Patents Represented by Attorney, Agent or Law Firm Hardie R. Barr
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Patent number: 4736247Abstract: A video controlled solid state range finding system includes an opto-electric camera and a helium neon laser. The laser applies coherent light to a beam splitter which applies a reference beam to the camera and an outgoing beam to a first angularly variable reflector which directs the outgoing beam to the object. An incoming beam from the object is reflected to a second angularly variable reflector and thus to the camera via the beam splitter. The first and second reflectors are configured with respect to the beam splitter so that the distance D travelled by the outgoing beam is the same as the distance travelled by the incoming beam from the second reflector to the beam splitter. The reference beam produces a reference signal and the incoming beam produces an object signal at the camera. The difference between the reference and object signals is used to vary the angle A between the outgoing beam and the reference line (31), and the angle B between the incoming beam and the reference line.Type: GrantFiled: May 4, 1987Date of Patent: April 5, 1988Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Olin L. Graham, Jim K. Russell, Walter L. Epperly
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Patent number: 4721035Abstract: Apparatus and method of removing desirable constituents from an infusible material by infusion extraction, where a piston operating in a first chamber draws a solvent into the first chamber where it may be heated, and then moves the heated solvent into a second chamber containing the infusible material, and where infusion extraction takes place. The piston then moves the solvent containing the extract through a filter into the first chamber, leaving the extraction residue in the second chamber.Type: GrantFiled: September 30, 1986Date of Patent: January 26, 1988Assignee: The United States of America as represented by the Administrator of the National Aeronautics & Space AdministrationInventor: Franklin R. Chang-Diaz
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Patent number: 4682745Abstract: The invention relates to a preloadable vector-sensitive latch which automatically releases when the force vector from a latch member reaches a specified release angle. In addition, it contains means to remove clearance between the latched members and to preload the latch to prevent separation at angles less than the specified release angle. The latch comprises a triangular main link (77), a free link (74) connected between a first corner of the main link and a yoke member (72), a housing (82), and an actuator (71) connected between the yoke member and the housing. A return spring bias means (70) connects the main link to a portion of the housing. A second corner of the main link is slidably and pivotally connected to the housing via a slot (81) in a web portion of the housing. The latch housing has a rigid docking ring (79) alignable with a mating locking ring (75) which is engageable by a locking roller (78) journalled on the third corner of the triangular main link.Type: GrantFiled: October 3, 1985Date of Patent: July 28, 1987Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventor: William R. Acres
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Patent number: 4682225Abstract: Methods and apparatus are provided for automatic and/or manual adaptive bandwidth compression of telemetry.An adaptive sampler (16) samples a video signal from a scanning sensor (12) and generates a sequence of sampled fields. Each field and range rate information from the sensor are then sequentially transmitted to and stored in a multiple adaptive field storage means (22). The field storage means (22) then, in response to an automatic or manual control signal, transfers the stored sampled field signals to a video monitor (24) in a form for sequential or simultaneous display of a desired number of stored field signals.The sampling ratio of the adaptive sample (16), the relative proportion of available communication bandwidth allocated respectively to transmitted data and video information, and the number of fields simultaneously displayed are manually or automatically selectively adjustable in functional relation to each other and detected range rate.Type: GrantFiled: September 13, 1985Date of Patent: July 21, 1987Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventor: Olin L. Graham
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Patent number: 4682343Abstract: A processing circuit (P) is provided for correcting for input parameter variations, such as data and clock signal asymmetry, phase offset and jitter, noise and signal amplitude, in incoming data signals. An asymmetry corrector circuit (C) performs the correcting function and furnishes the corrected data signals to a convolutional encoder circuit (E). The corrector circuit (C) further forms a regenerated clock signal from clock pulses in the incoming data signals and another clock signal at a multiple of the incoming clock signal. These clock signals are furnished to the encoder circuit (E) so that encoded data may be furnished to a modulator (M) at a high data rate for transmission.Type: GrantFiled: September 11, 1984Date of Patent: July 21, 1987Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventor: Harold J. Pfiffner
