"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 4637447 | Sun shield 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.... | 01/20/1987 |
| 4635773 | Non-backdriveable free wheeling coupling 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 f... | 01/13/1987 |
| 4635663 | Self-contained, single-use hose and tubing cleaning module 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 cl... | 01/13/1987 |
| 4615637 | Foldable self-erecting joint A self-erecting joint for a pair of hinged, tubular members in which the hinging is located at corresponding portions of the members and the opposite edge portions are connected by spring-biased toggle links which in the unfolded position of the members a... | 10/07/1986 |
| 4591838 | Spillage detector for liquid chromatography systems A spillage detector device for use in conjunction with fractionation of liquid chromatography systems which includes a spillage receiving enclosure (34) beneath the fractionation area. A sensing device (36) having a plurality of electrodes (46) of alterna... | 05/27/1986 |
| 4584887 | Solid sorbent air sampler A fluid sampler for collecting a plurality of discrete samples over separate time intervals. The sampler comprises a sample assembly having an inlet and a plurality of discreet sample tubes each of which has inlet and outlet sides. A multiport dual acting... | 04/29/1986 |
| 4583587 | Multi-leg heat pipe evaporator A monogroove high capacity heat pipe has compact evaporator section 30 formed of a plurality of parallel legs 32 which are in fluid communication with a manifold 36 which is in fluid communication with the condensor section 40 encased in a heat radiating ... | 04/22/1986 |
| 4579302 | Shuttle-launch triangular space station A triangular space station deployable in orbit. The framework is comprised of three trusses, formed of a pair of generally planar faces comprised of foldable struts which expand and lock into rigid structural engagement forming a repetition of equilateral... | 04/01/1986 |
| 4561784 | Device and method for frictionally testing materials for ignitability Test apparatus for determining ignition characteristics of various metal in oxidizer environments simulating operating conditions for materials, the test apparatus has a chamber (6) through which the oxidizing agent flows, and means for mounting a station... | 12/31/1985 |
| 4557149 | Portable 90 degree proof loading device A hydraulically actuated device for applying a test load to a bearing or the like to prove the integrity of its mounting or staking within a bore in a housing such as a gear case or the like. To accommodate limited access situations the device is construc... | 12/10/1985 |
| 4523741 | Linear motion valve A linear motion valve is provided. The valve spool employs magnetically permeable rings, spaced apart axially, which engage a sealing assembly having magnetically permeable pole pieces in magnetic relationship with a magnet. The gap between the ring and t... | 06/18/1985 |
| 4522469 | Liquid crystal light valve structures An improved photosensor film and liquid crystal light valves embodying said film is provided. The photosensor film and liquid crystal light valve is characterized by a significant lower image retention time while maintaining acceptable photosensitivity. T... | 06/11/1985 |
| 4521077 | Light transmitting window assembly This invention provides a light transmitting assembly that can, at will, be changed from a state of transparency to one of translucency. It comprises two parallel spaced apart panes of transparent material, such as glass, with a film of polytetrafluoroeth... | 06/04/1985 |
| 4519545 | Spray applicator for spraying coatings and other fluids in space The object of the invention is to provide a self-contained spray applicator for one handed operation in a zero gravity vacuum environment by a free-flying astronaut not attached to any spacecraft while avoiding contamination of the operator by back spray.... | 05/28/1985 |
| 4515207 | Monogroove heat pipe design: insulated liquid channel with bridging wick A screen mesh artery (50) supported concentrically within the evaporator section (20) of a heat pipe liquid channel (27) retains liquid (41) in the channel (27) and thereby assures continued and uniform liquid feed to the heat pipe evaporation section (20... | 05/07/1985 |
| 4512678 | Slide release mechanism A releasable support device comprising a hollow body (A) with a sleeve (B) extending transversely therethrough for receiving the end of a support shank (E). A slider-latch (C), optionally lubricated, extends through side recesses (23) in the sleeve to str... | 04/23/1985 |
| 4509548 | Reactant pressure differential control for fuel cell gases A pair of spool valves C and D connected in tandem are balanced between pressures of reactant gases supplied to a fuel cell power plant G to control the pressure differences between the gases so as to maintain those pressures substantially in the proporti... | 04/09/1985 |
| 4488663 | Self-charging metering and dispensing device for fluids A novel self-metering and dispensing device for fluids obtained from a pressurized fluid supply is provided. Tubing and valving means permit the introduction of fluid into and discharge from a closed cylindrical reservoir. The reservoir contains a slideab... | 12/18/1984 |
| 4483639 | Connection system A mechanical connection system comprises a first body 10 defining a receptacle 38 and a second body 12 defining a pin 24 matingly receivable in said receptacle 38 by relative movement in a first directional mode. A primary latch 64 is engagable between th... | 11/20/1984 |
| 4483512 | Slow opening valve A valve control having a valve body (5) with an actuator stem (16) and a rotating handle (35) connected to the actuator stem by differential drive mechanism (25, 26) which, during uniform movement of the handle in one direction, initially opens the valve ... | 11/20/1984 |
| 4454611 | Heat resistant protective hand covering A heat-resistant, protective glove having a shell made of a fabric of a temperature-resistant aromatic polyamide fiber, the outer surface of the shell being coated with a fire-resistant elastomer and a liner, generally conforming and secured to the shell ... | 06/19/1984 |
