David W. Smith
David W. Smith, Rock Springs, WY US
Patent application number | Description | Published |
---|---|---|
20100226840 | Removal of impurities in the production of crystalline sodium carbonate, bicarbonate, or sulfite - A magnesium treatment for removing water-soluble impurities in a process for making crystalline sodium carbonate, bicarbonate, or sulfite. A waste comprising such impurities is treated with a magnesium compound to form water-insoluble matter which is removed to form a purified solution. The treatment may be performed on a solution which contains the waste and optionally dissolved calcined trona. The purified solution may be used as a feedstock to form crystalline soda ash, and/or used as a reactant to produce crystalline sodium sulfite or bicarbonate via reaction with SO | 09-09-2010 |
20110274599 | Impurities removal from waste solids in the production of soda ash, sodium bicarbonate and/or other derivatives - A method for removing impurities from a waste solid to provide at least a portion of a suitable crystallizer feed to a process for making crystalline sodium carbonate, bicarbonate, and/or other derivatives. The method comprises: contacting the waste solid with a leach solution to dissolve at least one impurity and dissolving the resulting leached residue. Leaching may include heap percolation. The leach solution may comprise a crystallizer purge liquor, a process waste effluent, a mine water, or mixtures thereof. The method may further comprise adding a magnesium compound to the resulting leached residue during or after its dissolution to remove another impurity. The waste solid preferably comprises a pond solid containing such impurities. The pond solid may be recovered from a pond receiving crystallizer purge liquor(s) and/or other process waste effluent(s). The pond solid may contain sodium carbonate, any hydrate thereof, sodium bicarbonate, and/or sodium sesquicarbonate. The impurities to be removed may comprise sodium chloride, sodium sulfate, silicates, and/or organics. | 11-10-2011 |
David W. Smith, Oakmont, PA US
Patent application number | Description | Published |
---|---|---|
20100199992 | CUSHION INSIDE A CUSHION PATIENT INTERFACE - A patient interface device that includes a mask shell and a cushion assembly. The cushion assembly includes a seal cushion and a support cushion. The seal cushion contacts a first area of a patient's face to form a seal therewith. The support cushion defines a second area over a face of such a patient when the patient interface device is being worn. The second area overlaps at least a portion of the first area. | 08-12-2010 |
20110232645 | INTERFACE APPARATUS IDENTIFICATION SYSTEM AND METHOD AND DIFFERENTIATING FEATURE THEREFOR - An interface apparatus identification system for a respiration machine such as, for example, a medical ventilator, includes a detection element which is adapted to communicate with the ventilator, a patient interface assembly including a patient interface apparatus for delivering a flow of gas from the ventilator to an airway of a patient, and a differentiating feature which is incorporated into the patient interface assembly. The patient interface apparatus is selected from a predetermined category such as, for example, a specific make or brand. The differentiating feature is detectable by the detection element to distinguish patient interface apparatus that fall within the predetermined category from those that do not. Operation of the respiration machine in conjunction with the patient interface apparatus is dependent upon detection of the differentiating feature by the detection element. An associated identification method is also disclosed. | 09-29-2011 |
20120204878 | PATIENT INTERFACE DEVICE WITH ADJUSTABLE HEADGEAR AND FRAME - A patient interface device includes a main frame and a headgear. The main frame includes a central support portion for supporting a cushion component and first and second arms extending from the central support portion. The headgear includes a support portion, and first and second straps extending therefrom. The first strap has a first pocket and the second strap has a second pocket, wherein the first arm is received and moveable within the first pocket along a longitudinal axis of the first strap and the second arm is received and moveable within the second pocket along a longitudinal axis of the second strap. The headgear also includes first and second fastening mechanisms for securing the headgear to the main frame, holding the first arm in a selected position within the first pocket and holding the second arm in a selected position within the second pocket. | 08-16-2012 |
20120204880 | PATIENT INTERFACE DEVICE WITH ADJUSTABLE CHEEK SUPPORT - A patient interface device includes a main frame having a central support portion and first and second arms extending from the central support portion. A cushion component is coupled to the central support portion. A first cheek support element is coupled to the first arm. The first cheek support element includes a first cheek support portion that engages the face and is selectively moveable relative to the first arm to adjust the linear distance between the first cheek support portion and the cushion component. A second cheek support element is coupled to the second arm. The second cheek support element includes a second cheek support portion structured to engage the patient's face and is selectively moveable relative to the second arm to adjust the linear distance between the second cheek support portion and the cushion component. | 08-16-2012 |
20120229272 | WIRELESS IDENTIFICATION OF A COMPONENT OF A PRESSURE SUPPORT SYSTEM - An airway pressure support system ( | 09-13-2012 |
20120232403 | MASK COMFORT DIAGNOSTIC METHOD - A method of evaluating potential for discomfort of a patient ( | 09-13-2012 |