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Patent number: 4676853Abstract: A diaphragm (10) suitable for extreme temperature usage, such as encountered in critical aerospace applications, is fabricated by a unique method, and of a unique combination of materials, which include multi-layered lay-ups of diaphragm materials (20a, 22, 20b) sandwiched between layers of bleeder fabric (29, 36), which, after being formed in the desired shape on a mold (26), are vacuum sealed (38) and then cured under pressure, in a heated autoclave, to produce a bond capable of withstanding extreme temperatures.Type: GrantFiled: August 30, 1985Date of Patent: June 30, 1987Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventor: Guillermo Lerma
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Patent number: 4664344Abstract: Apparatus and method of capturing an orbiting spacecraft by attaching a grapple fixture. A probe is inserted into an opening, such as a rocket nozzle, in the spacecraft until a stop on the probe mechanism contacts the spacecraft, a lever is actuated releasing a spring loaded rod which moves axially along the probe removing a covering sleeve to expose spring loaded toggle fingers which pivot open engaging the side of the opening. The probe is shortened and tensioned by turning a screw thread, pressing the fingers inside of the opening to compress the spacecraft between the toggle fingers and the stop. A grapple fixture attached to the probe, which is thus secured to the spacecraft, is engaged by appropriate retrieval means such as a remote manipulator arm.Type: GrantFiled: November 7, 1985Date of Patent: May 12, 1987Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: William D. Harwell, Dale A. Gardner
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Patent number: 4664177Abstract: A pumped loop two-phase heat transfer system, operating at a nearly constant temperature throughout, includes a plurality of independently operating grooved capillary heat exchanger plates supplied with working fluid through independent flow modulation valves connected to a liquid supply line, a vapor line for collecting vapor from the heat exchangers, a condenser between the vapor and the liquid lines, and a fluid circulating pump between the condenser and the heat exchangers.Type: GrantFiled: July 15, 1985Date of Patent: May 12, 1987Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventor: Fred Edelstein
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Patent number: 4637447Abstract: A shading device capable of compactly storing a flexible shade on a biased, window-shade type spring roller and controlled to deliver the shade selectively to either its operative shading or compact storage orientation.Type: GrantFiled: August 12, 1985Date of Patent: January 20, 1987Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Arthur M. Frank, Silvio F. DeRespinis, John Mockovciak, Jr.
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Patent number: 4635663Abstract: A self-contained, single-use hose and tubing cleaning module which utilizes available water supplies without requiring access to precision cleaning facilities. The module is attached to the water source at the inlet side and to the hose or tubing to be cleaned at the outlet side. The water flows through a water purification zone, a detergent dispensing zone and a filtration zone before the detergent-laden water flows into the tubing to clean the tubing walls. The module contains an embedded pad which is impregnated with a pH indicator to indicate to the user when the detergent has dissolved and rinsing of the tubing begins.Type: GrantFiled: October 3, 1985Date of Patent: January 13, 1987Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Fred P. Rollins, James S. Glass
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Patent number: 4635773Abstract: A rotary coupling for connecting a driven part to a source of rotary force transmits rotary force in one direction only and disengages to permit the driven part to free wheel when the input member is stopped and precludes the backdriving of rotary force from output member to input member. The coupling includes an input member having a splined shaft, a coupling member connected to the splined shaft, and a co-axial output member. The coupling member and the output member having complementary sets of axially facing clutch teeth. Guides in the form of helical grooves on the coupling member and spring loaded followers acting with the guides affect the engagement and disengagement of the clutch teeth by moving the coupling member toward and away from output member, the followers and guides themselves disengaging to permit free wheeling of output member when input member is stopped.Type: GrantFiled: April 22, 1985Date of Patent: January 13, 1987Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventor: William R. Llewellin