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Greywall
Dennis S. Greywall, White House Station, NJ US
| Patent application number | Description | Published |
|---|---|---|
| 20090003621 | SOUND-DIRECTION DETECTOR HAVING A MINIATURE SENSOR - A representative embodiment of the invention provides a sound-direction detector having a miniature sensor coupled to a signal-processing block. The sensor has (i) a microphone responsive to a sound wave and (ii) a differential pressure sensor (DPS) responsive to a pressure difference induced by the sound wave between two inlet ports located in proximity to the microphone. The signal-processing block applies phase-sensitive detection to the output signal generated by the DPS, while using the output signal generated by the microphone as a reference for the phase-sensitive detection, to measure the pressure difference. The signal-processing block then determines direction to the sound-wave source based on the amplitude of the sound wave at the microphone and the measured pressure difference. | 01-01-2009 |
| 20100212528 | SAFETY AND ARMING DEVICE FOR HIGH-G MUNITIONS - A representative embodiment of the invention provides a MEMS-based safety and arming (S&A) device having a shuttle movably connected to a frame by one or more bowed springs. The device has an electrical path adapted to electrically connect the frame and a contact pad. In the initial state, the electrical path has an electrical break. If the inertial force acting upon the shuttle (e.g., during launch) reaches or exceeds a first threshold value, then displacement of the shuttle with respect to the frame causes the electrical break to close. If the inertial force reaches or exceeds a second threshold value greater than the first threshold value, then a latching mechanism employed in the S&A device latches to keep the electrical break irreversibly closed thereafter. | 08-26-2010 |
Dennis S. Greywall, Lexington, VA US
| Patent application number | Description | Published |
|---|---|---|
| 20100020383 | THERMAL ACTUATOR FOR AN INFRARED SENSOR - In one embodiment, an infrared (IR) sensor has a flexible beam connected between two anchors supported on a substrate. The beam is mechanically coupled to a plate that has an IR-absorbing layer and is adapted to transfer the IR-induced heat to the beam. The heat transfer causes the beam to deform and move the plate with respect to the substrate. The motion of the plate is detected electrically or optically to quantify the amount of IR radiation received by the plate. The beam, anchors, and plate are formed from a planar layer of material that is supported at a specified offset distance from the substrate. During fabrication, certain portions of the planar layer are removed to define the beam, anchors, and plate. | 01-28-2010 |
Dennis S. Greywall, Whitehouse Station, NJ US
| Patent application number | Description | Published |
|---|---|---|
| 20080272306 | PNEUMATIC INFRARED DETECTOR - An infrared (IR) radiation detector adapted to detect IR radiation by measuring pneumatic expansion of a sense chamber that is caused by a temperature increase within that chamber due to the absorbed energy of the IR radiation. A reference chamber mechanically coupled to the sense chamber controls the pneumatic expansion of the sense-chamber. The expansion is detected either electrically or optically. | 11-06-2008 |
| 20080284028 | INTEGRATED DEVICE FABRICATED USING ONE OR MORE EMBEDDED MASKS - A device fabricated using a multi-layered wafer that has an embedded etch mask adapted to map a desired device structure onto an adjacent (poly)silicon layer. Due to the presence of the embedded mask, it becomes possible to delay the etching that forms the mapped structure in the (poly)silicon layer until a relatively late fabrication stage. As a result, flatness of the (poly)silicon layer is preserved for the deposition of any necessary over-layers, which substantially obviates the need for filling the voids created by the structure formation with silicon oxide. | 11-20-2008 |
Shaun S. Greywall, Lexington, KY US
| Patent application number | Description | Published |
|---|---|---|
| 20090142096 | Lift Mechanism For One Or More Developer Members In An Image Forming Device - The present application is directed to devices and methods to position a developer member relative to a photoconductive member in an image forming device. One embodiment includes an elongated lift plate positioned in proximity to a photoconductive member. An elongated opening may be positioned within the lift plate. The opening may include a first section and a second section. The first section may be positioned farther from the photoconductive member than the second section. A positioning member may be positioned within the opening, and be operatively connected to the developer member. A hold down may bias the positioning member towards an edge of the opening. The lift plate may be longitudinally movable between a first position with the positioning member in the first section of the opening that positions the developer member away from the photoconductive member, and a second position with the positioning member in the second section that positions the developer member against the photoconductive member. | 06-04-2009 |
Shaun Singh Greywall, Lexington, KY US
| Patent application number | Description | Published |
|---|---|---|
| 20100322676 | Cartridge Alignment Member for Aligning with a Developer Unit in an Electrophotographic Image Forming Device - An alignment member is externally disposed on a toner cartridge for alignment with a developer unit in an electrophotographic image forming device. In one embodiment of the invention, the alignment member includes a first portion to properly align the developer unit relative to the toner cartridge and a second portion to maintain the proper alignment of the developer unit. The alignment ensures proper installation of the toner cartridge into the image forming device and prevents undesirable spill of toner. | 12-23-2010 |