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Patent No. 5421089

Fork With Timer

A fork with timer for providing a cue to a user after an elapsed period of time for indicating that another bite of food using the fork may be taken.

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Assignee: Aerojet-General Corporation


Location: LaJolla, CA
No. of patents: 30

NumberTitleIssue Date
5708105Di-(alken-1-yl)-substituted borinic acids and borinates as oxidation inhibitors for carbon composites
Resins and carbon-carbon composites are formed from di(alken-1-yl) borinic acids and borinates, either as monomers or as nonpolymerizing additives in a monomer mixture, with the effect of sharply increasing the oxidative stability of the cured product. Th...
01/13/1998
4882904Two stage rocket combustor
A method for operating a rocket engine by injecting fuel and oxidizer into an elongated combustion chamber in two flows, a core flow where the fuel and oxidizer are intimately mixed and immediately combusted and a peripheral curtain flow which surrounds t...
11/28/1989
4869442Self-deploying airfoil
A self-deploying airfoil mounted on the body of a device such as an artillery shell projectile and folded down and forward with respect to the relative airstream. The airfoil is attached to a yoke by a pivot pin. The yoke shaft is pivoted in the body in a...
09/26/1989
4803927Ammunition round and method of manufacture thereof
An improved telescoped ammunition round having a projectile comprising an aft recess to receive a booster tube that is affixed to the cartridge case and which remains stationary relative to the cartridge case throughout the firing sequence. The booster tu...
02/14/1989
4803661Low power eprom logic cell and logic arrays thereof
A plurality of logic cells that may be iteratively connected in the form of an array to form an electrically programmable logic device. Each such cell utilizes a plurality of threshold modifiable CMOS transistors as permanent memory storage devices to pro...
02/07/1989
4797085Forming apparatus employing a shape memory alloy die
An apparatus using a shape memory alloy such as nickel-titanium as a die material in one embodiment is used for performing pseudo-isostatic pressing by using a uniaxial mechanical press to densify a powder mixture, preform or presinter with or without the...
01/10/1989
4782758Ammunition round
An improved telescoped ammunition round having a projectile comprising an aft recess to receive a booster tube that is affixed to the cartridge case and which remains stationary relative to the cartridge case throughout the firing sequence. The booster tu...
11/08/1988
4776281Combustible push rod for launching tubular projectiles
A push rod for use in launching tubular projectiles employs a pyrophoric sintered mesh cloth machined to mate with the aft end of the tubular projectile within the gun barrel. The mesh cloth is configured to be entirely consumed during the initial portion...
10/11/1988
4757961Torque balanced rate gyro deriving its spin from a host projectile
A rate gyro instrument primarily for use in a gun fired spinning projectile eliminates all associated bearings by affixing the rotor to the spinning projectile body to obviate spin rotor bearings and by employing a flexible joint or constriction as a gimb...
07/19/1988
4754139Uncooled high resolution infrared imaging plane
A two-dimensional infrared focal plane employing a uniquely configured detector array for reducing the thermal conductance between detectors and between each detector and its environment to enhance signal-to-noise and spacial resolution without requiring ...
06/28/1988
4738610Isostatic press using a shape memory alloy
An apparatus using a shape memory alloy such as nickel-titanium as a die material for performing pseudo-isostatic pressing by using a uniaxial mechanical press to densify a powder mixture, preform or presinter with or without the use of pressure transmitt...
04/19/1988
4732556Apparatus for synthesizing and densifying materials using a shape memory alloy
An apparatus using a shape memory alloy such as nickel-titanium as a reaction vessel for self-sustaining combustion (SSC) reaction synthesis of ceramics, intermetallics, metal or ceramic matrix composites and the like and as a die material for pseudo-isos...
03/22/1988
4711152Apparatus for transmititng data to a projectile positioned within a gun tube
An apparatus for transmitting data from the exterior of a gun tube to a projectile positioned within the gun tube utilizes at least two electromagnetic-acoustic transduction devices, one such device positioned on or near the exterior periphery of the gun ...
12/08/1987
4681038Ammunition cartridge case
An ammunition round cartridge case having a stress riser in the form of at least one elongated recess adapted for preserving the seal of ignition gases within the cartridge case during initial stages of ignition and also adapted for allowing a splitting o...
07/21/1987
