Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 4826168 | Interchangeable and adjustable golf club grip A golf club, especially a putter, has a grip portion with a shaft-receiving chamber having a cross-sectional dimension to enable the grip to be freely rotatable around the shaft. The grip is fastened to the shaft by means of an axial locking mechanism mou... | 05/02/1989 |
| 4817950 | Video game control unit and attitude sensor A surfing video game in which a surfing figure on a monitor moves over simulated waves to gain playing rewards is controlled by a foot-actuated surfboard simulator. The simulator has a horizontally mounted elongate surfboard having a suspension system con... | 04/04/1989 |
| 4804149 | Toilet paper dispenser A toilet paper dispenser has a housing having flat side walls and a U-shaped front wall forming an interior roll containing chamber. Paper on the roll threads through an opening at the front of the housing. A spool which journals through the toilet paper ... | 02/14/1989 |
| 4795305 | Cable operated loader apparatus A portable bucket loader attachment can be operated by a conventional garden tractor or pickup truck. The loader has a wheel mounted frame having a forwardly extending boom carrying a bucket rotationally mounted at the end of the boom. A rotational contro... | 01/03/1989 |
| 4789399 | Pressurized roller pens and inks for such pens A pressurized roller pen includes a thixotropic viscoelastic ink that is a gel at rest, but becomes a thin liquid under the shearing action of the pen's revolving ball-point. This ink includes a polyacrylic resin polymer, at least one highly polar solvent... | 12/06/1988 |
| 4765911 | Process for treating municipal wastewater sludge An improved process for treating aerobic or anaerobic sewage sludge comprises a two-stage treatment with sulfur dioxides. In the first stage, between 25 and 40 pounds of sulfur dioxide per ton of dry sludge solids as reacted to optimize solids separation ... | 08/23/1988 |
| 4748921 | Method for removing flammable hazardous liquid waste from soils A method of removing hazardous flammable hydrocarbons from soils comprises introducing the contaminated soil into a rotatable drum open at only one end, introducing flame and hot gases of combustion in the drum while rotating it to substantially expose th... | 06/07/1988 |
| 4736736 | Cervical traction assembly having head cradle with occipital shelf An improved cervical traction apparatus comprises a cradle including a bowl-shaped cranial cavity for supporting the head of a user and an occipital shelf support comprising a concave wall extending across the cradle. The cradle is secured on a base assem... | 04/12/1988 |
| 4732417 | Door handle A C-shaped door handle for replacing a conventional rotatable doorknob has mounting brackets at each end for attaching to a flat surface and a drive shaft adapted to engage a conventional latch-operating mechanism. The handle has an internal pivoted grip ... | 03/22/1988 |
| 4729132 | Sports helmet A sports helmet has a resilient, cushioned lining in the interior having at least one pocket in a rear portion containing an air-activated heat-generating element. The helmet is fabricated with an adjustable interior lining having a plurality of pieces wh... | 03/08/1988 |
| 4727869 | Method and apparatus for immobilizing an eyelid An eyelid splint is provided for comfortably immobilizing the lid of an injured or diseased eye. The splint consists of a soft, resilient pad, preferably of synthetic foam having a thickness of at least 7 mm, having a backing which is attached to two elas... | 03/01/1988 |
| 4727390 | Camera mounting bracket A camera mounting and steadying device for reducing or eliminating undesired movements of a hand-held camera consisting of a main support handle member with hand grips formed into each end of the frame. A camera mounting base is located at one end of the ... | 02/23/1988 |
| 4725278 | Intraocular lens An improved intraocular lens comprises a plurality of lens segments secured in a flexible and distortable frame member whereby the lens may be temporarily folded for insertion into the eye through a relatively small corneal incision. The preferred lens se... | 02/16/1988 |
| 4709689 | Solar heat exchange system A solar heat exchange system is fabricated from a manifold and a plurality of elastomeric tubular elements which are longitudinally connected into a mat. A one-piece molded plastic manifold having at least six parallel aligned radially extending nipples i... | 12/01/1987 |
| 4704124 | Intraocular lens An improved intraocular lens comprises a plurality of lens segments secured in a flexible and distortable frame member whereby the lens may be temporarily folded for insertion into the eye through a relatively small corneal incision. The preferred lens se... | 11/03/1987 |
| 4688520 | Automatic animal feeder and water dispenser A device for automatically dispensing animal food at predetermined times and in variable quantities comprises a hopper having a motorized feed auger that is actuated by a timer. The auger dispenses feed to a chute which terminates in a feed bin integral w... | 08/25/1987 |
| 4689253 | Phonograph record conditioner A method of conditioning a phonograph record comprises applying a very thin film thereto of a tallow-derived quaternary ammonium salt, especially a salt selected from the group consisting of trimethyltallow ammonium chloride, dimethylditallow ammonium chl... | 08/25/1987 |
| 4688140 | Electronic defensive weapon In an electronic stun gun device comprising a pair of contact probes exposed on opposite sides at the top of a case and a pair of test gap probes extending into a cavity separating the contact probes, the improvement comprises a test gap probe guard means... | 08/18/1987 |
| 4677974 | Method and apparatus for immobilizing an eyelid An eyelid splint is provided for comfortably immobilizing the lid of an injured or diseased eye. The splint consists of a soft, resilient pad, preferably of synthetic foam having a thickness of at least 7 mm, having a backing which is attached to two elas... | 07/07/1987 |
| 4657546 | Intraocular lens An improved intraocular lens comprises a plurality of lens segments secured in a flexible and distortable frame member whereby the lens may be temporarily folded for insertion into the eye through a relatively small corneal incision. The preferred lens se... | 04/14/1987 |
