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| Number | Title | Issue Date |
| 4883072 | Mouth appliance for assisting in weight control A disposable appliance for inhibiting the intake of food is disclosed. The appliance comprises first and second spaced pressure sensitive adhesive pads applied to the cheeks of a user at the corners of the user's mouth, the ends of one or more bands being... | 11/28/1989 |
| 4841732 | System and apparatus for producing and storing liquid gases The disclosed system produces liquid nitrogen from ambient air which is supplied under pressure to a membrane separator. Most of the gases other than nitrogen permeate the membranes, and are vented to the atmosphere leaving almost pure nitrogen gas. The n... | 06/27/1989 |
| 4837615 | Gap measuring apparatus The invention disclosed herein comprises a hand held optical probe axially insertable into the fastener holes of a multilayered panel for measuring the gap between the edges of the panels at the hole site. The hand held probe includes a light source, two ... | 06/06/1989 |
| 4825881 | Appliance for assisting in weight control An appliance for inhibiting the intake of food is disclosed. The appliance comprises first and second spaced adhesive strips applied above and below the upper and lower lips of a user and interconnected by lines, which may be elastic, and which provide re... | 05/02/1989 |
| 4812750 | Environmental stress screening apparatus The disclosed apparatus provides a universal wheeled cart for carrying electronic devices to be stress tested in a sealed environmental chamber in which the temperature is varied between high and low limits while the power to the electronic components is ... | 03/14/1989 |
| 4790340 | Canopy for a child's playpen This patent discloses a playpen canopy comprising 4 universal mounting connectors which are readily removably attached to each of the corners of a conventional collapsible playpen of the type popularly in use. The depicted canopy is a dome shaped cloth fa... | 12/13/1988 |
| 4646479 | Deburring method A deburring method is presented wherein a cylindrical brush rotationally contacts the workpiece. The brush includes a mandrel having a central axle to provide support during use. To the mandrel is attached a multiplicity of long bristles. Each bristle is ... | 03/03/1987 |
| 4643148 | Mechanical override for electronic fuel control on a piston engine This invention discloses apparatus for controlling the throttle of an aircraft engine so that it is either in the fully automatic electronic fuel control mode or in the completely manual mode while using a single throttle lever. In the event of a power fa... | 02/17/1987 |
| 4610013 | Remote multiplexer terminal with redundant central processor units An approach is disclosed for accomplishing redundancy in the central processor units of a remote multiplexer terminal (RMT). Through execution of a stored software program the RMT receives data from input/output devices, processes that data and transmits ... | 09/02/1986 |
| 4602216 | Current monitoring apparatus Measuring apparatus is presented which permits monitoring of current consumption of electronic equipment under operating conditions. The apparatus includes a probe-like element shaped to fit into the equipment fuse holder in place of the cartridge fuse an... | 07/22/1986 |
| 4588468 | Apparatus for changing and repairing printed circuit boards A printed circuit board modification and repair system is presented which functions under computer control. Modification is accomplished by securing the printed circuit board to an X-Y positioning fixture mounted on a work station table. After indexing to... | 05/13/1986 |
| 4549207 | Gap measuring apparatus Apparatus is disclosed for optically measuring the width of a gap between abutting panel surfaces of a multilayered structure that is to be assembled by bolts or rivets inserted through fastener holes. A scanning video camera having an optical image input... | 10/22/1985 |
| 4533994 | Priority circuit for a multiplexer terminal A priority gating system is disclosed which is useful with a communication subsystem having a multiplicity of parallel input/output lines. To service these lines a priority address determination is made for all channels with 0 designating the highest prio... | 08/06/1985 |
| 4370959 | Two stroke cycle engine with sustained power stroke A two-stroke cycle internal combustion engine has a sustained power stroke which results from delayed mixing of a stratified charge. Use of delayed mixing of an overall stoichiometric air-fuel mixture results in formation of a low amount of the oxides of ... | 02/01/1983 |
| 4221198 | Internal combustion engine with sustained power stroke A four stroke cycle internal combustion engine is presented having a sustained power stroke which results from a delayed mixing of a stratified charge. Use of delayed mixing of an overall stoichiometric air-fuel mixture results in formation of a low amoun... | 09/09/1980 |
| 4177898 | Gift wrap package A sheet gift wrap package is comprised of two identical nests of folds positioned in a transparent plastic bag in back-to-back relationship. Each fold is comprised of at least two sheets of decorative gift wrap, the sheets being arranged in each fold so t... | 12/11/1979 |
| 4173032 | Binary capacitor A binary capacitor consists of a piston having a metallized band on its periphery. The piston is movable between first and second positions within a cylinder which carries two spaced metallized bands. One of the positions of the piston defines a position ... | 10/30/1979 |
| 4167930 | Internal combustion engine with sustained power stroke A four stroke cycle internal combustion engine is presented having a sustained power stroke which results from a delayed mixing of a stratified charge. Use of delayed mixing of an overall stoichiometric air-fuel mixture results in formation of a low amoun... | 09/18/1979 |
| 4158767 | Programmable binary counter This invention concerns a programmable counter which can be preset to provide an output indication one pulse after the count of the incoming signal pulse train has reached the integer M, where M equals any binary real number over the range (0, 1, 2, 4, 8,... | 06/19/1979 |
| 4149037 | High common mode relay multiplexer A relay multiplexer for low level analog signals is disclosed. To provide a low cost system, inexpensive reed type relays are used. Such relays provide a high capacitive coupling from the relay contacts to the relay coil and thereby degrade the AC common ... | 04/10/1979 |
