Abstract: A sheet of flexible material has a pair of spaced opposite faces, first and second spaced opposite side edges and third and fourth spaced opposite side edges. The side edges border the opposite faces. A slit is formed through the sheet in proximity with the first edge for removably supporting the sheet on a supporting object. Fastening devices on one of the faces of the sheet adjacent the first edge and each of the third and fourth edges and on the other of the faces of the sheet adjacent the second edge and each of the third and fourth edges function to fasten the sheet to itself with an article rolled up therein and with the second edge in proximity with the first edge. The sheet thus supports and carries the article so that the article is removably supported and carried by the supporting object via the sheet.
Abstract: A control member is rotatably mounted on the fuselage or on the wing of a model aircraft in spaced relation with a supporting surface of the fuselage. A gear leg is supported at one end by the control member and supports a landing wheel at its spaced opposite end. The gear leg extends radially of the control member. A torsion spring is coaxially mounted with the control member for storing energy when the control member is in a position whereby the gear leg is fully extended for ground operations and for releasing stored energy to rotate the control member in a manner whereby the gear leg is retracted for flying operations. A gear retracting initiator coupled to the torsion spring initiates gear retraction. An extend lock locks the gear leg in its fully extended position. A retract lock locks the gear leg in its retracted position.
Abstract: Each of a number of wheel hubs of a modified mini stock racing car is removably affixed to a corresponding one of a number of brake rotors in coaxial relation with its corresponding axle. Each of the wheel hubs has a hollow cylindrical base portion coaxially positioned around the corresponding axle on the side of the corresponding brake rotor closer to the corresponding end of the corresponding axle than the opposite side of the brake rotor. The base portion has a first end and a spaced opposite second end axially farther from the corresponding brake rotor than the first end. A number of equiangularly spaced ears extend radially from the second end of the base portion of the hub for equal radial distances and a plurality of equiangularly spaced gussets equal in number to the ears extend radially from the base portion.
Abstract: An ultrasonic contact lens cleaning device has a housing with a hemispherical cover hingedly affixed to it. A container for a lens cleaning solution is mounted in the housing. An acoustic resonant structure in the housing is coupled to the container. The structure has piezoelectric components. A frequency modulated power circuit in the housing is electrically connected to and drives the acoustic resonant structure and provides a controlled level of ultrasonic cleaning energy.
Abstract: A kitty litter disposal device for hygienically reusing kitty litter in a litter box has a plurality of fine-meshed nets in juxtaposition with the bottom of the litter box in the box. Each net covers the bottom of the litter box and extends along the inside surfaces of the sides of the litter box, over the lip of the litter box and along at least part of the outside surfaces of the sides. Net fasteners in the nets and on selected sides of the litter box releasably fasten the nets in position in the box, whereby kitty litter in the litter box on the nets is siftable via the uppermost of the nets upon unfastening of the uppermost of the nets and manual holding of same in the box at a distance above the remaining ones of the nets thereby to pass the kitty litter into the box.
Abstract: A can supporting device supports a can from the rung of a ladder when the side rails of the ladder abut an upright supporting surface and has a support band of L configuration with first and second arms. The first arm has a hooked free end for hooking onto a rung of the ladder. The free end of the second arm has a retainer for a can resting on the second arm. A circular band is affixed to the first arm of the support band and encircles and thereby restricts movement of the can. An abutting bracket is affixed to the support band in movable relation to the support band into abutment with a rung of the ladder. This stabilizes the position of the supporting device and the can.
Abstract: A clamp clamping a side of a container has a head portion and a pair of leg portions extending from the head portion and partially abutting opposite surfaces of the side of the container when in use. The head portion has support part angularly inclined to the leg portions. A first permanent magnet is mounted on the support part of the head portion in a manner whereby the magnet releasably holds a brush via the magnetic metal part of the brush over the lip of the container with the bristles of the brush over the open container and sloped downward from the handle of the brush, so that liquid on the bristles will drip into the container without befouling any of the brush, the container, or the proximate area of the container. A second permanent magnet is mounted on one of the leg portions of the clamp in a manner whereby the second magnet magnetically couples the clamp to a magnetic metal container.
