U.S. patents available from 1976 to present.
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Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.

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Patents Published on 12/18/1979


See All Patents Issued In 1979


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NumberTitleIssue Date
4178637Filled body robe
A filled body robe has a closed end, a slide fastener which closes a portion of the front and a plurality of fasteners to shape the upper end into a garment having arm holes and neck hole....
12/18/1979
4178638Split leaflet check valves
The invention concerns improvements in a split leaflet check valve. A pair of curved leaflets are hinged to a base ring for swinging movement from a normally closed position to an open position whenever a fluid is moving through the conduit wherein the va...
12/18/1979
4178639Two-leaflet heart valve
A heart valve prosthesis has an annular valve body with a central circular passageway and a pair of valve leaflets supported for pivotal movement between closed and open positions. Guides formed with spheroidal surfaces project in opposite directions alon...
12/18/1979
4178640Wrist prosthesis
A prosthesis for the wrist joint and other joints which includes a carpal component having a base for cooperation with a radial component. The base is formed in the shape of a half-toroid, each end of the toroid integrally forming an intra-medullary pin f...
12/18/1979
4178641Knee-joint-endoprothese
This invention relates to knee-joint endoprostheses, and provide an endoprosthetic member embodying condylar replacement surface means to simulate the natural slideway for the knee cap, said slideway defining a space for the cruciate ligaments of the natu...
12/18/1979
4178642Knee joint structure for artificial legs
An artificial leg of the kind in which the shin portion and the knee portion are shaped from a block of wood or similar solid material, has the knee and shin portions connected by pairs of front and rear links, the effective length of the front links bein...
12/18/1979
4178643Valve for inflatable prosthesis
A valve for an inflatable prosthesis of the type which comprises a fluid-containing envelope with an aperture closed by a valve through which a desired amount of fluid can be filled or withdrawn. The valve comprises a flat elongated conduit having a pair ...
12/18/1979
4178644Water saving device for toilet
The quantity of fluid utilized in flushing a conventional closet-type toilet bowl is reduced by a water saving device. The water saving device is adapted to be positioned within the trap of the toilet, and includes a supporting frame with a movable gate o...
12/18/1979
4178645Safety bed
A safety bed provided by detachably arranged on a generally standard or other bed or infant's crib a gate rotatably carried by anchor means inserted under the mattress for frictional retention, making possible instant conversion of a standard or other bed...
12/18/1979
4178646Vial cap opener device
A vial sealing cap opening device comprised of a body member having a channel defined therein, the sides of the channel being spaced apart a distance slightly greater than the diameter of the vial sealing caps to be opened and a blade member disposed with...
12/18/1979
4178647Four-wheeled sweeper
A street sweeping machine is disclosed comprising a wheeled frame, a cab is supported by the frame, a dirt receiving hopper is positioned behind the cab, a conveyor is positioned adjacent the hopper and has an upper end overlying the hopper for depositing...
12/18/1979
4178648Dryer curtain for car wash
A continuous loop dryer curtain for automatic car washes. In one embodiment the curtain comprises a closed loop of water absorbent material such as towel or chamois supported from an overhead roller extending transversely of the wash lane and passing thro...
12/18/1979
4178649Tube cleaning device
A tube cleaning device comprising a body extending both in a longitudinal direction and a transverse direction and defining an opening in a first end and a longitudinally extending recess in communication with the opening, wherein the perimeter of the rec...
12/18/1979
4178650Self-wringing mop
A self-wringing mop having a head which is attached to a handle and having a mop holder for holding a mop unit with a crank carried by the head which can be turned for wringing the mop. Improvements reside in a clamping member configurated to be received ...
12/18/1979
4178651Wiping arrangement for a vehicle window
A wiping arrangement for a vehicle window has a wiping blade element, a support element, an axle insertable into the elements so as to pivotally connect them with one another, and a substantially V-shaped spring member having a central portion surrounding...
12/18/1979
4178652Apparatus for cleaning roller surfaces
A method and apparatus for automatically cleaning the surface of a roller, such as a laminating roller, is disclosed herein. The method consists of rotating the roller at a predetermined fixed speed about its axis and simultaneously moving a nozzle which ...
12/18/1979
4178653Improved agitator chamber
The invention is included in a nozzle having side exhaust so that its suction tube is connected to one side of the nozzle. A groove arrangement of part spiral configuration is made in the internal periphery of the nozzle to provide the nozzle air and entr...
12/18/1979
4178654Floor polishing machines
The invention relates to floor polishing machines comprising a rotary brush drive means for the brush and means, such as a fan, for producing an updraught around the periphery of the brush to assist in removing particulate matter from a floor being polish...
12/18/1979
4178655Counterbalance mechanism
A mechanism for use in counterbalancing the weight of a lid or closure incident to movements thereof between closed and open portions is in the form of a spring pressurized, hydraulic piston-cylinder arrangement. The mechanism preferably includes means pr...
12/18/1979
4178656Glide for drapery traverse rod
A drapery hook support glide is designed to be mountable on a traverse rod at any location along the length of the rod. It is provided with a rod engaging head portion having a longitudinal dimension greater than the width of the track slot in the rod to ...
12/18/1979
4178657Separable hinge
