Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 4163292 | Hip prosthesis A prosthesis for the primary replacement of intertrochanteric fracture fragments to prevent the multitude of complications resulting from open reduction and nailing of intertrochanteric fractures. The prosthesis replaces the femoral head, neck and comminu... | 08/07/1979 |
| 4163293 | Flushing cistern In a water-flushed toilet having a cistern, a fraction of the water inflowing to the cistern is bypassed to a basin, from which it is drained away through a vent. The basin is provided in the lid of a low-level cistern, or in a shelf in the case of a high... | 08/07/1979 |
| 4163294 | Toilet facility A toilet facility that is completely independent of water supply and sewer lines includes a house having a waste-receiving tank within it and another tank located outside the house. The two tanks are connected by a transfer pipe provided with a pump for p... | 08/07/1979 |
| 4163295 | Pool cover A swimming pool cover has a central arm and support arms pivotally attached to the central arm for movement generally in one plane. A sheet of flexible, waterproof material is attached to each of the arms and extends between the arms. The central arm is p... | 08/07/1979 |
| 4163296 | Mattress foundation employing springs and cooperating foam bodies A box spring assembly having a rectangular horizontal frame, a wire grid displaced vertically above the frame and yieldably supported thereon, transverse cross rails secured to the frame and foam bodies on the cross rails and supporting the wire grid for ... | 08/07/1979 |
| 4163297 | Mattress Disclosed is a mattress comprising a plurality of smal pillow-like elements each of which consists of an envelope formed by a flexible membrane largely filled with a suitable fluid or grain-like material, and means for securing said elements side-by-side ... | 08/07/1979 |
| 4163298 | Dyeing of pile fabrics Methods of and apparatus for cold dyeing pile fabrics, particularly carpets, wherein dye liquor is first applied to the pile side of the fabric in an amount between 150% and 300% of the material weight, the dye impregnated fabric then being coiled, under ... | 08/07/1979 |
| 4163299 | Portable golf ball washer A portable golf ball washer including a cylindrical housing defining a washing chamber, the housing having an opening in a peripheral wall thereof permitting a conventional golf ball to be inserted into the washing chamber, ball scrubbing means disposed i... | 08/07/1979 |
| 4163300 | Electric toothbrush An electric toothbrush consisting of an elongated body member having a cylindrical brush mounted coaxially therewith at one end thereof, and driven rotatably by a reversible electric motor carried in the handle, and having an automatic reversing switch re... | 08/07/1979 |
| 4163301 | Tunnel or like wall cleaning machine Cleaning apparatus usable to clean those portions of a tunnel wall or the like which are located behind railing means typically placed along a walkway beside the wall, such as in a freeway tunnel. A guidance carriage engages the railing and is movable the... | 08/07/1979 |
| 4163302 | Wall cleaning apparatus A hydraulically controlled telescopic boom is mounted on a wheeled powered vehicle. A hydraulic system controls the length of the boom and its direction to the right and left of the vehicle. An electric motor is mounted on the boom at the free end thereof... | 08/07/1979 |
| 4163303 | Hinge structure A novel hinge of flexible material is provided which comprises a pair of end sections and an intermediate connecting section. The end sections are securable through various means including hook and loop filament material to one face of a structural elemen... | 08/07/1979 |
| 4163304 | Rotary cylinder fitted with needles or teeth for the treatment of slivers of textile fibers The needles or teeth are rigidly fixed on longitudinal bars mounted on the cylinder body in such a manner as to be capable of pivotal displacement on the cylinder body about axes parallel to the axis of the cylinder. Locking means carried by the cylinder ... | 08/07/1979 |
| 4163305 | Process and device for the manufacture of non woven webs from filaments Non woven webs are produced from filaments by laying down the said filaments in the form of cone sections on a moving surface with simultaneous spreading out to a filament veil with the use of rotating deflectors coming into contact with the filaments on ... | 08/07/1979 |
| 4163306 | Bounce crimper outlet apparatus An improved outlet apparatus for a bounce crimper is disclosed which includes a restrictor assembly provided with a bore and an internally mounted flat leaf spring. Extending beneath the leaf spring, a longitudinal slot may be provided through which a tex... | 08/07/1979 |
| 4163307 | Device for tensioning corona-discharge electrode elements The wires or strips (corona-discharge electrode elements) of a corona-discharge electrode are tensioned in the support frame thereof by anchoring one end of each element to a bar of the frame, drawing the other element with a predetermined tension by flui... | 08/07/1979 |
| 4163308 | Deflection yoke assembly positioning device A deflection yoke assembly positioning device which grasps the opening portion of flared portion of a deflection yoke assembly mounted on the funnel yoke portion of a color cathode-ray tube of a color television receiver in the steps of correction of incl... | 08/07/1979 |
| 4163309 | Arrangement for mounting components on a carrier board and method of indicating mounting locations The mounting locations for separable components on a printed circuit board are indicated by a projected luminous spot which is moved sequentially and repeatedly between the several mounting spots for each component. The direction of movement of the lumino... | 08/07/1979 |
| 4163310 | Tightening system A tightening and control system is disclosed for automatically tightening a fastener to a predetermined tightened condition in a workpiece, where the fastener is of the type which exhibits more than one installation region on a graph of two tightening cha... | 08/07/1979 |
| 4163311 | Tightening system for blind fasteners A tightening and control system is disclosed for automatically tightening a blind fastener assembly to a desired tightened condition in a workpiece, where the assembly is of the type which exhibits more than one installation region on a graph of two tight... | 08/07/1979 |
