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| Number | Title | Issue Date |
| 4738538 | Gloss measurement device A simple inexpensive gloss measurement device which makes use of the measment of a maximum angle of view of a clear reflection to obtain a measurement of gloss, consists of an instrument of L-shaped configuration with one or more small images (e.g., holl... | 04/19/1988 |
| 4609215 | Hydraulic locking boltwork system A hydraulic locking boltwork system includes a hand operated rotary actua hydraulic pump and a plurality of hydraulic cylinders in which each cylinder rod drives a deadbolt into the door frame including the top, bottom, and/or sides. Hydraulic devices ar... | 09/02/1986 |
| 4608566 | Foliage-penetration surveillance radar A pseudo-noise modulated continuous wave radar for providing foliage penetion as a means for quickly establishing perimeter surveillance of an emplacement in heavily foliaged environments. An RF signal is radiated into free space by means of a static ant... | 08/26/1986 |
| 4605337 | Expedient runway surfacing with post tensioning system for expeditionary airfields A portable airfield runway having an anchoring and tensioning system is crised of a plurality of fiberglass reinforced plastic panels anchored with earth anchors at each end of the runway and uses self-contained hydraulic tensioning and load maintenance ... | 08/12/1986 |
| 4587817 | High security internal locking system A locking system that consists of two locking mechanisms protected by a dl resistive shutter plate. The shutter plate can be rotated to expose a first lock which when unlocked allows it to be further rotated to uncover the second lock. Upon unlocking the... | 05/13/1986 |
| 4562706 | Mechanical relocker for locking bolts A torsion spring longitudinally rotates a locking bolt when the bolt actung linkage is severed. A woodruff key or the like is upstanding from a surface of the bolt. When the linkage is undamaged, the key slides with the bolt through a slot on the lock fr... | 01/07/1986 |
| 4537434 | Adjustable self-releasing hook A load lowering hook is equipped with a spring biased load holding member ich ejects and disengages the load rigging when the load touches down and the majority of the weight is released. The spring loaded member can be adjusted to disengage the load at a... | 08/27/1985 |
| 4531299 | Analog inclination data system A means for taking roller paths inclination data as part of a weapon system lignment sequence. An accelerometer sensor sends out a DC signal representative of tilt. This signal is amplified and fed to a difference amplifier where a reference signal from a ... | 07/30/1985 |
| 4531128 | Buoyant radar reflector A radar reflective target consisting of a cluster of square corner reflecs configured in a cubical shape. The reflector is comprised of eight smaller blocks of lightweight radar-transparent material, such as plastic foam, with planar reflective surfaces,... | 07/23/1985 |
| 4445733 | Grounding ring for shielded cable The device uses a grounding ring, having both an outer and an inner ring element combination, which is placed about a shielded cable to be grounded. The inner ring has a multitude of grounding spikes cammed to move in a radially inward direction in respon... | 05/01/1984 |
| 4415900 | Cavity/microstrip multi-mode antenna A microstrip backfire antenna configuration combining the microstrip type tenna element with a waveguide cavity which provides control over the radiation pattern and obviates the need for a more expensive phased array antenna system; the microstrip elemen... | 11/15/1983 |
| 4404244 | System for rapid repair of damaged airfield runways A membrane of fiberglass-reinforced polyester resin is used as a traffica cover over a compacted backfilled crater and crushed stone base to impart strength to the repair and prevent foreign object damage to aircraft. The membrane cover is usually prefab... | 09/13/1983 |
| 4397255 | Anchor holding capacity augmentation system A series of spaced in-line plates attached to a through wire, rope or chain ooring line is placed between an anchor and the main mooring line to enhance overall mooring capability of an installed anchor of any of a variety of types including stake piles, p... | 08/09/1983 |
| 4388584 | Battery monitoring and charger control system A battery cell controlled charging system, consisting of a display unit, battery cell probes, a battery charger and circuitry for controlling the charger, monitors the specific gravity, electrolyte level and temperature control of each cell in a multi-cel... | 06/14/1983 |
| 4377509 | Packaging for ocean disposal of low-level radioactive waste material A packaging system for storage of containers of low-level radioactive waste consisting of a concrete shell structure that houses the containers and a dry filler material that surrounds them. Void volume in the filler material is saturated with water, and ... | 03/22/1983 |
| 4367845 | Automatic temperature control system for diver heating system In a diver heating system of the type in which a fluid being circulated in he circulation passage of the diver's clothing is heated by the controlled combustion of a reducing metal in an oxygen atmosphere, a temperature control system in which a gas flow c... | 01/11/1983 |
| 4356788 | Deepwater propellant embedded anchor having emergency release mechanism A deepwater propellant embedded anchor system having emergency release menism for separating an anchor fluke assembly from the gun assembly. In an emergency, a sear pin is rotated by a lever and release line to disengage the fluke assembly, thus allowing... | 11/02/1982 |
| 4339930 | Control system for solar-assisted heat pump system A control system for a solar-assisted heating and cooling system including solar collector system, a thermal storage system, a water-to-air heat pump, a water-to-air heat exchanger, a domestic water heater, and a cooling tower. The preferred embodiment of... | 07/20/1982 |
| 4332240 | Solar-energy-powered sun tracker Apparatus for following the sun using the sun's radiant energy to heat a fluid-containing sensor to create a pressure which is used to rotate the apparatus against a spring force provided by an expansion bellows. The sunlight is permitted to strike the se... | 06/01/1982 |
| 4328736 | Fuseless explosive propellant cartridge An explosive propellant cartridge for use in propellant-actuated devices. e cartridge contains only the explosive propellant which is stable and safe when not confined in a vessel capable of high pressure containment and does not contain the less stable f... | 05/11/1982 |
