-18-2013 |
20130337585 | MULTIPLE OPTICAL WAVELENGTH INTERFEROMETRIC TESTING METHODS FOR THE DEVELOPMENT AND EVALUATION OF SUBWAVELENGTH SIZED FEATURES WITHIN SEMICONDUCTOR DEVICES AND MATERIALS, WAFERS, AND MONITORING ALL PHASES OF DEVELOPMENT AND MANUFACTURE - Methods and systems for resolving and determining sub-wavelength sized features and stresses by using infrared optical and thermal wavelength probing for holographic or interferometric evaluation and testing for all phases of semiconductor device development and manufacture. Specifically, systems and methods are disclosed for extending the range of optical holographic interferometric inspection for testing and evaluating microelectronic devices and determining the interplay of electromagnetic signals and dynamic stresses to the semiconductor material in which an enhanced imaging method provides continuous and varying magnification of the optical holographic interferometric images over a plurality of interleaved optical pathways of varying optical paths and imaging devices. Electronic analysis of holographic interference patterns of varying optical probing wavelengths determines and permits the display of internal and external stresses and the various effects of such stresses acting upon the operating characteristics of semiconductor devices, features, interior structures at any stage of development or manufacture. | 12-19-2013 |
20140103935 | OPTICAL TO OPTICAL TIME AND SPATIAL RESOLUTION ENHANCEMENTS FOR IMPROVING CHARACTERIZATION OF SECONDARY ELECTRON EMISSION AND CONTROL FOR ETCH-, ELECTRON-, AND ION-BEAM DEVICES - In decreasing the electron beam duration required for increased time resolution, the average beam current decreases, degrading measurement sensitivity and limiting practical systems to a time resolution of several hundred picoseconds. Optical non-invasive or non-destructive enhancements permits femto-second measurements and a new regime of internal device and process evaluation and quality control in integrated circuit (IC) manufacture, at every stage from the initial wafer to the point at which the wafer is diced into individual ICs. | 04-17-2014 |
20150041657 | MULTIPLE BEAM TRANSMISSION INTERFEROMETRIC TESTING METHODS FOR THE DEVELOPMENT AND EVALUATION OF SUBWAVELENGTH SIZED FEATURES WITHIN SEMICONDUCTOR AND ANISOTROPIC DEVICES - Improved methods and systems for inspection imaging for holographic or interferometric semiconductor test and evaluation through all phases of device development and manufacture. Specifically, systems and methods are disclosed for extending the range of optical holographic interferometric inspection for testing and evaluating microelectronic devices and determining the interplay of electromagnetic signals and dynamic stresses to the semiconductor material are provided in which an enhanced imaging method provides continuous and varying the magnification of the optical holographic interferometric images over a plurality of interleaved optical pathways and imaging devices. Analysis of one or more holographic interference patterns displays internal and external stresses and the various effects of such stresses upon the operating characteristics of features within the features, interior structures or within the internal surfaces of the semiconductor device at any stage of development or manufacture. | 02-12-2015 |
Peter T. Pfaff, Cheshire, CT US
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20130152833 | ADJUSTABLE DESK - An adjustable desk comprising: a desk top; a first outer sidewall attached to the desk top; a second outer sidewall attached to the desk top; a first inner sidewall in slideable communication with the first outer sidewall; a second inner sidewall in slideable communication with the second outer sidewall; a first plurality of pairs of holes on the first outer sidewall, where each of the first plurality of pairs of holes are at different heights from the bottom of the first outer sidewall; a second plurality of pairs of holes on the first inner sidewall, where each of the first plurality of pairs of holes are at different heights from the bottom of the first inner sidewall; a third plurality of pairs of holes on the second outer sidewall, where each of the third plurality of pairs of holes are at different heights from the bottom of the second outer sidewall; a fourth plurality of pairs of holes on the second inner sidewall, where each of the fourth plurality of pairs of holes are at different heights from the bottom of the second inner sidewall; where the height of the desk top can be fixed by aligning a pair of holes from the first plurality of pairs of holes, with a pair of holes from the second plurality of pairs of holes, and aligning a pair of holes form the third plurality of pairs of holes, with a pair of holes from the fourth plurality of pairs of holes, and fastening the aligned pair of holes with a fastener that will attach the first outer sidewall to the first inner sidewall such that they will not slide with respect to each other, and will attach the second outer sidewall to the second inner sidewall such that they will not slide with respect to each other; and where the height of the desktop can be adjusted by changing which pairs of holes from the first plurality of pairs of holes and the second plurality of pairs of holes are aligned and fastened with a fastener, and by changing which pairs of holes from the third plurality of pairs of holes and the fourth plurality of pairs of holes are aligned and fastened with a fastener. | 06-20-2013 |
Raimund Pfaff, Carter Lake, IA US
