Pietrzak
Amy Pietrzak, Londonderry, NH US
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20120074256 | COMPRESSION SPRING WING DEPLOYMENT INITIATOR - A wing deploy initiator for deploying guidance wings of a rocket or missile, such as the APKWS, provides enhanced wing deploy performance with reduced complexity, cost, and likelihood of failure. The invention includes a cam which is driven between the stowed guidance wings by at least one compression spring, thereby forcing the guidance wings outward through slots in the fuselage of the rocket or missile. Oblique flat sides of the cam can push against beveled edges on the wings. The cam can be attached to spring mandrels, and the cam and mandrels can pass through a retaining plate as the springs decompress. Embodiments can exert sufficient push force to enable the wings to break through frangible slot covers. An embodiment applicable to the APKWS includes only 13 parts, and can exert up to 10 lb push force on each wing after 0.3 inches of wing travel. | 03-29-2012 |
20120119014 | TORSION SPRING WING DEPLOYMENT INITIATOR - A compact, purely mechanical wing deployment assisting mechanism uses torsion springs and lever arms to apply a deploying force to a guidance wing during its initial deployment through a wing slot in a rocket or missile, thereby assisting the wing to burst through a cover seal protecting the wing slot. The wings are then fully deployed by centrifugal force. Various embodiments include two “extreme duty” springs and two lever arms per wing, working in parallel. Embodiments provide a total of at least 24 pounds of force per wing at the end of a spring travel of 0.30 inches. In some embodiments, the entire mechanism weighs less than 0.5 pounds and/or occupies less than 2.5 cubic inches per wing. In embodiments, an assembled group, including two springs and two lever arms, is located between each pair of wings, whereby each assembled group applies one lever arm to each adjoining wing. | 05-17-2012 |
20140060370 | APPARATUS FOR DEPLOYING STOWED CONTROL SURFACES OF A PROJECTILE - An apparatus for deploying stowed control surfaces of a projectile is disclosed. The apparatus for deploying stowed control surfaces of a projectile includes a first and second hot gas generators, a first and second gas chambers, a piston wedge, a piston and a barrel. Initially, the first hot gas generator discharges a surge of hot gas into the first gas chamber. In response to the surge of hot gas being discharged into the first gas generator, the piston wedge displaces at least one of the control surfaces to break an environmental seal covering the projectile. After a predetermined amount of time has lapsed, the second hot gas generator discharges a surge of hot gas into the second gas chamber. The surge of hot gas displaces the piston and barrel for deploying the control surfaces completely. | 03-06-2014 |
20150276359 | APPARATUS FOR DEPLOYING STOWED CONTROL SURFACES OF A PROJECTILE - An apparatus for deploying stowed control surfaces of a projectile is disclosed. The apparatus for deploying stowed control surfaces of a projectile includes a first and second hot gas generators, a first and second gas chambers, a piston wedge, a piston and a barrel. Initially, the first hot gas generator discharges a surge of hot gas into the first gas chamber. In response to the surge of hot gas being discharged into the first gas generator, the piston wedge displaces at least one of the control surfaces to break an environmental seal covering the projectile. After a predetermined amount of time has lapsed, the second hot gas generator discharges a surge of hot gas into the second gas chamber. The surge of hot gas displaces the piston and barrel for deploying the control surfaces completely. | 10-01-2015 |
Arnd Pietrzak, Berlin DE
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20090151775 | System for Assisting Solar Power Generation - A system for assisting solar power generation contains several racks for fastening power conversion modules. The racks each have a pivot axis and are mounted for pivotal movement about the pivot axis. The racks each have a lever, a movement of the lever causing a respective one of the racks to pivot. A coupling rod is provided on which the levers are each carried for rotation. The coupling rod couple the levers of the racks together and are further coupled to a linear drive unit so that the racks may be caused to pivot together through an action of the linear drive unit. A common mounting configuration mounts the racks so as to have the pivot axis carried on the common mounting configuration. The linear drive unit has a first end hinge-linked to the common mounting configuration and a second end hinge-linked to the coupling rod. | 06-18-2009 |
20150311854 | System For Mounting And Supporting Photovoltaic Modules - A system for mounting and supporting photovoltaic (PV) modules includes a frame rail that is formed with a longitudinally extending channel for retaining a plurality of mounting clips, and mounting clamps for anchoring the frame rail to a support base or support structure. Each mounting clamp includes a pair of jaws for engaging along a base portion of the fame rail. The mounting clips are arranged along the length of the frame rail, and are used to support the PV modules adjacent to the frame rails. Module clamps are used to hold the PV modules in place, the module clamps being secured to the mounting clips using elongated fasteners having an engaging end for engaging the mounting clip. The mounting clamps allow the frame rail position to be adjusted in two directions, and the mounting clips facilitate rapid mounting of the PV modules to the frame rail structure. | 10-29-2015 |
Bradley W. Pietrzak, Warsaw, IN US