4551814Functionally redundant logic network architectures
A logic gate structure having functionally redundant architecture for enhanced production yields and reliability comprises a plurality of two-input nodes at least some of which may be programmed by control states for changing the logical function of the g...
11/05/1985
4551815Functionally redundant logic network architectures with logic selection means
A programmable gate structure having functionally redundant architecture for enhanced production yields and reliability comprises a plurality of two-input nodes at least some of which may be programmed by control states for changing the logical function o...
11/05/1985
4542508Amenable logic gate and method of testing
A multiple input logic gate that is amenable to full testability without the "buried logic" problem of conventional VLSI logic devices and a novel dynamic test method for increasing fault-free production and simplified analysis of sub-chip faults. In one ...
09/17/1985
4460153Lever operator for a valve control and actuating mechanism
A lever operator for use primarily with valves of the plug type in which a tapered plug is raised to unseat associated slips and then rotated to a valve open position during opening of the valve and is rotated to a valve close position and lowered to seat...
07/17/1984
4381399Purification of tetrahydrodibenzo[b,d]pyrans from crude synthetic mixtures
(-)-6a,10a-Trans-1-hydroxy-3-n-pentyl-6,6,9-trimethyl-6a,7,8,10a-tetrahydro dibenzo[b,d]pyran or any of its related pyrans in which the n-pentyl group is replaced by hydrogen or C1 -C10 alkyl is isolated from a crude synthetic mixture...
04/26/1983
4328281Dimer isocyanate liner compositions
A composition is disclosed in which a solid isocyanate compound such as toluene-diisocyanate dimer is dispersed within a polyurethane based on a hydroxy-terminated organic compound, preferably polybutadiene. The composition can be fully cured on a surface...
05/04/1982
4295346Recirculating vapor system for gelling cryogenic liquids
A system for gelling cryogenic liquid in which a jet pump is used to educt cryogenic vapor from a gel storage container, mix that educted vapor with steam or other gelant vapor, and inject the resultant mixture into a fine spray of cryogenic droplets, is ...
10/20/1981
4291859Plug-type valve
An improved bidirectional plug valve with increased Cv or decreased insertion pressure loss is provided. The improvements reside in a unique combination of surprising structural parameters including an increase in the diffuser-to-dump transitio...
09/29/1981
4288202Fan having internal polyhedral strut frame
Several embodiments of high efficiency fans having lightweight housings supported and interconnected with their impellers by star-shaped frames disposed inside the fans, or in other words inside the areas defined by the fan housings, are illustrated herei...
09/08/1981
4236464Incineration of noxious materials
A combustion method and apparatus for disposal of materials that release noxious, corrosive, and/or toxic gases when burned, particularly halogens and/or acidic gases, is disclosed herein. In the disclosed system, a waste material is burned, the gaseous p...
12/02/1980
4232608Dimer isocyanate liner compositions
A composition is disclosed in which a solid isocyanate compound such as toluene-diisocyanate dimer is dispersed within a polyurethane based on a hydroxy-terminated organic compound, preferably polybutadiene. The composition can be fully cured on a surface...
11/11/1980
4223606Dual thrust rocket motor
Dual thrust solid propellant rocket motor is described. The motor comprises a housing having a nozzle, a first propellant grain received by the housing, a second propellant grain arranged within the first propellant grain, and igniter means. The first pro...
09/23/1980
4220001Dual expander rocket engine
A composite cycle rocket engine having an inner engine disposed to discharge directly into the nozzle of an outer engine, is described herein....
09/02/1980
4207025Inflatable fan housing
An inflatable spiral or snail shell shaped fan housing comprised of flexible surface supported by a rigid housing back wall and by an impeller shroud attached to that back wall, is described herein....
06/10/1980
4187129Gelled mechanically stable high energy fuel composition containing metal platelets
1. A gelled mechanically stable high energy fuel composition comprising a hydrazine selected from the group consisting of hydrazine, unsymmetrical dimethyl hydrazine and mixtures thereof and an amount of metal platelets effective to produce a mechanically...
02/05/1980
4184359Gas monitor for liquid flow line
A device for measuring the concentrations of entrained and/or dissolved gases in a liquid flow, that includes a gas/liquid separating chamber, probes for monitoring depression of the liquid level in that chamber by separated gases, a regulator for providi...
01/22/1980
 
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