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"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 4007494 | Bone cap A cap for covering the exposed end of an excised bone including a head adapted to abut the exposed end. The outer surface of the head is free from sharp corners, at least the portion of the head adjacent to the exposed bone end being interspersed with a n... | 02/15/1977 |
| 4007495 | Patello-femoral prothesis A patello-femoral prosthesis comprising a patellar prosthesis and a femoral prosthesis which are connected to each other for relative sliding movement. The connecting means comprises a keyhole shaped slot formed in one prosthesis, and a complementarily fo... | 02/15/1977 |
| 4007496 | Connection between a cosmetic cover and a prosthetic part A connection means between a part of a skeletal prosthesis such as a foot or hand and a cosmetic cover. A connecting link is fastened to the open front end of the cover with the surface of the connecting link extending transversely across the front end of... | 02/15/1977 |
| 4007497 | Artificial foot with ankle joint An artificial foot and ankle joint including a foot part having a plastic impregnated upper surface portion, an ankle part having a lower plastic impregnated articulation surface and a bifurcated joint connecting the two. The bifurcated joint has a lower ... | 02/15/1977 |
| 4007498 | Toilet ventilator including overflow-responsive sensor A ventilator for toilets is disclosed which includes an air duct to receive and remove the odorous air, an air suction device to establish the odorous air flow, a control for initiating and terminating the odorous air flow, and a sensor responsive to the ... | 02/15/1977 |
| 4007499 | Commode flushing control apparatus Control apparatus used in connection with commodes automatically moves a trip lever for flushing the commode and includes a member adapted to be connected to the trip lever for moving between an initial position and a flushing position to cause the trip l... | 02/15/1977 |
| 4007500 | Bathtub stopper A bathtub stopper for closing the drain passage of a strainer cup of a bathtub according to the present invention consists of a main body portion which has first and second components adapted to telescope longitudinally with respect to one another between... | 02/15/1977 |
| 4007501 | Bed having a bed pan A bed for a patient having a bed pan mounting recess bored at its central position wherein a bed pan is supported at a level in conformity with a degree of depression of the periphery of said recess such that the buttocks of a patient never strongly touch... | 02/15/1977 |
| 4007502 | Bed frame assembly Caster wheel supports for a bed frame comprising a pair of interlocking components in which male and female elements are provided on the cross and side frame members respectively for detachably securing them to one another, these elements being inclined a... | 02/15/1977 |
| 4007503 | Pillow and case of physiologically advantageous shape A pillow case comprising first and second walls of flexible material each having a shape symmetrical about is center line. The center of the pillow case is narrower than the ends to form a generally butterfly shape.... | 02/15/1977 |
| 4007504 | Hive entryway A bee hive having a body having an interior which is open to access by bees via a hive entryway, said entryway having means for removably retaining a control element for control of bee activity in the entryway. The hive entryway includes an outside openin... | 02/15/1977 |
| 4007505 | Flexible stabilizer for underwater vehicle A stabilizing drag and spin inducing device is described for an instrumen underwater vehicle. A flexible plastic disc having a central aperture and segmented into angularly offset vanes is pressed onto the vehicle probe section with resulting distortion ... | 02/15/1977 |
| 4007506 | Swim fin A swim fin having a foot portion and a blade portion. The blade portion includes a plurality of transversely spaced longitudinally extending ribs that are connected to each other by a web member. The ribs are comprised of a plurality of elongated flexible... | 02/15/1977 |
| 4007507 | Bridge composed of individual sections assembled by means of an assembling unit A bridge composed of individual sections is assembled by means of an assembling unit whose support elements comprise two lateral beams, preferably lattice girders. The assembling unit includes a main cross beam which is bolted to the end of one of two adj... | 02/15/1977 |
| 4007508 | Manual floor sweeper Herein disclosed is a manual floor sweeper including a casing, a pair of front and a pair of rear wheels and a pair of roll brush brooms juxtaposed longitudinally in parallel with each other in a manner to rotate inwardly in response to the rotation of th... | 02/15/1977 |
| 4007509 | Blackboard eraser Blackboard eraser having a handle made of foamed plastic. Discreet rows of fiberglass filaments for cleaning off the chalk are secured to the bottom of the handle. Channels between the rows collect dust during the erasing operation so that the fibers don'... | 02/15/1977 |
| 4007510 | Brush head A carpet care tool beautifies, fluffs and cleans carpet fibers by brushing its relatively short, densely disposed and uniformly slanted filaments against the carpet fibers in one direction as the tool is drawn in a sweeping stroke in pressing engagement w... | 02/15/1977 |
| 4007511 | Vehicle windshield wiper blade assemblies A superstructure for a windshield wiper blade assembly includes a pair of primary levers connected together by a spring hinge which urges the outer ends of the levers toward the superstructure. A third lever is pivoted at the transverse hinged axis. The p... | 02/15/1977 |
| 4007512 | Retractable luggage roller assembly A retractable roller assembly for luggage and the like which has a casing adapted to be secured to the luggage having an elongated opening on a lower edge. The side walls of the casing have a pair of aligned circular sockets which fittedly and rotatably r... | 02/15/1977 |
| 4007513 | Single-pivot hinge A hinge for a flush-type door comprising a plate member which has two integral, elongate, generally flat and mutually perpendicular portions and adapted for mounting to the door so that a first of the portions abuts the door edge and the other portion abu... | 02/15/1977 |