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20160032856 | METHOD AND APPARATUS FOR DYNAMIC SURFACE CONTROL OF A PIEZOELECTRIC FUEL INJECTOR DURING RATE SHAPING - A system and method are provided for monitoring a pressure of fuel supplied to the fuel injector, and providing a control input voltage to the piezostack in response to the pressure to cause the injector to provide a fuel injection having a desired shape. In the system and method, providing a control input voltage includes applying a model-based algorithm to the pressure to determine the control input voltage. | 02-04-2016 |
Chris Pietrzak, Van Nuys, CA US
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20130067645 | ADJUSTABLE SPORTS HELMET - A protective sports helmet includes features that promote efficient fit adjustment and efficient donning and removal of the helmet. The helmet optionally includes a front shell portion pivotably connected to a rear shell portion to promote easy donning and removal of the helmet. Further, the upper region of the front shell optionally is longitudinally adjustable relative to the upper region of the rear shell. Cam mechanisms optionally are provided on the helmet shell for securing straps of a chin cup at desired lengths. The cam mechanisms optionally each include a self-energizing grip member that increasingly engages the strap when the strap is pulled taut while the cam mechanism is in the locked position. A face guard optionally is attached within the helmet shell structure, or within padding inside the shell, which provides a smooth helmet exterior and promotes distributed energy transfer from the face guard to the helmet shell. | 03-21-2013 |
Chris T. Pietrzak, Scotts Valley, CA US
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20130263363 | PROTECTIVE BICYCLE HELMET WITH INTERNAL VENTILATION SYSTEM - A bicycle helmet for protecting the head of a wearer includes an outer shell and an energy dissipating inner layer coupled to the outer shell. The inner layer defines an inner surface, and front attachment locations are inwardly offset from the inner surface substantially at a frontal portion of the helmet. Rear attachment locations are inwardly offset from the inner surface substantially at a rear portion of the helmet. An internal ventilation system is supported by the front attachment locations and the rear attachment locations. The internal ventilation system is configured for direct engagement with the head of the wearer for supporting the helmet upon the head of the wearer. The internal ventilation system provides a gap between the head of the wearer and the inner surface. The gap allows ventilating air to flow over a substantial extent of the wearer's head and within the helmet. | 10-10-2013 |
Christopher T. Pietrzak, Park City, UT US
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20100170547 | TREKKING POLE CLAMP AND METHODS - A clamp apparatus that includes a base portion and an adjustable clamping lever. The base portion defines an adjustable size aperture. The adjustable clamping lever is mounted to the base portion and is movable between an unlatched position and a latched position. The adjustable clamping lever has a length that is adjustable to clamp the base portion to elongate members having a cross-section. The adjustable clamping lever may include at least two link members. One of the link members may have an adjustable length. | 07-08-2010 |
20110303255 | TENT POLE CONNECTION SYSTEM AND METHODS - A tent pole assembly that includes first and second pole sections, first and second inserts, and a projection member. Each of the pole sections includes an open end. The first and second inserts are positionable into the open ends of the first and second pole sections, respectively. The projection member is insertable into the first and second inserts to releasably connect the first and second pole sections together. | 12-15-2011 |
20120012141 | SHOCK ABSORBING SYSTEM FOR TREKKING POLES - A trekking pole assembly includes a trekking pole and a handle assembly mounted to the trekking pole. The handle assembly includes a handle housing with an interior cavity and a shock absorbing member secured within the interior cavity. The handle housing has a top end and a bottom end, an opening defined in the bottom end, and at least one lateral opening. The shock absorbing member is positioned in the handle housing and interposed between the handle housing and the trekking pole. A portion of the shock absorbing member is displaceable through the at least one lateral opening. | 01-19-2012 |
Christopher T. Pietrzak, Ben Lomond, CA US
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20140201889 | SYSTEM AND METHOD FOR CUSTOM FORMING A PROTECTIVE HELMET FOR A CUSTOMER'S HEAD - A custom-fitted helmet and a method of making the same can comprise, at a first location, obtaining head data for a customer's head comprising a length, a width, and at least one head contour. With at least one processor, generating a computerized three-dimensional (3D) headform matching the customer's head length, width, and head contour from the head data. The 3D headform can be compared to a helmet safety standard. At a second location different from the first location, a custom-fitted helmet based on the 3D headform can be formed, wherein the custom-fitted helmet satisfies the safety standard and comprises an inner surface comprising a topography that conforms to the length, width, and at least one contour of the customer's head. The first location can be a home or a store. Obtaining the head data from photographic images of a deformable interface member disposed on the customer's head. | 07-24-2014 |
Christopher T. Pietrzak, Scotts Valley, CA US