| 4329406 | Specific gravity transducer and battery performance indicator A transducer and battery performance indicator which senses various levels of specific gravity and other conditions of a liquid or electrolyte of varying degrees of translucency and converts the measurements into electrical analog signals which are fed to... | 05/11/1982 |
| 4326203 | Corner fed electric non rectangular microstrip dipole antennas A corner fed electric microstrip dipole antenna consisting of a thin eleccally conducting, four-sided non-rectangular shaped radiating element having two opposite sides parallel formed on one surface of a dielectric substrate, the ground plane being on t... | 04/20/1982 |
| 4299699 | Backwashable helical-media coalescer A coalescing/filtration media composed of yarn-like material held together during normal operation but loosened during backwash to allow "strumming" or vibrating to help loosen media-clogging material, and an armature arrangement by which a cylindrical as... | 11/10/1981 |
| 4299431 | Underwater-mateable electrical connector In an underwater-mateable connector system of the vented pin-and-socket t, the socket electrical contact system is composed of a contact ring cooperating with a contact band, the contact band being integrally provided with a multiplicity of resiliently d... | 11/10/1981 |
| 4290382 | Connector receiver for pontoon causeways In a system for interconnecting buoyant float sections in an articulated manner, a receiver assembly for automatically engaging a connector of a type having a longitudinally inclined nose section and a pair of transverse locking grooves. The receiver asse... | 09/22/1981 |
| 4287519 | Multi-mode Luneberg lens antenna An antenna system having a multiple of antenna feeds to drive a microwave ns, composed primarily of a Luneberg lens and a metallic ground plane upon which are mounted three antenna feeds and a shorted stub (or four bent-stub coaxial feeds). The antenna sy... | 09/01/1981 |
| 4284951 | Battery electrolyte level sensor Apparatus for indicating the level of the electrolyte in a battery cell. A three-electrode sensor probe having the electrodes partially embedded in an electrically insulating housing suspended in the electrolyte so that a portion of the probe is immersed ... | 08/18/1981 |
| 4283114 | Fiber optic light valve A mechanically actuated, piezoelectrically powered, fiber optic connected ght valve (shutter) utilized as a sensor to detect mechanical motion (pressure) or displacement. A piezoelectric element responds to pressure to generate an electrical signal which ... | 08/11/1981 |
| 4278976 | Remote sensing device A system for battlefield and enemy support area surveillance. An air-drop unit monitors and records on tape enemy activity, and plays back and transmits the monitored data at high speed when interrogated by a coded signal from friendly aircraft.... | 07/14/1981 |
| 4276958 | Personnel chain climber Apparatus for use as a chain climbing device or a chain racheting device ludes a pair of spring-closed opposing cams disposed in a rigid structure which supports a pair of cam pins, each of which extends through an elongated aperture in one of the cams. ... | 07/07/1981 |
| 4266889 | System for placing freshly mixed concrete on the seafloor A means for placing freshly mixed concrete on the ocean floor at great des. A pipeline is grossly positioned by a ship whereas the position of the submerged end is controlled by guide wires, water jets, props, etc. The discharge device at the end of the ... | 05/12/1981 |
| 4264311 | Dynamic parachute four-line release simulator A dynamic parachute four-line release simulator device which allows aircren to practice the steps necessary to assure a safe parachute descent and landing following emergency aircraft egress. The device is suspended at a desired height adjacent a raised ... | 04/28/1981 |
| 4262654 | Solar-energy-powered sun tracker Apparatus for following the sun using the sun's radiant energy to heat a fluid-containing sensor to create a pressure which is used to rotate the apparatus against a spring force provided by an expansion bellows. The sunlight is permitted to strike the se... | 04/21/1981 |
| 4257721 | System for placement of piles into the seafloor A system for placing piles into the seafloor by using pressure differential as the driving force. The pressure differential is created by a pump unit located either within or external to the pile. Operation of the pump unit which displaces both water and ... | 03/24/1981 |
| 4234044 | Chemical agent injection system for fire fighting equipment A fire fighting pump apparatus adapted for remote control wherein a chemi additive is injected into the system and utilized in conjunction with water. The device is provided with an automatic self-cleaning circuit wherein water can circulate through the ... | 11/18/1980 |
| 4219817 | Protection device for pulsed radar A protection device for a pulsed radar system which generates a random pu train whose pulse spacing is kept between a predetermined maximum and minimum. A jitter coder alters the periodic timing of the clock pulses fed to the radar modulation circuit by ... | 08/26/1980 |
| 4211502 | Breakaway pin release A pin release assembly in which a release pin and a pull pin have mating tions which interlock within a fixed collar. The interlocking surfaces of the mating portions are oriented parallel to or normal to the longitudinal axis of the pins so that no fric... | 07/08/1980 |
| 4208979 | Pontoon spudwell system A spudwell cooperating with a pipe pile and a jacking mechanism for elevag a pontoon section above a body of water. The spudwell straddles the pipe pile through a pair of vertically aligned apertures through which the pipe pile extends. A plurality of pi... | 06/24/1980 |
| 4179583 | Electro-mechanical low backlash cable connector An electro-mechanical, low backlash cable connector having a plurality of ring washers disposed within a connector housing. A plurality of spacer washers disposed between each pair of spring washers imparts independent operation to each spring washer and ... | 12/18/1979 |
| 4178594 | Angle servo preamplifier An angle servo preamplifier for use in the tracking antenna servo drive sem of a precision tracking radar system. The angle servo preamplifier processes tracking error signals indicative of tracking antenna pointing errors with respect to a target. The p... | 12/11/1979 |