An easily and quickly separable hinge mechanism comprises a pair of hinge plates having spaced notched portions and spaced tubular portions which interfit to form a pivotal connector, a pair of hinge pins slidably located within the tubular portions, and ...
12/18/1979
4178658Door stop with removable damping member
A door stop is disclosed including a rigid body member a stop which is not a significant obstacle to the feet of persons passing member is removably connected with the body member. The body member includes a planar horizontal bottom wall, a pair of genera...
12/18/1979
4178659Transfer apparatus for poultry processing conveyor
Suspended birds traveling in one direction on a linear delivery conveyor are transferred to a parallel oppositely moving receiver linear conveyor by an intervening rotary transfer conveyor and coacting stationary bird camming bars which nudge the birds fr...
12/18/1979
4178660Method and apparatus for introducing and distributing food additives in meats
A method and apparatus for introducing and distributing meat additives into bodies of meat are described. The apparatus includes a cylindrical container having a detachable pointed tip for piercing the body of meat and may also include a plunger to fit in...
12/18/1979
4178661Self-cleating rope holder
A rope holder includes a body having anchoring means facilitating attachment to a member. The free end of a rope leading from an object to be tied down, is threaded through a first aperture and then a second aperture, both formed in the body. Also formed ...
12/18/1979
4178662Spark plug conveyor and assembling means
A pneumatic conveyor for transporting and locating a series of spark plug insulator and electrode assemblies in individual corresponding spark plug cells comprising a hollow pneumatic transfer line and opposed first and second pneumatic vacuum pumps dispo...
12/18/1979
4178663Hand scraper
Hand-held scraper includes a body or holder portion to which is removably secured a scraping or cutting blade. The blade is retained in place by camming the mounting tabs at its respective ends into tight frictional locking engagement with a pair of longi...
12/18/1979
4178664Roller with replaceable sleeve
A roller having a readily replaceable sleeve so as to allow replacement with a like sleeve and comprising a core with a suitable elastomer layer fixedly secured to the outer peripheral surface thereof and a removable sleeve adapted so as to longitudinally...
12/18/1979
4178665Method of making a fabricated gate valve
A method of fabricating a gate valve having a hollow body with inlet and outlet conduits mounted therein and seat support members mounted on inner ends of the conduits includes fabricating and stress relieving a seat support assembly, then machining it to...
12/18/1979
4178666Method of assembling a valve device for an exhaust gas recirculation system of an internal combustion engine
A valve device for an exhaust gas recirculation system of an internal combustion engine, which device has a diaphragm mechanism having a diaphragm to form at least one chamber which is connected to an engine port and has a valve member connected to said d...
12/18/1979
4178667Method of controlling turbomachine blade flutter
A method for controlling the first torsional node line position in a rotatable blade of a turbomachine to improve its flutter stability including the steps of forming a first monolithic blade having a desired airfoil shape with convex and concave side wal...
12/18/1979
4178668Pipe tool
A pipe tool for assembling the spigot end of a first pipe into the hub or bell of the second pipe. A bracket configured to seat on the pipe pivotally carries a semi-circular yoke. An actuating handle is secured to the yoke. A collar member is axially disp...
12/18/1979
4178669Method for continuously fixing a plurality of tubular fasteners one by one to a plurality of apertures provided in a support panel
A method is disclosed wherein so-called pull-lock type blind fasteners are automatically and efficiently fitted and fixed to a plurality of apertures provided in a panel, or a plurality of aligned apertures provided in superimposed two or more panels to f...
12/18/1979
4178670Process of forming a wire pack
Making a wire pack in which a plurality of wires of predetermined length extend between a pair of spaced supports by wrapping turns of wire in a helix around a cylindrical roll while maintaining a constant tension on the wire, placing the supports in posi...
12/18/1979
4178671Tie preplating method and apparatus
A method and apparatus of preplating ties including traversely aligning ties on a path, conveying along the path ties relative to a pair of plate guides, positioning a pair of plates on each tie adjacent the guides, attaching the plates to the tie by part...
12/18/1979
4178672Apparatus for assembling and banding an expansion shell
An automatic machine for assembling and banding together the components making up an expansion shell so that the assembly can be conveniently packaged and shipped. In one embodiment, the machine contains a series of work stations arranged to assemble the ...
12/18/1979
4178673Pipe snapper machine and method
A method for assembling sheet metal pipes, and a machine for carrying out the method which comprises assembling a pipe from a preformed pipe blank into a finished pipe without permanently deforming the pipe blank material. The method comprises the steps o...
12/18/1979
4178674Process for forming a contact region between layers of polysilicon with an integral polysilicon resistor
A process for forming an electrical contact region between layers of polysilicon with an integral polysilicon resistor during the fabrication of MOS integrated circuits is disclosed. The contact region which does not require critical alignments, may be fo...
12/18/1979
4178675Applicator for telephone connectors
Apparatus for installing connectors on the ends of cables comprises first and second reciprocable rams which are coupled to each other by compressible coupling means. Connector deforming tools are mounted on the first ram which inwardly deform portions of...
12/18/1979
4178676Method for treating a superconductor
A method of making a superconducting coil from a superconducting wire includes the step of winding the wire to form a coil. Prior to the winding step, the wire is submitted to repeated tension-stressing of a predetermined stretch and a predetermined numbe...
12/18/1979
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