Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 4916752 | Helical visual display device A visual display device having two helices each wound from a single tubular-like material about a common axis and one of the helices being within the peripheral confines of the other and the coils of the one helix being wound in the same direction as the ... | 04/17/1990 |
| 4916753 | Safety welding mask A safety welding mask is set forth provided with a self-contained battery power supply and associated switching for opening and closing of a safety window associated with the welding mask.... | 04/17/1990 |
| 4916754 | Antiglare apparatus A dual visor system enables the wearer to use the device as a conventional visor, or to lower a secondary visor to a position below the eyes to provide an aperture to reduce both direct and reflected light entering the wearer's eyes. By providing a roughe... | 04/17/1990 |
| 4916755 | Swimsuit A swimsuit having an inner liner of stretchable and resilient fabric for encasing at least a portion of a person's torso, including the abdomen, hips and rear areas; at least one control panel bonded to the inner liner for restricting the stretching of th... | 04/17/1990 |
| 4916756 | Blanket construction A blanket construction adapted for use in covering an individual reclining on surfaces such as couches or reclining chairs formed with a square body of blanket material having one corner cut off at approximately 45° angle and having a separate piece of b... | 04/17/1990 |
| 4916757 | Plastic glove having a trigger finger and provided with lateral receptacles and related method and tooling A glove is formed of plastic films which are sealed together along lateral edges between which is formed a peripheral seal in the form of a contour providing thumb, forefinger and further receptacles. The further receptacle is intended to accommodate thre... | 04/17/1990 |
| 4916758 | Disposable full ear protector for beautician use There is disclosed a full ear protector for beautician use during applications of liquid treatments which may irritate or otherwise cause discomfort to the ear flesh or outer ear canal, wherein the ear canal is protected by a plug while a full ear cover s... | 04/17/1990 |
| 4916759 | Full face type helmet A full face type helmet having a shock absorbing liner disposed throughout the entire inner surface of a cap and an inner pad mounted inside the shock absorbing liner. Right and left cheek pad portions each comprising integral portions of the shock absorb... | 04/17/1990 |
| 4916760 | Dispensing device A container for dispensing a cleaning agent into a tank through an initially sealed opening is disclosed in which a retaining hook is mounted in a recess in the container and adapted to attach the container to the tank and in which a cap is mounted over t... | 04/17/1990 |
| 4916761 | Toilet flush-economizer A water saving device for use with a conventional toilet having a movable flush valve component attached by linkage to a flush actuator external to the tank. The device includes a stop-body which is attached to an external wall of the tank such that in ac... | 04/17/1990 |
| 4916762 | Positive shut-off, metered water control system for flush tanks A device for metering the flow of water into the tank and bowl of a toilet and providing a positive shut-off of the flow. When the toilet handle is turned, a linkage rotates a cam to force the stopper from its seat thereby commencing water flow. Water flo... | 04/17/1990 |
| 4916763 | Pool deck protector A pool deck protector comprising an enlarged body portion tapering into narrow elongated strips at either end, where the body portion is adpated to underlie the body of a spring member forming part of a pool cover tensioning arrangement. The aforesaid str... | 04/17/1990 |
| 4916764 | Bathtub shower curtain assembly A bathtub shower curtain assembly includes a supporting frame structure designed to replace conventional shower door or curtain constructions associated with a bathtub. One end of the frame structure includes a vertically positioned case in which a rolled... | 04/17/1990 |
| 4916765 | Pillow kit A pillow kit including a compressible and resilient cushion body have a recess therein extending across its complete width and a narrow opening extending into the recess from the outside of the cushion body, and a plurality of compressible and resilient i... | 04/17/1990 |
| 4916766 | Bed sheet and mattress attachment means The present invention entails a mattress and mattress support set specifically adapted to enable a bed sheet to be quickly and easily attached to the underside of the mattress. In particular, the underside of the mattress is provided with a plurality of s... | 04/17/1990 |
| 4916767 | Device for securing detachably filtering sheet to air bed A device for securing detachably a filtering sheet to an air bed which includes a bed body having an upper peripheral edge defining an opening and a number of fine solid particles contained in the bed body, has a flange secured to the upper peripheral edg... | 04/17/1990 |
| 4916768 | Washing and extracting method A washing and extracting machine includes a programmable controller for controlling a variable speed drive to control and vary the speed and direction of a rotating laundry cylinder containing a load of materials to be laundered. The cylinder is first loa... | 04/17/1990 |
| 4916769 | Disperse mono-azo dye mixture for dyeing synthetic textiles A disperse dye mixture comprising from 85 to 95% by weight of a dye of the formula: ##STR1## and from 15 to 5% by weight of a dye of the formula: ##STR2## wherein R represents --OH or --OCOR4 wherein R4 represents C | 04/17/1990 |
| 4916770 | Portable electric shoe shiner A portable shoe shiner that includes a shining member for shining shoes; an electric motor for rotating the shining member; and a housing for including the shining member and the electric motor therein. The portable shoe shiner is further equipped with a ... | 04/17/1990 |
| 4916771 | Apparatus for washing the wheels of vehicles in a washing plant The apparatus for washing the wheels (2) of vehicles in a washing plant has two oppositely arranged rotating wash brushes (4) each of which is associated with the wheels of one side of the vehicle and adjustable in the vehicle's direction of movement (B) ... | 04/17/1990 |