20120245962 | SLEEP MANAGEMENT VENDING KIOSK AND ASSOCIATED METHOD - A sleep management related vending kiosk is provided that includes a main housing, a processing unit provided within the main housing, a vending apparatus provided at least partially within the main housing, the vending apparatus storing a plurality of respiratory patient interface device products and being structured to selectively vend the respiratory patient interface device products under control of the processing unit. In a further embodiment, a facial scanning module is provided at least partially within the main housing, including a scanning device for scanning a face of a patient. The processing unit is programmed to recommend and cause the vending apparatus to vend one of the respiratory patient interface device products based on the scanning of the face of the patient. | 09-27-2012 |
20120325219 | PATIENT INTERFACE DEVICE WITH TUBING ASSEMBLY - A patient interface device ( | 12-27-2012 |
20140109911 | USER INTERFACE DEVICE PROVIDING IMPROVED LOAD DISTRIBUTION FUNCTIONALITY - A cushion member for a user interface device is provided. The cushion member is structured to provide a load distribution functionality responsive to the cushion member being donned by the user, wherein at least a portion of the cushion member has a local stiffness of less than or equal to 100 kPa/mm responsive to a stress increase on the cushion member of 1 kPa-15 kPa. | 04-24-2014 |
20140113986 | WATER-ABSORBING ELASTOMERIC MATERIAL - This invention relates to a rubbery or elastomeric polymer material taking up more than 5% by weight of water and at most 500% by weight of water after immersion in demineralized water at room temperature for a sufficient time to reach saturation, comprising: (a) repeating units from one or more hydrophobic organic monomers, and (b) repeating units from one or more monomers (a) being modified with one or more hydrophilic side groups. The rubbery or elastomeric polymer material may be in the form of a sheet, a foam, a coating adapted for adhesion to a substrate, or a fiber. This invention also relates to processes, polymerizable compositions, and foaming compositions for producing such rubbery or elastomeric polymer materials. | 04-24-2014 |
20140123981 | SKIN-CONTACT PRODUCT HAVING MOISTURE AND MICROCLIMATE CONTROL - Skin-contact products with a transpiration function such as medical devices or medicinal products, of which face masks, aspirators, ventilators, breast pumps or wound dressings are examples are described especially a skin-contact product with a transpiration function with an improved microclimate at a patient interface material-skin contact area. In an embodiment a material system ( | 05-08-2014 |
David W. Smith, Simpsonville, SC US
Patent application number | Description | Published |
---|---|---|
20100107640 | Air cooling apparatus for a purge valve - A cooling enclosure for a valve includes an elongated housing body having a pair of housing portions and a pair of removable end plates, the pair of housing portions separable along at least one longitudinally-extending seam. Fastener devices are provided for securing the pair of housing portions engaged along the at least one longitudinal extending seam. One or more apertures are provided for accommodating a like number of valve fittings, and cooling air inlet and outlet openings are also provided in the housing body for supplying and removing cooling air to the housing body. | 05-06-2010 |
20100162708 | METHODS, APPARATUS AND/OR SYSTEMS RELATING TO FUEL DELIVERY SYSTEMS FOR INDUSTRIAL MACHINERY - An assembly for delivering a supply of liquid fuel and a supply of purge air to a gas turbine engine, the assembly comprising: an annular dual-flow check valve for controlling the flow through concentric channels that have a common outlet, the annular dual-flow check valve comprising: an outer body and an inner body that define the concentric channels, which include an outer channel and an inner channel formed therein; a spring activated annular poppet that resides in the outer channel and has a range of motion in the axial direction; and an opening through the inner body that connects the outer channel to the inner channel; wherein the axial movement of the annular poppet is regulated by the pressure of the flow upstream of the annular poppet in the outer channel; and the axial range of motion of the annular poppet includes at least two axial positions. | 07-01-2010 |
David W. Smith, Woodbridge GB
Patent application number | Description | Published |
---|---|---|
20100142962 | MULTIWAVELENGTH TRANSMITTER - A multiwavelength transmitter comprises several laser sources ( | 06-10-2010 |
David W. Smith, Sugar Land, TX US
Patent application number | Description | Published |
---|---|---|
20090177552 | Pre-Paid Activation and Replenishment on a Point-of-Sale Device - A system and method for processing prepaid financial transactions. The system and method describe the utilization of one or more remote terminals that are adapted to acquire transaction information from a user and transmit a first signal indicative of the transaction information. The remote terminal is further adapted to receive a second signal indicative of authorizing information that is delivered to the user. In addition, an authorizing host is adapted to receive the first signal transmitted by the one or more remote terminals. In one aspect, the authorizing host routes the first signal including the transaction information to an exchange host for approval of the financial transaction, and the exchange host transmits the second signal including the authorizing information to the remote terminal via the authorizing host. | 07-09-2009 |
David W. Smith, Ipswich GB
Patent application number | Description | Published |
---|---|---|