Abstract: A source of terminal voltage is connected to the armature current input terminal of a DC shunt motor whereby armature current is supplied to the armature. A monitor monitors the terminal voltage and armature current in a determined manner and varies the shunt field current in a manner whereby the air gap flux density of the motor is varied to control the torque of the motor drive shaft.
Abstract: A mooring line flotation device for maintaining a mooring line extending from an offshore structure above the surface of a body of water when the mooring line is not in use. The flotation device is a raft-like float having an open center. A buoyant bordering member is provided around the center and a perforated platform member extends across the center above the surface of the body of water when the float is afloat. A coupling device is affixed to the float for releasably affixing the float to the offshore structure in close proximity therewith, whereby a mooring line extending from the structure is supported, when not in use, by the platform member in essentially unfouled, clean, dry and readily available condition for use when desired.
Abstract: A seat with integral three point user restraint which has a seat and a three point restraint system for restraining the user to the seat, the three point restraint system is mounted entirely and directly to the seat, the seat and the three point restraint system together form a self contained integral unit so that the seat is adaptable to different installations without relocating the three point restraint system.
December 23, 1988
Date of Patent:
December 26, 1989
Grumman Allied Industries, Inc.
David A. White, James W. Hofrichter, Harold J. VanDuser
Abstract: A bus interface unit for interfacing a serial bit data bus to a parallel bit data handling system includes a receiver for acquiring serial data from the bus. A clock generates a clock signal at a frequency corresponding to frequency of bits in the serial data. A clock processor receives the serial data and the clock signal to generate a clock processor signal for processing the serial data. A serial to parallel converter responsive to the serial data and the clock processor signal converts the serial data to parallel bit data. An output driver provides the parallel bit data to the parallel bit data handling system. A frame check sequence tester responsive to the serial data and the clock signal provides a validity output signal when the frame check sequence is recognized by the tester. The tester includes a plurality of devices operating in parallel to increase speed. A serial to parallel converter converts data received from the parallel bit data handling device to serial form data.
Abstract: An improved radar system and technique are disclosed for use in detecting and tracking moving or stationary targets within the antenna field of view. Precise correction of doppler induced location errors is provided by the use of raw sensor data. Return signals are doppler processed, phase shifted and compared in a manner which preserves the angle of arrival of a moving target irrespective of the boresight direction. Stationary target return signals are constructively combined so as to augment the target signal gain independent of the antenna boresight direction.
Abstract: A method for performing a repair to a damaged area of a composite structure wherein an obstruction is in close proximity to the repair site, including the steps of laying up a first patch on the repair site on a first side of the composite structure, applying heat to the repair site via a second side of the composite structure which is opposite to the first side of the composite structure so that heat is conducted through the composite structure from the second side of the composite structure to the repair site on the first side of the composite structure, applying pressure to the repair site, and curing the first patch.
Abstract: An aircraft empennage has a vertical stabilizer, a trailing edge fixed horizontal stabilizer rigidly attached to the aircraft and a movable leading edge elevator affixed to the aircraft. The elevator is movable through a high position and a low position relative to the horizontal stabilizer, thereby providing variable camber and incidence deflection and optimizing deflections while providing adequate power for all flight conditions.
Abstract: A toothbrush for efficient cleaning of the teeth, the area under the sulcus and between the teeth and for massage and stimulation of the gums, has a plurality of spaced longitudinally extending rows of bristles in center and outer rows extending from the brushhead. The bristles of the center rows extend perpendicularly to the brushhead and the bristles of each of the outer rows are inclined in different directions relative to the bristles of the center rows. The bristles of each of the outer rows are inclined in one direction from approximately the center of the row to one end thereof and in the opposite direction from approximately the center of the row to the opposite end thereof. Each of the one and opposite directions is away from a normal line at approximately the center of the row. The bristles of the outer rows may also be inclined away from the planes of the bristles of the center rows.