| 4147061 | Thermocouple reference junction calibrator Apparatus is disclosed which provides an improved means of measuring the operating characteristics of a multiplicity of thermocouple reference junctions. The apparatus allows accurate sensing of temperature through use of both a measurement and reference ... | 04/03/1979 |
| 4142442 | Digital fuze The time-to-go of the fuze of an artillery shell is digitally set after the round has been fired but before it leaves the muzzle of the gun. The communications link for setting the fuze includes a transmitting coil mounted on the gun muzzle and a receivin... | 03/06/1979 |
| 4047508 | Cooling air distribution system for reciprocating aircraft engines Disclosed is an improvement in aircraft engines of the opposed piston type comprising cylinders arranged side by side. Cooling efficiency is improved and both average and hot zone temperatures are decreased by an improved air distributor comprising channe... | 09/13/1977 |
| 4047110 | Transmitter coupled active filter The high power (10-1000 W) modulated carrier of a noisy transmitter is attenuated and amplitude limited and is used to control a power oscillator which regenerates the carrier and modulations without the loss of power. The power oscillator is slaved in fr... | 09/06/1977 |
| 4026659 | Cooled composite vanes for turbine nozzles A turbine nozzle has inner and outer shrouds structurally connected by hollow core members which together with nose and tail inserts retained in the shrouds form airfoil-shaped vanes. Openings in one of the shrouds supply cooling air to the hollow vane co... | 05/31/1977 |
| 4025361 | Removal of ceramic investment shell mold from metal casting Ceramic shell molds are removed from cast turbine blades by contacting the shell mold with a concentrated solution of HF whereby the binder of the shell is destroyed and the shell material falls away from the metal casting.... | 05/24/1977 |
| 4021980 | Storm window A storm window consisting of a rectangular window pane supported in a metallic frame is mounted over a window in a building by means of U-shaped channels mounted on the building and surrounding three sides of the building window. The storm window is slipp... | 05/10/1977 |
| 4018046 | Infrared radiation suppressor for gas turbine engine Apparatus for suppressing infrared radiation emitted from hot metal parts at the aft end of a gas turbine engine and from the exhaust gas plume thereof is provided and such apparatus employs components which utilize an ejector principle to provide cooling... | 04/19/1977 |
| 4007587 | Apparatus for and method of suppressing infrared radiation emitted from gas turbine engine An apparatus for and method of suppressing infrared radiation emitted from hot metal parts at the aft end of a gas turbine engine and from the exhaust gas plume thereof is provided and such apparatus comprises a dual purpose ejector vane assembly operativ... | 02/15/1977 |
| 3996048 | Method of producing holes in powder metallurgy parts A procedure for providing bores or other internal passages in hot isostatically pressed powder metal articles, especially those formed of nickel- or cobalt-base superalloys in which the passage is defined by a thin walled metal tube filled with refractory... | 12/07/1976 |
| 3987396 | Repeater system A radio frequency FM repeater system receives and retransmits at the same frequency, the retransmitted signal having the same deviation as the received signal. To accomplish this the IF filter is notched at its center frequency and the receiver feedback l... | 10/19/1976 |
| 3978656 | Gas turbine engine air inlets having particle separators A gas turbine engine air inlet having an improved separator for particulate matter is described. Liner means define an annular flow passage which curves inwardly to the entrance of the engine's compressor. Hollow struts extend radially through the curved ... | 09/07/1976 |
| 3977811 | Air pump for use in dusty environment Apparatus is disclosed for pumping gases laden with abrasive particles. The pump comprises a cylindrical outer housing within which there are three axially adjacent sections, namely; an inertial bypass inlet; a powered rotor midsection; and an annular exh... | 08/31/1976 |
| 3974966 | Miniature flat spray nozzle A miniature flat spray nozzle is disclosed which delivers a fan-shaped mist of fuel to a gas turbine combustor from a narrow slot. The slot is formed by making a transverse cut in a fuel-carrying conduit at a location near its end. A specially formed part... | 08/17/1976 |
| 3973700 | Bellows pump with extension having integral valves A pump or spray is comprised of a flexible bellows having a non-collapsible extension in which there are inlet and outlet ports. Flapper valves, integral with the extension, open and close the ports on the compression and expansion strokes of the bellows.... | 08/10/1976 |
| 3973873 | Negative torque sensor for a gas turbine engine A negative torque sensing and control system is disclosed which is useful with a differential geared or fixed shaft gas turbine engine of the type installed in general aviation aircraft. Negative torque is sensed in the gear train between the propeller an... | 08/10/1976 |
| 3971372 | Oxygen-generating apparatus for scuba diving Oxygen generation by means of electrolysis is used for underwater swimming. The apparatus includes a back-pack containing an oxygen generator, a battery, a storage tank and a purifier, plus breathing equipment, including hoses and mask. The generator comp... | 07/27/1976 |
| 3970538 | Apparatus for electro-chemical milling of turbine blade edges Apparatus is described which enables close tolerance electro-chemical milling of the leading and trailing edges of blades used in gas turbine engines. Using turbine blades formed with the edges slightly oversize in the as-cast condition, electro-chemical ... | 07/20/1976 |
| 3970439 | Particle separator A particle separator for separating and removing foreign particles from engine inlet air incorporates a plurality of identical channel assemblies. The channel assemblies are arranged in side-by-side fashion in a defined panel area. Separation is achieved ... | 07/20/1976 |
| 3964753 | Controlled aperture seal A carbon ring seal for a shaft rotating at high speed is capable of preventing high temperature, high pressure gas from entering the oil system. The carbon seal is constructed so that at ambient temperature it works as a controlled gap seal, but when the ... | 06/22/1976 |