20090016741 | OPTICAL COMMUNICATION - The present invention relates to a method of optical communication, in particular optical communication involving spectral filtering in a passive optical network. The method includes the steps of: (i) performing a first spectral filtering function on a source signal having a spectral width so as to generate a plurality of feeder signals that are spectrally spaced apart from one another; (ii) performing a respective noise reduction function on the feeder signals; (iii) combining the feeder signals over a common waveguide of the optical link; (iv) receiving the feeder signals carried over the optical link and modulating the received feeder signals so as to impose data thereon; and, (v) returning the modulated feeder signals over the optical link so as to communicate the imposed data. Because noise is reduced centrally, a simpler passive optical network can be achieved. | 01-15-2009 |
David W. Smith, Shelby, MI US
Patent application number | Description | Published |
---|---|---|
20080271645 | MOUNTABLE TABLE FOR THE REAR OF A VEHICLE - The present disclosure provides a mountable recreation fable that mounts on the rear of the vehicle while the vehicle is parked and the tailgate is open. The recreation table includes a table top and a table pole attached to the underside of the table top. A table mount attaches to the rear of the vehicle, and the mount includes a receiver for the table pole to be inserted into. The mount is secured to either a striker or a seat headrest in the rear of the vehicle. Advantageously, the recreation table of the present disclosure easily attaches to the rear of the vehicle. The recreation table can be utilized in combination with seats in the rear of the vehicle, and the present disclosure requires no modification to attach the table to the vehicle. | 11-06-2008 |
David W. Smith, Scottsdale, AZ US
Patent application number | Description | Published |
---|---|---|
20080215181 | METHOD AND SYSTEM FOR PERFORMING INVASIVE MEDICAL PROCEDURES USING A SURGICAL ROBOT - A method and system for performing invasive procedures includes a surgical robot which is controlled by a guidance system that uses time of flight calculations from RF transmitters embedded in the robot, surgical instrument, and patient anatomy. Sensors around the room detect RF transmissions emitted by the RF transmitters and drive the robot according to a preprogrammed trajectory entered into the guidance system. | 09-04-2008 |
20130123799 | METHOD AND SYSTEM FOR PERFORMING INVASIVE MEDICAL PROCEDURES USING A SURGICAL ROBOT - A method and system for performing invasive procedures includes a surgical robot which is controlled by a guidance system that uses time of flight calculations from RF transmitters embedded in the robot, surgical instrument, and patient anatomy. Sensors around the room detect RF transmissions emitted by the RF transmitters and drive the robot according to a preprogrammed trajectory entered into the guidance system. | 05-16-2013 |
David W. Smith, Calgary CA
Patent application number | Description | Published |
---|---|---|
20130175422 | BASE FOR SUPPORT OF A REMOVABLE POST - A base for supporting a removable sign post on a surface utilizes a clamp, housed within a tubular housing, to grip and engage the post in a gripping position. The clamp has a clamp element that is flexibly displaceable to grip the post or alternatively has more than one discrete clamp element, each of which is actuable relative to the housing. Actuators, such as setscrews or bolts, are advanced through the housing into engagement with a corresponding clamp element to cause the clamp to grip the post. The actuators are retractable from the housing to cause the clamp to release from the post in a released position to enable removal of the post or insertion of the post into the base. | 07-11-2013 |
David W. Smith, Richmond, IN US
Patent application number | Description | Published |
---|---|---|
20140343599 | Devices and Systems to Mitigate Traumatic Brain and Other Injuries Caused by Concussive or Blast Forces - A system for reducing the damaging effects of radiant energy, blast, or concussive events includes applying pressure to at least one jugular vein to reduce the egress of blood from the cranial cavity during or before the incidence of the imparting event. Reducing blood outflow from the cranial cavity increases intracranial volume and/or pressure of the cerebrospinal fluid to reduce the risk of traumatic brain injury and injuries to the spinal column. Reducing blood outflow further increases the intracranial pressure and volume, and thereby increases the pressure and volume of the cochlear fluid, the vitreous humor and the cerebrospinal fluid to thereby reduce the risk of injury to the inner ear, internal structure of the eye and of the spinal column. In addition, increasing intracranial pressure and volume reduces the likelihood of brain injury and any associated loss of olfactory function | 11-20-2014 |
David W. Smith, Cedar Park, TX US
Patent application number | Description | Published |
---|---|---|
20140371962 | VEHICLE IMMOBILIZER - Embodiments described herein describe an immobilization device configured to simulate the communication of safety signals of a charging cable to a charging port of an electric vehicle; such that a processor of the electric vehicle may determine that the charging state of electric vehicle is ready to charge, thus immobilizing the vehicle. In embodiments, the immobilization device may be configured to restrict the movement of the electric vehicle without supplying power to the electric vehicle, and be configured to allow the components of the electric vehicle to be utilized if the immobilization device is coupled to the charging port of the electric vehicle. | 12-18-2014 |
20150008873 | ELECTRIC VEHICLE CHARGING LOCK - Embodiments disclosed herein describe systems and methods for a charging system with a charging lock to couple a charging converter and a charging handle. In embodiments, the charging converter may also be coupled to a charging port of an electric vehicle. The charging lock may secure the charging converter and the charging handle while the charging converter is within the charging port charging the electric vehicle. | 01-08-2015 |