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20140189937 | HELMET WITH INTEGRATED ELECTRONIC COMPONENTS - A helmet that can comprise a helmet body comprising an energy absorption layer and an outer shell. A first opening can be formed through the outer shell and extend into the energy absorbing layer, the first opening comprising a perimeter. A first sleeve can be disposed at least partially within the first opening, the first sleeve comprising a first end comprising a first flange coupled to the outer shell and extending beyond the perimeter of the first opening, and a second end opposite the first end comprising a base disposed over the energy absorption layer. A camera can be coupled to the first sleeve and exposed through the first opening. The helmet can further comprise the first sleeve comprising a depth greater than a width or a length. The first flange can be directly coupled to an outer surface or an inner of the outer shell. | 07-10-2014 |
Jean-Paul Pietrzak, Blenod Les Pont A Mousson FR
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20090080972 | DEVICE FOR CLOSING AN OPENING, PARTICULARLY A STREET MANHOLE - The invention relates to a device for closing an opening, particularly a man hole. The inventive device comprises a frame ( | 03-26-2009 |
Krzysztof Pietrzak, Flagstaff, AZ US
Patent application number | Description | Published |
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20120231043 | IMMOBILISED BIOLOGICAL ENTITIES - There is described inter alia a device having a surface comprising a layered coating wherein the outer coating layer comprises a plurality of cationic hyperbranched polymer molecules characterized by having (i) a core moiety of molecular weight 14-1,000 Da (ii) a total molecular weight of 1,500 to 1,000,000 Da (iii) a ratio of total molecular weight to core moiety molecular weight of at least 80:1 and (iv) functional end groups, whereby one or more of said functional end groups have an anti-coagulant entity covalently attached thereto. | 09-13-2012 |
20140221522 | COATING FOR SUBSTRATE - There is provided inter alia a substrate with a surface having a hydrophilic coating comprising a cross-linked copolymer of components A and B, and optional components C and D; wherein | 08-07-2014 |
20150367040 | IMMOBILISED BIOLOGICAL ENTITIES - There is described inter alia a device having a surface comprising a layered coating wherein the outer coating layer comprises a plurality of cationic hyperbranched polymer molecules characterized by having (i) a core moiety of molecular weight 14-1,000 Da (ii) a total molecular weight of 1,500 to 1,000,000 Da (iii) a ratio of total molecular weight to core moiety molecular weight of at least 80:1 and (iv) functional end groups, whereby one or more of said functional end groups have an anti-coagulant entity covalently attached thereto. | 12-24-2015 |
Krzysztof R. Pietrzak, Flagstaff, AZ US
Patent application number | Description | Published |
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20080279909 | Immobilized Biologically Active Entities Having A High Degree of Biological Activity Following Sterilization - The present invention relates to immobilized biologically active entities that retain significant biological activity following sterilization of the immobilized biologically active entities. | 11-13-2008 |
20100272775 | IMMOBILIZED BIOLOGICALLY ACTIVE ENTITIES HAVING A HIGH DEGREE OF BIOLOGICAL ACTIVITY FOLLOWING STERILIZATION - The present invention relates to immobilized biologically active entities that retain significant biological activity following sterilization of the immobilized biologically active entities. | 10-28-2010 |
20110293689 | IMMOBILIZED BIOLOGICALLY ACTIVE ENTITIES HAVING A HIGH DEGREE OF BIOLOGICAL ACTIVITY - The present invention relates to immobilized biologically active entities having heparin cofactor II binding activity. | 12-01-2011 |
20120207791 | IMMOBILIZED BIOLOGICALLY ACTIVE ENTITIES HAVING A HIGH DEGREE OF BIOLOGICAL ACTIVITY - The present invention relates to immobilized biologically active entities having heparin cofactor II binding activity. | 08-16-2012 |
20130035665 | Polymer-Based Occlusion Devices, Systems and Methods - A method of occluding includes imbibing a porous elongate element comprised of ePTFE with a calcium-containing solution. The method also includes delivering, via a delivery catheter, the calcium-imbibed porous elongate element to a target occlusion site. The method further includes administering, after the calcium-imbibed porous elongate element has been completely delivered to the target occlusion site and resides entirely within a volume defined by the target occlusion site, an alginate-containing solution to the target occlusion site. | 02-07-2013 |
20130150284 | IMMOBILIZED BIOLOGICALLY ACTIVE ENTITIES HAVING A HIGH DEGREE OF BIOLOGICAL ACTIVITY - The present invention relates to immobilized biologically active entities having heparin cofactor II binding activity. | 06-13-2013 |
Przemyslaw Pietrzak, Police PL
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20100269954 | Method and apparatus for gravimetrically metering pourable or flowable material to be weighed - An apparatus and a method for gravimetrically metering pourable or flowable material to be weighed are provided. A container holds the material to be weighed and a weighing device detects the weight of the container. A first actuator fills the container located on the weighing device with the material to be weighed and a second actuator empties the container or places the empty container on the weighing device. Further, a control device for generating control signals for the actuators is provided. A signal filter with a variable filter characteristic filters the weighing signal delivered by the weighing device. A filter matching device, controlled by the control device, matches the filter characteristic as a function of the control signals to various predetermined filter characteristics. | 10-28-2010 |
Witold Pietrzak, Maricopa, AZ US
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20080251499 | Metal-sheathed structure stripper - A device and method for the removal of a metal-sheath layer from a metal-sheathed structure using capacitive discharge in conjunction with step-up and step-down transformers to create a low voltage, high current pulse to remove a selected portion of the metal-sheath layer from the metal-sheathed structure. | 10-16-2008 |