| 4916772 | Portable drain cleaning apparatus A portable drain cleaning apparatus comprising a payout drum supporting a coil spring snake wound therein and supported for rotation on a support frame, the payout drum being detachable and replaceable with similar drums supporting different sized and con... | 04/17/1990 |
| 4916773 | Paint brush with integral cleaning means A paint brush is disclosed herein having an apertured block retaining the heel of a plurality of bristles. A frame is secured to the block on one end and secured to a handle on its other end so as to define a cavity between the block and the handle for st... | 04/17/1990 |
| 4916774 | Windshield wiper drive mechanism with retracted parking position A windshield wiper drive mechanism includes a crank driven by a motor shaft and having, towards the end of the crank remote from the motor shaft, a crank pin carrying an eccentric crank head piece on which a crosshead is pivoted. The head piece carries a ... | 04/17/1990 |
| 4916775 | Harvesting, shucking and eviscerating clams at sea A sea-going vessel has mounted on its deck a clam processing plant which includes in sequence a steamer, a clam crusher, a seawater washer, a brine separator, an eviscerator and a chill tank. Special valves are constructed to feed and discharge clams from... | 04/17/1990 |
| 4916776 | Method and apparatus for processing shrimp Shrimp are conveyed in upright orientation upon a pair of spaced rails that revolve in upright planes and which strike bumpers. The shirmp may be size sorted by orienting the rails such that their spacing changes. The shirmp are deheaded by conveying then... | 04/17/1990 |
| 4916777 | Ring mounting for opening rollers of spinning machines In the case of a ring mounting for opening rollers of spinning machines having a ring-shaped basic body, out of the outer circumference of which a set of teeth is worked by means of notches extending essentially in axial direction and by means of grooves ... | 04/17/1990 |
| 4916778 | Device for securing car seat A plastic device for securing an automobile seat to an automobile panel includes a body and a lever arm. The body integrally has a leg-like lower portion open at the top, an upper portion united to the top of the leg-like portion, and upper and lower flan... | 04/17/1990 |
| 4916779 | Adjustable fastener An adjustable fastener for interconnecting a first and a second part of an article includes a flat hollow sleeve having a first connecting portion for attachment to the first part, a plug having a second connecting portion for attachment to the second par... | 04/17/1990 |
| 4916780 | Safeguarding buckle for a safety belt The buckle comprises a latch (10) interacting with a keeper consisting of a base (20), of an ejecting guide bolt (30), of an actuating button (50), of a protective casing (60) and of a securing connection (70), among other things. Means (40) having an ins... | 04/17/1990 |
| 4916781 | Fastening device A fastening device consisting of a first bar and a second bar. The first bar has an interior channel and a longitudinally extending groove communicating with the interior channel. The groove has enlarged openings at spaced intervals. The second bar has a ... | 04/17/1990 |
| 4916782 | Method for making a non-woven flannel fabric A method and apparatus is set forth to form a flannel-like product. A non-woven web of fibers of two contrasting shades of color are needled twice to form a non-woven fabric with the coloration of woven flannel material. A calendar roll smooths the fabric... | 04/17/1990 |
| 4916783 | Apparatus for controlled braking of a driven yarn engaging roll In a textile draw warping system having independently driven sets of draw rolls and an independently driven warp beam, synchronous braking of the driven components is controlled by individual pneumatic brakes at each driven component operated by a central... | 04/17/1990 |
| 4916784 | Warp-drawing apparatus A warp-drawing apparatus for drawing a warp thread through an eye of a heddle, comprising a compression nozzle which is provided in one side of the heddle and formed with a compression passageway through which the warp thread is drawn and formed with a no... | 04/17/1990 |
| 4916785 | Heddle magazine A heddle magazine comprising a pair of first magazine bars having carried thereon a plurality of heddles which form a first heddle group; a pair of second magazine bars disposed in parallel relationship to the first magazine bars and having carried thereo... | 04/17/1990 |
| 4916786 | Method of assembling an armature of an umbrella An armature of an umbrella, composed of elements (1) in the form of a monobloc casting, having several parts corresponding to the tension arm (2), the spokes (3) and a longitudinal portion (4) of the handle. The different parts are connected to one another by ... | 04/17/1990 |
| 4916787 | Knot catcher for yarns and threads Knot catcher for yarns and threads includes two rotary rollers spaced from each other to form therebetween a thread-receiving through opening which is limited at two ends thereof by two opposite walls of the housing of the knot catcher. The size of the op... | 04/17/1990 |
| 4916788 | Method of manufacturing ball joint A method of manufacturing a ball joint serves to reduce the cost for producing the joint. In the method, while a ball portion of a ball stud of the ball joint is being placed in a mold, a socket is cast-molded in such a manner that the socket will form an... | 04/17/1990 |
| 4916789 | Valve stem construction A valve stem formed by evaporative pattern (or lost foam) casting a hollow or solid rod member inside of the elongated outer member. Since the stem is thereby cast to near net shape, little machining is required to finish it. The elongated member can have... | 04/17/1990 |
| 4916790 | Backer-rod installation tool A tool for forcing a backer-rod to a predetermined depth. A first rotatable wheel is rotatably mounted between the arms of a handle being extendable into a building slot to contact a backer-rod. A pair of outer wheels are rotatably mounted on either side ... | 04/17/1990 |
| 4916791 | Ball bearing puller attachment The invention comprises two or more links for connecting a ball bearing puller where the outer surfaces of both races of the assembly are both engaged with mating surfaces of an associated machine. The links are arranged so that one end of each link engag... | 04/17/1990 |
