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 |
| 4878255 | Adjustable hinge assembly A hinge assembly for adjustably mounting a toilet covering member to the rear of a toilet is disclosed. In one form, a hinge block has a compartment with serrations to adjustably receive a bushing with complementary serrations. A mounting bolt is placed t... | 11/07/1989 |
| 4878256 | Single handle dual flushing toilet A toilet with a single handle can produce both light and heavy flushes as needed to conserve water. The handle can be lifted to produce one flush and depressed to produce the other. Separate levers attached to separated flush valves at different water lev... | 11/07/1989 |
| 4878257 | Counter-mounted splash guard, and methods of constructing and utilizing same An apparatus for preventing the overflow and spillage of liquids from a sink or tub. The apparatus is attachable to the front portion of a counter top, and is provided with removable internal absorption means to prevent liquids from passing thereby and on... | 11/07/1989 |
| 4878258 | Modular energy saving covering An energy saving covering module includes a central body portion having a pair of spaced apart walls defining an interior space containing insulating material. A first flange extends from the peripheral edges of the central body portion. A second flange c... | 11/07/1989 |
| 4878259 | Waterbed pedestal wrap A one piece decorative wrap to cover waterbed pedestals which can be quickly and easily installed, even on an assembled waterbed. This pedestal wrap is installed using fastening material, such as self-stick tape or hook and loop-type fastening like materi... | 11/07/1989 |
| 4878260 | Combination tool A combination tool includes a pair of handles and attached jaws pivotable as to each other, with a finger rest mounted to one jaw and a cutter wheel pivotally mounted to the other jaw. A tapper is mounted to one handle opposite a jaw and the handles are c... | 11/07/1989 |
| 4878261 | Sweeper with pivotally mounted dust bin A floor sweeper for sweeping and collecting dirt and debris from a floor surface includes a rotative brush element and a cooperatively associated pivotal dust bin. The bin is pivotally mounted for movement between a generally horizontal operative position... | 11/07/1989 |
| 4878262 | Automotive scrubber A scrubber for an automotive vehicle. The scrubber includes a brush, pivot and centering assembly. The brush scrubs the vehicle. The pivot allows the brush to change angular orientation. The centering means urges the brush toward a single predetermined an... | 11/07/1989 |
| 4878263 | Connector device to mount a windshield wiper contact clip, and clip endowed with such a connector device A connector device (C) for mounting a clip (E) of a windshield wiper contact portion on a curved end (2) of an arm comprises a component (1) having a substantially U-shaped longitudinal profile with two legs (7, 8) designed to lodge in the concave part of... | 11/07/1989 |
| 4878264 | Cleaning equipment Cleaning equipment comprises a container, such as a bucket usable for mopping, from which cleaning liquid is taken and to which that liquid is returned after it has been used for dirt removal. The container is provided with a dirt trap comprising a dirt-r... | 11/07/1989 |
| 4878265 | Hold-open mechanism for use with a door closer A releasable door hold-open mechanism, for use with a door closer, is disclosed. The mechanism employs a latch assembly, mounted in a track which defines a predetermined path for a slider shoe associated with a door closer arm. The latch assembly employs ... | 11/07/1989 |
| 4878266 | Easel hinge An easel hinge made of a sheet of material having an outer portion with two leg sections joined by a hinge support section. A central portion of the sheet is disposed between the leg sections and interconnected with the hinge support section by bendable h... | 11/07/1989 |
| 4878267 | Resisting entry of an object into a space between the hinged edge of a door member hingedly attached to a associated jamb member and a surface of the jamb member A device for resisting entry of an object into a space between the hinged edge of a door and associated door jamb includes an elongated sheet of material thin enough to be placed in this space without impeding the closing of the door. The sheet has first ... | 11/07/1989 |
| 4878268 | Device for drawing roves or slivers of fibers on a spinning machine This invention relates to a device for drawing roves or slivers of fibers on a spinning machine with a view to converting this material into spun yarns, of the type incorporating pendulous arms, constituted essentially by an assembly comprising, mounted o... | 11/07/1989 |
| 4878269 | Cord fastener A fastener for releasably clamping cords which includes a housing having a cavity therein and a movable element disposed in said cavity defining one or two cord passages and further including a spring attached to the housing so that the passage is restric... | 11/07/1989 |
| 4878270 | Rope tie-down apparatus A rope tie-down clamp apparatus is provided for quickly and easily tightening and securing a rope between two points. The rope is formed with a loop at one end, and the end of the rope is secured to the housing of the clamping apparatus. A passage is prov... | 11/07/1989 |
| 4878271 | Tongue assembly An improved tongue assembly is used in a safety apparatus having a belt for restraining movement of an occupant of a vehicle. The tongue assembly includes a base having an opening through which the belt extends. A metal bar spans the opening in the base s... | 11/07/1989 |
| 4878272 | Tongue assembly A tongue assembly is used in a safety apparatus having a belt for restraining movement of an occupant of a vehicle. The tongue assembly includes a base having a flat leading end portion, a flat trailing end portion which is offset from and extends paralle... | 11/07/1989 |
| 4878273 | Metal trim attaching system A metal trim attaching assembly secures an element, such as a molding strip, upon a supporting surface. The assembly includes an isolator that has a substantially flexible mounting plate with a mounting surface yieldable to conform generally to the contou... | 11/07/1989 |
| 4878274 | Securement system A securement system of the type for mounting an object, such as a hammock, snow skis or the like to a support member or to one another including an elongated flexible body member having inner and outer sections. The inner section including a portion made ... | 11/07/1989 |