| 4007514 | Fixed hinge fitting A hinge mounting device for use with conventional doors or furniture doors may be easily mounted and adjustably positioned on the door frame or cabinet. The device includes a base plate which is attached to the furniture or door frame and a hinge fitting ... | 02/15/1977 |
| 4007515 | Garment fastener A two-part detachable fastener for use as a button of a garment. The male member is formed of an inverted U-shaped pin which snaps into a restricted opening of a cap-like female member so as to fasten to one or more layers of a garment held between the ma... | 02/15/1977 |
| 4007516 | Quarter turn locking fastener device A quarter turn locking fastener device consisting of a socket part adapted to snap engage into an apertured chassis and to support an apertured panel spaced apart from the chassis, and a complemental stud part adapted for selected locking and unlocking en... | 02/15/1977 |
| 4007517 | Heat treatment of textile fabric prior to wet processing Effective bulking or shrinking of textile fabric prior to wet processing is obtained by recirculating the textile fabric in continuous loop form under an aspirating influence induced with an inert gas while applying heat to the fabric for such bulking or ... | 02/15/1977 |
| 4007518 | Steam supply apparatus Steam which is free of condensate is supplied to a fluid jet yarn texturing device. The steam is obtained by passing saturated steam through a condensate separator and then through a superheater. The amount of heat supplied by the superheater is regulated... | 02/15/1977 |
| 4007519 | Indicating device for yarn crimping wheel teeth spacing adjustment In synthetic yarn texturing using crimping wheels, an indicating device is provided to aid in adjusting the peripheral spacing between the teeth of the wheels.... | 02/15/1977 |
| 4007520 | Process for the production of an electric stack or layer capacitor In a process of producing capacitors, synthetic dielectric layers carrying metal layers thereon are wound, in a stretched condition, about a drum to form a mother capacitor. Individual capacitors are then formed from the mother capacitor by sawing, with a... | 02/15/1977 |
| 4007521 | Automatic precision working tool This invention relates to an automatic precision apparatus which includes an elongated rotatable central shaft concentric with and encased by a fixed outer cylinder. A rotary workpiece table is fixed to the central shaft adjacent one end of the central sh... | 02/15/1977 |
| 4007522 | Controlled deflection roll assembly At least one pressure applying member is disposed within a slot extending lengthwise along a stationary shaft about which is journaled an outer roll shell. Slidable spacer blocks also disposed in said slot locate each pressure applying member along the sl... | 02/15/1977 |
| 4007523 | B-X cable pliers A device for cutting B-X cable has a pair of pivotally interconnected operating members, each of which defines cutting jaws, with one of the operating members having a bifurcated end portion that defines a pair of spaced cutting jaws receiving therebetwee... | 02/15/1977 |
| 4007524 | Cast articulated tool An articulated cutting tool, such as scissors, is formed by casting a first element with a pivot region, and casting a second element using the pivot region of the first element as the mold for the pivot region of the second element. The pivot regions of ... | 02/15/1977 |
| 4007525 | Spool for a vegetation cutting apparatus having a flexible line cutting element A spool secured by adjustable fastening means within a rotatable member of a vegetation cutter is designed to facilitate adjustment in the length of a flexible line extending from the spool through an opening in the member. The spool includes a first flan... | 02/15/1977 |
| 4007526 | Lawn-edge trimmer with detachable handle A lawn-edge trimmer with a grip at the top of a motor housing, a shield plate at the bottom of that housing overlying a rotor, and a detachable mounting forming a socket for a long-stemmed handle has a motor-control switch with a spring-loaded trigger on ... | 02/15/1977 |
| 4007527 | Utensil retaining means A utensil retaining device for supporting a utensil against slipping into a cooking vessel. The retaining device comprises an elongated, hollow member with an open end to receive the utensil handle and a closed end with a hook to engage the rim of the coo... | 02/15/1977 |
| 4007528 | High speed bone drill A high-speed, electric motor-contained bone drill has an elongate drive tube into which most of the length of a burr shank engages. Centrifugal discharge means at the inner end of the drive tube expell foreign matter, and a slide controls a chuck for the ... | 02/15/1977 |
| 4007529 | Motor-driven dental handpiece A dental handpiece which includes a driving motor located within an essentially cylindrical housing; energy means infeed conduits for the motor and a supply hose containing at least one cooling medium infeed conduit being connectable to one end of the hou... | 02/15/1977 |
| 4007530 | Quick-release dental clamp A clamp usable by dentists to retain a rubber dam in a depressed position so as to isolate a tooth being worked on from mouth saliva and moisture. The clamp is constituted by a bow spring whose legs are joined to jaws adapted to grip the tooth, the spring... | 02/15/1977 |
| 4007531 | Dual denture model surveyor A base plate carries a denture model surveyor table having model clamping fingers and a clamping screw; also a column to which is pivoted, by a ball joint, a universally-adjustable surveyor tool head including an inclined shaft horizontally pivoted to a h... | 02/15/1977 |
| 4007532 | Locking pulley assembly and method of making same A locking pulley assembly includes a pulley adapted to be affixed to a surface, a pull handle, a swivel hook, and a cord extending between the swivel hook and the handle around the pulley wheel. The pulley includes a unitary pulley wheel having locking gr... | 02/15/1977 |
| 4007533 | Apparatus for stripping an anode block from an anode assembly Apparatus for stripping an anode block, or butt, from an anode assembly used in aluminum smelting includes a conveyor having a carrier from which the anode assembly is suspended and a stripping station on the path of travel of the conveyor. At the strippi... | 02/15/1977 |