| 4439968 | Pre-stressed thermal protection systems A hexagonal protective and high temperature resistant system for the Space Shuttle Orbiter consists of a multiplicity of pockets formed by hexagonally oriented spacer bars 11 secured ot the vehicle substructure 12, a packing of low density insulating batt... | 04/03/1984 |
| 4433439 | Heat resistant protective hand covering A heat-resistant protective glove having first and second shells which generally define the palm side and backside of the glove, respectively, each of the shell sections being made of a temperature-resistant aromatic polyamide fiber, the first shell secti... | 02/28/1984 |
| 4431333 | Apparatus for releasably connecting first and second objects in predetermined space relationship Apparatus is disclosed for releasably connecting first and second space objects, such as a spacecraft and a space vehicle, in predetermined spaced relationship. The apparatus comprises at least one probe member (10) mounted on the first object (1), having... | 02/14/1984 |
| 4421109 | Method and apparatus for simulating gravitational forces on a living organism A method and apparatus for simulating gravitational forces on a living organism wherein a series of negative pressures are externally applied to successive lengthwise sections of a lower limb of the organism, the pressures decreasing progressively with di... | 12/20/1983 |
| 4411660 | Absorbent product and articles made therefrom A multi-layer absorbent product (10) for use in contact with the skin to absorb fluids, the product having a water pervious facing layer (12) for contacting the skin, a first fibrous wicking layer (14) overlaying the water pervious layer, a first containe... | 10/25/1983 |
| 4407165 | Apparatus for accurately preloading auger attachment means for frangible protective material Apparatus for preloading a spring loaded threaded member. The apparatus is formed of three telescoping tubes. The innermost tube has means to prevent rotation of the threaded member. The middle tube is threadedly engaged with the threaded member and by ax... | 10/04/1983 |
| 4406256 | Automatic compression adjusting mechanism for internal combustion engines Means for controlling the compression pressure in an internal combustion engine having one or more cylinders and subject to widely varying power output requirements. Received between each crank pin (C) and connecting rod (D) is an eccentric sleeve (F) sel... | 09/27/1983 |
| 4395511 | Heat sealable, flame and abrasion resistant coated fabric Flame retardant, abrasion resistant elastomeric compositions comprised of thermoplastic polyurethane polymer and flame retarding amounts of a filler selected from decabromodiphenyloxide and antimony oxide in a 3:1 weight ratio, and decabromodiphenyloxide,... | 07/26/1983 |
| 4392874 | Degassifying and mixing apparatus for liquids A liquid degassifier including a containment vessel (10), a liquid pump (16) and a header assembly (12) within the containment vessel (10) in a volume above the reservoir (11a) of liquid therein. The pump (16) draws from this reservoir and outputs to the ... | 07/12/1983 |
| 4384578 | Bio-medical flow sensor A bio-medical flow sensor (FIG. 1) including a packageable unit of a bottle (10), tubing (11) and hypodermic needle (12) which can be pre-sterilized and is disposable. The tubing (11) has spaced apart tubular metal segments (18,19). The temperature of the... | 05/24/1983 |
| 4383533 | Apparatus for determining changes in limb volume Measuring apparatus for determining changes in the volume of limbs or other body extremities by determining the cross-sectional area of such limbs may comprise a transmitter (10) including first and second transducers (11, 12) for positioning on the surfa... | 05/17/1983 |
| 4377089 | Compression test apparatus Apparatus for compressive testing of a test specimen may comprise vertically spaced upper and lower platen members (1 and 2) between which a test specimen (T) may be placed. The platen members are supported by a fixed support assembly (3, 5, and 6). A loa... | 03/22/1983 |
| 4375674 | Kinesimetric method and apparatus Disclosed are apparatus and method for the determination of functional capability of bodies. Reach as well as velocity, acceleration and force generation at various positions may be determined for a body by a three dimensional kinesimeter equipped with an... | 03/01/1983 |
| 4360325 | Gas-to-hydraulic power converter A gas piston driven hydraulic piston pump in which the gas cycle is of high efficiency by injecting the gas in slugs at the beginning of each power stroke. The hydraulic piston (40) is disposed to operate inside the gas piston (30), and the two pistons, b... | 11/23/1982 |
| 4358480 | Method of repairing surface damage to porous refractory substrates A method of repairing damage to a porous refractory material coated with a glass coating (16) comprising applying hydrolyzed tetraethyl orthosilicate to the damaged area, curing said tetraethyl orthosilicate, applying to said damaged area a pliable filler... | 11/09/1982 |
| 4358486 | Densification of porous refractory substrates A hydrolyzed tetraethyl orthosilicate is applied to the surface of a porous refractory substrate following which the substrate is heated to a temperature and for a period of time sufficient to bond the silica released from the tetraethyl orthosilicate to ... | 11/09/1982 |
| 4341925 | Random digital encryption secure communication system A new and improved secure communication system is provided. A product code, formed from two pseudorandom sequences of digital bits, is used to encipher or scramble data prior to transmission. The two pseudorandom sequences are periodically changed at inte... | 07/27/1982 |
| 4338516 | Optical crystal temperature gauge with fiber optic connections An optical temperature gauge using a semiconductor crystal (12) having a band-edge shift property which is temperature dependent. An external narrow band light source (10) provides optical excitation through an optical fiber (11) and light energy thus pas... | 07/06/1982 |
| 4338371 | Absorbent product to absorb fluids A multi-layer absorbent product (10) for use in contact with the skin to absorb fluids, the product having a water pervious facing layer (12) for contacting the skin, a first fibrous wicking layer (14) overlaying the water pervious layer, a first containe... | 07/06/1982 |