| 4878275 | Separable slide fastener A top end stop of one of opposed fastener stringers of a separable slide fastener has an obtusely angled configuration composed of longitudinally continuous and integral first and second half parts. Each of the first and second half parts has a maximum wi... | 11/07/1989 |
| 4878276 | Spring clip A spring clip, particularly for use as a peg for suspending clothes from a crossbar of a hanger, has a bar-engagement clip lying between a fulcrum for pivoting movement of a pair of levers and a nip formed by one end of the pair of levers. A U-shaped spri... | 11/07/1989 |
| 4878277 | Child proof seat belt restraint A child proof cover for covering and encasing a seat belt buckle assembly includes a channel which provides access to the release control of the seat belt buckle assembly. The channel is sized and configured so that a child cannot reach the release contro... | 11/07/1989 |
| 4878278 | Method for manufacture of paper making fabrics An apparatus and method for papermaking fabrics (W) with a machine direction fiber batt (24) is disclosed. A carding machine (B, B') is arranged with its carding cylinder (39) parallel to the axis of rotation (22) of carriage rollers (20) about which a ba... | 11/07/1989 |
| 4878279 | Warp transfer apparatus A warp transfer apparatus for transferring warp threads to a warp drawing apparatus, comprising a stationary frame structure, a warp carrying frame structure for carrying the warp threads thereon which is movable with respect to the stationary frame struc... | 11/07/1989 |
| 4878280 | Apparatus and process for intermingling filament yarns This invention relates to an apparatus and a process involving fluid jet devices for intermingling filaments of a continuous filament yarn or yarns, including combining a plurality of yarns to produce a larger coherent yarn. More particularly, the inventi... | 11/07/1989 |
| 4878281 | Press roll for dewatering a web A press roll for a web comprises a support body which is either stationary or rotatable and comprises a press shell which is rotatable over the support body and against a mating roll. A respective shell support element or disc is disposed axially outward ... | 11/07/1989 |
| 4878282 | Method for the production of friction plates, synchronizing blocker rings or similar structures By complete removal of the friction lining material, grooves or slots are formed in a friction lining made of organic material, the grooves being openings or gaps that are initially closed at the ends. The friction lining is applied as a continuous member... | 11/07/1989 |
| 4878283 | Augmentor liner construction The holes in a liner for an augmentor for a gas turbine engine are reoriented so that cooling air admitted into the gas path is directed tangentially to the liner wall instead of radially and the opening defines a scoop that enhances turbulence adjacent t... | 11/07/1989 |
| 4878284 | Hand held sheet metal joining system A portable sheet metal joining apparatus is disclosed including a releasable tool carrying cartridge carried by a piston in a hand held gun which is powered by a booster of very compact design which uses standard compressed air to create high pressure hyd... | 11/07/1989 |
| 4878285 | Method of assembling coupling to tubing or casting Precision makeup at high speed of the most used forms of pipe and casing for production wells is assured by a novel coupling system. A pipe collar is provided with an internal precision makeup ring whose length along the pipe axis assures precise position... | 11/07/1989 |
| 4878286 | Truss structure and method for construction thereof A truss structure for use in a gravity-free environment is disclosed together with methods and apparatus for constructing the same. The structure, characterized by high stiffness and a precise self-determined geometry and having a prism-form with square r... | 11/07/1989 |
| 4878287 | Process and apparatus for positioning a bale hoop parting device A bale of fibrous material bundled by metal hoops is pressed against an elongated guide, with at least one sensor disposed at the guide for producing signals in response to the presence of metal, a parting device adapted to sever a hoop being displaceable... | 11/07/1989 |
| 4878288 | Press A bearing element (30) for a handling device (31) whose gripper can be moved in a plane parallel to the plane of the holding apparatus (8, 11) and at right angles to its direction of movement, from a rest position to at least one position for removal of t... | 11/07/1989 |
| 4878289 | Methods of assembling electric motors with reduced end-play A method of manufacturing fractional horsepower motors involves using each stator to customize the length of a rotor/shaft to match the thickness of the specific stator with which it will be used. This is accomplished by providing a fixture which receives... | 11/07/1989 |
| 4878290 | Method for making thin film magnetic head A method for making a thin film magnetic head in which the pole tips are trimmed to a predetermined width prior to the completion of the magnetic yoke structure. The thin film magnetic head is produced through deposition of the first magnetic layer in two... | 11/07/1989 |
| 4878291 | Method of manufacturing toroidal coils A toroidal coil device used in a circuit of an automobile radio receiver as an element for blocking AM waves, including a ring core, U shaped first conductive members arranged on the core at circumferentially equal intervals, and second conductive members... | 11/07/1989 |
| 4878292 | Armature paper feeding, cutting, and inserting device A machine for driving and variable length cutting of the paper used in the armature of an electric motor rotor. The machine comprises a feed distance covered by the paper between shaping rollers, over which a pressure wheel is located which pushes the pap... | 11/07/1989 |
| 4878293 | Method of interconnecting assemblies using torsionly stressed conductors routed through a hollow articulated hinge Conductors of a flexible printed circuit routed through a hollow two axis articulated hinge allow a calculator with rotating case halves to possess a keyboard portion in each half of the case. The conductors routed through the hollow articulated hinge are... | 11/07/1989 |
| 4878294 | Electroformed chemically milled probes for chip testing A method for manufacturing a probe test structure for microcircuits utilizes a multiple coating method in conjunction with a novel double-cell electroplating apparatus having a relatively high-resistance ion path between the cells. Photoresist is applied ... | 11/07/1989 |