| 4656932 | Coffee filter ring A device for securing a coffee filter in a coffee maker basket comprises a contractable annular member expandable for urging the coffee filter against the inner side of the basket to prevent coffee grounds from slipping between the filter and the side of ... | 04/14/1987 |
| 4633856 | Percussor subassembly for generating gas bursts An improved percussor assembly comprises a rigid body member having gas inlet and gas outlet means, the latter including a restricted passageway and an enlarged passageway, and a vent passageway communicating with the enlarged portion adjacent the junctio... | 01/06/1987 |
| 4627860 | Oxygen concentrator and test apparatus An improved oxygen concentrator assembly includes a microprocessor and cooperating means for monitoring or sensing functions and performance of various components of the concentrator. A test apparatus having means for selecting any of the functions monito... | 12/09/1986 |
| 4616104 | Fire resistant electrical junction boxes An electrical box designed to minimize the potential for sound, smoke or fire traveling therethrough when wall-mounted and has an interior rigid housing and a molded non-combustible exterior casing. The casing is a unitary, single-piece sheathing, having ... | 10/07/1986 |
| 4604987 | Heated stadium cushion A heated stadium cushion has a pad having a pocket adapted to contain an air-activated chemical heating packet. A second pocket contains weather-resistant clothing, such as a poncho. In another embodiment a slipcover is provided for enclosing a convention... | 08/12/1986 |
| 4605245 | Self-adjusting book cover A flexible, transparent plastic book cover has a pocket portion attached to the front cover portion containing various pages or a booklet containing emergency medical information. The book cover is particularly adapted to fit telephone directories of any ... | 08/12/1986 |
| 4588129 | Nebulizer An improved nebulizer for directing an aerosol from a spray orifice toward an outlet pipe against a target comprises a convex target surface substantially enlarged relative to the diameter of the spray orifice and a cylindrical hood coaxially surrounding ... | 05/13/1986 |
| 4566441 | Percussor subassembly for generating gas bursts An improved percussor assembly comprises a rigid body member having gas inlet and gas outlet means, the latter including a restricted passageway and an enlarged passageway, and a vent passageway communicating with the enlarged portion adjacent the junctio... | 01/28/1986 |
| 4561287 | Oxygen concentrator An oxygen concentrator having molecular sieve beds for selectively adsorbing nitrogen from atmospheric air for increasing the oxygen concentration of a product gas, a reservoir for receiving the product gas, a compressor for charging atmospheric air to th... | 12/31/1985 |
| 4555182 | Apparatus and method for recycling asphaltic concrete An improved process for recycling asphaltic concrete comprises introducing asphaltic concrete particles at one end of an elongated rotating drum while supplying flame and hot gases of combustion to the drum at the opposite end, and introducing virgin aggr... | 11/26/1985 |
| 4552656 | Purified water storage system A purified water storage system for a reverse osmosis purification unit has a container containing an interior chamber defined in part by a flexible wall member, such as a bladder or diaphragm, for receiving and containing purified water. A second chamber... | 11/12/1985 |
| 4523664 | Safety descent device A portable descent device for lowering an object at a controlled speed has a rotating spool carrying wrapped cable mounted within a casing. The spool rotates about a fixed shaft in a sealed chamber containing a viscous liquid. A series of alternating, clo... | 06/18/1985 |
| 4522498 | Asphaltic concrete recycle apparatus and method An apparatus for recycling asphaltic concrete comprises an elongated rotatable drum in which composition is introduced at a first end and recovered at the opposite second end, and having a burner extending into the drum so that the burner nozzle is locate... | 06/11/1985 |
| 4520590 | Tree brace system A tree brace unit for maintaining young trees in an upright posture has a circular ground-mounted base and a plurality of legs extending upwardly therefrom to a collar which encircles the tree trunk at an elevated level. The brace portion is formed from a... | 06/04/1985 |
| 4518001 | Coin handling apparatus In an improved coin handling apparatus including a hopper payout assembly, an improved device for delivering coins from the hopper to a coin tray comprises an elongated duct for receiving a stack of coins of a given denomination in single edge-to-edge rel... | 05/21/1985 |
| 4517558 | Three dimensional video screen display effect A three dimensional visual effect of rotating mechanical reels is given to a two dimensional display on a video screen by using a film having a continuous tone gradient from dark to light, the darkest portions extending along the upper and lower edges of ... | 05/14/1985 |
| 4516424 | Oxygen concentrator monitor and regulation assembly An improved oxygen concentrator includes an oxygen sensor, valve and timer for periodically directing a breathable gaseous mixture having increased oxygen concentration to the sensor. A preferred assembly includes an alarm and means for increasing oxygen ... | 05/14/1985 |
| 4512286 | Pet seat for automobiles A container for small pets mounts on the seat of a vehicle and contains a harness for securing the pet in the container which is fastened to the container by a short leash. The container has a hinged front wall which is movable to a plurality of positions... | 04/23/1985 |
| 4510187 | Method for conditioning phonograph records A method of conditioning a phonograph record comprises applying a very thin film thereto of a quaternary ammonium salt having at least one long hydrocarbon chain. Preferred compositions have the formula ##STR1## wherein R1 is a hydrocarbon... | 04/09/1985 |
| 4504149 | Closed end drum asphaltic concrete recycle apparatus and method Apparatus for recycling asphaltic concrete comprises an elongated drum having a first, open end, through which hot gases of combustion are directed and product is concurrently recovered, and a second, opposite end, through which composition to be treated ... | 03/12/1985 |