| 4163312 | Method and means for producing rolled metal products Metal melted and poured into molds, mounted on a conveyor, at a first station. Metal cools to rolling temperature during conveyance to second station where hydraulic ram ejects ingots from molds. Ingots are immediately fed to rolling mill. Molds have inte... | 08/07/1979 |
| 4163313 | Transfer machine A transfer machine composing of a rotary indexing table with a positioning device for transferring plural jig plates holding workpieces to be machined thereon and which are intermittently indexed and working units being arranged near the circumference of ... | 08/07/1979 |
| 4163314 | Method of manufacturing an electromagnetic relay An electromagnetic relay comprises a coil bobbin of plastic material defining a protective tube, a contact chamber and a magnet chamber which together form a space that extends the entire length of the bobbin and is initially open at both ends. A permanen... | 08/07/1979 |
| 4163315 | Method for forming universal film resistors A method for forming a film resistor for hybrid circuits trimmable from 0 ohms to infinite resistance, whereby resistive material is deposited over previously applied conductive material. One edge of the resistor material is flush with one edge of the con... | 08/07/1979 |
| 4163316 | Safety razor A safety razor intended to be discarded after use, comprising a cutting head and a handle. The cutting head includes two oppositely disposed longitudinal surfaces with cutting edges disposed thereon. In order that both cutting edges may be used, the cutti... | 08/07/1979 |
| 4163317 | Knife assembly Described herein is a novel knife assembly useful in a myriad of kitchen tasks. The article of the invention comprises a blade having a scoring point protruding from the dull edge. Also described is an assembly wherein the blade contains a narrow slit wit... | 08/07/1979 |
| 4163318 | Device for replacing missing teeth in human dentition The device which is adapted to be secured between two existing teeth is suitable for supporting an artificial denture to replace an anterior tooth or a posterior tooth. The device is comprised of a backing member having a pair of parallel extendable arms ... | 08/07/1979 |
| 4163319 | Dental occluder A dental occluder comprising top and bottom arms having base elements and matrix supports secured to each of the arms, the matrix supports each being angularly adjustable relative to the base elements and the respective arms, and the matrix supports being... | 08/07/1979 |
| 4163320 | Dental occluding instrument Two slides are slidably fitted into each of two through openings extending in a parallel relationship through a base block and two opposite holders extend perpendicularly from outer end portions of both slides. A threaded rod loosely extends through one o... | 08/07/1979 |
| 4163321 | Method for sequencing the cutting of elongated stock A method for sequencing the cutting of elongated stock such as boards of lumber having random unusable lengths containing knots, discoloration or the like for reducing waste when cutting a mix or mixture of different grades of lumber into furniture parts ... | 08/07/1979 |
| 4163322 | Compass with fine adjustment A compass is provided which includes a fine adjustment mechanism comprising lateral spreader bars attached to the respective compass legs and a central drive wheel meshing with the spreader bars. The spreader bars and drive wheel are located in a compass ... | 08/07/1979 |
| 4163323 | Length measuring devices A length measuring device comprising a housing, a measuring wheel rotatable by displacement of the device, a counter located in the housing and driven by the measuring wheel and sound generating means having two parts connected one to the housing and one ... | 08/07/1979 |
| 4163324 | Surveying of boreholes When surveying a borehole using an instrument responsive to the earth's magnetic field, the assumption is made that the error vector which comprises the difference between the true earth's magnetic field and the measured magnetic field in the borehole is ... | 08/07/1979 |
| 4163325 | Verticality sensors A verticality sensor comprises a casing within which is mounted a rotary pick-off device having a body attached to the casing and mounted on a shaft for relative rotational movement with respect thereto, such movement producing an output signal from the p... | 08/07/1979 |
| 4163326 | Remote indicating solid state compass A solid state compass system for use with automobiles or the like. The system consists of a dashboard mounted readout unit which receives signals provided thereto from a remotely located solid state magnetic bearing sensor, the latter being responsive to ... | 08/07/1979 |
| 4163327 | Direct condenser defrosting system An improved defrosting means for a condenser in a freeze drying apparatus including a thermocouple for monitoring the condenser temperature during a freeze drying cycle, and an electric cartridge heater for defrosting the condenser after the freeze drying... | 08/07/1979 |
| 4163328 | Moving target screen with improved optical control An electro-optical apparatus for marksmanship training wherein a simulated cene is presented on a screen by a motion picture projector. The marksman or trainee operates a weapon, which includes a module to develop a laser beam, to simulate firing at a targ... | 08/07/1979 |
| 4163329 | Apparatus for resurfacing a snow layer The disclosed apparatus is a machine of the type for connection to a snow skiing course maintenance tractor. It has freely-rolling rollers for compacting the snow and a plurality of scrapers arranged side by side. The scrapers are pivoted vertically about... | 08/07/1979 |
| 4163330 | Dredge cutter head having a volute compartment An apparatus for disintegrating and removing layers of earth, especially under water, comprising a housing in which at least one volute compartment is formed, which is open on the underside and which accommodates a rotor which comprises disintegrators and... | 08/07/1979 |
| 4163331 | Machine for ironing a shoulder and a sleeve of a garment A "stretcher" machine for ironing the shoulder, arm-hole and sleeve of an upper garment comprises a former and a stretcher. The former has an outer shape corresponding to the contour of at least one shoulder for carrying the garment in the wearing positio... | 08/07/1979 |