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20100072779 | Foldable cab extender for a tractor-trailer truck - Foldable cab extenders are disclosed which are secured to the rearward ends of fixed cab extenders secured to the opposite rearward sides of a tractor cab. Each of the foldable cab extenders includes a forward panel member, an intermediate panel member and a rearward panel member with the forward panel member being secured to the associated fixed cab extender and with the intermediate panel member and the forward panel member being hingedly secured together and with the rearward panel member being hingedly secured to the intermediate panel member. The cab assemblies are selectively movable between a deployed position to a stowed position and vice versa. Actuators are operatively connected to the intermediate panel members and to the rearward panel members to enable the assemblies to be pivotally moved between their stowed and deployed positions. The actuators may be hydraulic or pneumatic cylinders or electrically driven devices. | 03-25-2010 |
20120313348 | Aerodynamically-shaped fuel tank - An aerodynamically-shaped fuel tank is provided for a refrigeration unit mounted on the forward end of a truck body. The fuel tank includes a cylindrical main body portion having forward and rearward ends. An aerodynamically-shaped nose portion extends forwardly and upwardly from the forward end of the main body portion. An aerodynamically-shaped tail portion extends rearwardly and upwardly from the rearward end of the main body portion. | 12-13-2012 |
20130088040 | DRAG REDUCTION APPARATUS FOR A TRAILER - A drag reduction device secured to each of the top rails of a wheeled cargo van body or container which covers the recess formed in the outer side of the top rail. | 04-11-2013 |
20140054924 | AERODYNAMIC DRAG REDUCER FOR A TRAILER - An aerodynamic reducer for a trailer comprising one or more sheet members which are secured to the lower ends of at least some of the cross-members positioned beneath the floor of the trailer. The sheet members enclose the space between at least some of the cross-members. | 02-27-2014 |
Ryan Pfaff, Dubuque, IA US
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20130112354 | POWERED SAFETY CURTAINS - Powered safety curtains are disclosed. An example barrier for an opening includes a motorized drive unit, and a curtain. The example barrier also includes a track disposed along the lateral edge of the curtain, a guide plate carried by the curtain and extending into the track and a nonferrous guide member attached to the guide plate. The example barrier also includes a first safety device comprising a first wireless portion attached to the nonferrous guide member and a first electrical portion mounted relative to the track. The first electrical portion is in the first activated state when the first wireless portion is in proximity with the first electrical portion as a result of the leading edge of the curtain being at the closed position. The first wireless portion is in the first deactivated state when the first wireless portion is remote relative to the first electrical portion. | 05-09-2013 |
20130112358 | POWERED SAFETY CURTAINS - Powered safety curtains are disclosed herein. An example safety barrier assembly to control access to equipment includes a track and a barrier including a receptacle. The barrier is to be moveable within the track between an open position and a closed position. The open position is to enable access to the equipment, the closed position to substantially prevent access to the equipment. The example safety barrier assembly also includes a sensor to identify when the safety barrier is in the closed position and a securing device comprising a portion to be received by the receptacle when the barrier is identified as being in the closed position. An interaction between the portion and the receptacle is to prevent the barrier from moving out of the closed position. | 05-09-2013 |
20160108666 | Systems and Methods for Aligning Roll-Up Door Curtains - Example systems and methods for aligning roll-up door curtains are disclosed. An example door includes a roller that is rotatable about an axis. The door further includes a curtain having a wrapped section wrapped around the roller and an unwrapped section extending tangentially away from the wrapped section. The unwrapped section adjoins the wrapped section at a first point proximate a first end of the roller and at a second point proximate a second end of the roller. The axis is closer to the second point than to the first point when the curtain is at the intermediate position. In some examples, the door includes a guide member to guide the curtain on to the roller. | 04-21-2016 |
Shane W. Pfaff, Spring, TX US
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20130081824 | TUBING RETRIEVABLE INJECTION VALVE ASSEMBLY - A method and apparatus for controlling the flow of fluid in an injection well includes a main valve assembly having a valve and a retrievable nozzle selective lock assembly (RNSLA). The RNSLA is operable when positioned within the valve body to open the valve when fluid is pumped into the well and closes the valve when fluid flow is terminated. The RNSLA includes a replaceable orifice nozzle so that orifices of different dimensions may be used in conjunction with the valve assembly. In an alternate embodiment, the RNSLA includes a variable output nozzle assembly to maintain the valve in a protected open position without chattering over a wide range of flow rates. | 04-04-2013 |
20150204163 | Method and Apparatus for Inserting a Tubular String into a Well - A valve to act as a barrier to fluid movement in a tubular is provided. A flapper in the valve may be opened by application of a selected pressure differential across the flapper. The flapper opens to allow a cylinder to shift and cover the open flapper. A method of placing a tubular string within a well using the valve as an isolation valve to form gas filled chambers for floating the tubular string into the well is also disclosed. | 07-23-2015 |
Werner Pfaff, Muenchwilen CH
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20120095265 | CHEMICAL PROCESS FOR THE PRODUCTION OF HALOALKENONE ETHERS - The present invention relates to a continuous process for producing a haloalkenone ether of the Formula (I) wherein R | 04-19-2012 |