U.S. patents available from 1976 to present.
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Patents Published on 05/23/1978


See All Patents Issued In 1978


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NumberTitleIssue Date
4090265Partition wall for wet chambers
A partition wall for wet chambers, particularly for bathrooms or stall showers with several wall panels which are slidable either with each other or with respect to each other with each wall panel suspended in an upper guide rail with sliding or roller gu...
05/23/1978
4090267Self caulking toilet drain
A drain for connecting a toilet to a discharge pipe includes a cylindrical drain body having a flange extending radially from the upper end thereof, and a plurality of bosses extending subjacently from the flange and joined to the exterior of the drain bo...
05/23/1978
4090269Insulated covering
Insulated coverings, such as for example, sleeping bags, garments and the like are characterized by inner and outer coextensive layers of a fabric material having unidirectionally extending insulating plies therebetween wherein each of the insulating plie...
05/23/1978
4090271Chimney cleaner
A chimney cleaner designed to be lowered through a chimney from its upper end includes both scrubbing and chopping elements for removing soot, tar, mortar and the like from the chimney walls. The scrubbing elements are adjustable to suit various sizes of ...
05/23/1978
4090273Detent for mechanical linkage
A movable linkage has a surface of travel in which a generally V-shaped notch with edges is formed. A rotatable cam follower has first and second sides meeting to form a corner that fits in the notch. One of the sides of the cam follower is urged by a spr...
05/23/1978
4090276Textile carding
A roller train in a carding machine comprises first, second and third card-clothed rollers, the second roller having two sets of teeth pointing in opposite directions, and the relative surface speeds of the rollers being such that one set of teeth on the ...
05/23/1978
4090278Lacing device for ski boots
A lacing device for ski boots comprises a hooked lever-like lacing member provided on one flap of the boot which cooperates with a ring-like lacing member provided on the other flap of the boot. The hooked lever-like lacing member is hingedly mounted on a...
05/23/1978
4090280Manufacture of helical wave guides
A machine for manufacturing circular section helical wave-guides and providing simultaneous calibration of the bore of the helix and snug fitting of the screen around the helix. The helix is loosely fitted in an enveloping tube and both tube and helix are...
05/23/1978
4090281Machine tool with multiple tool turret
A machine tool includes a turret having a plurality of machine tool spindles for carrying individual cutting tools. The turret rotates in a horizontal plane about a vertical column and is supported on the column by a yoke having yoke arms projecting throu...
05/23/1978
4090282Deflection control device
Deflection control device, having a stationary supporting member; said supporting member comprising a series of hydrostatic supporting elements; said device also having a shell movable transversely in relation to the series of said supporting elements; du...
05/23/1978
4090284Method of making a sintered pulley hub construction
A sintered pulley hub construction for mounting on a bottom wall of a sheet metal pulley cup. A pair of tubular members is pressure formed in a green compact state from a metal powder mixture. One of the members has a cylindrical body which terminates at ...
05/23/1978
4090287Workpiece changer mechanism for a machine tool
A machine tool has a worktable slidably mounted on a bed for movement along a horizontal X axis opposite a spindle which is journalled for rotation about a horizontal Z axis perpendicular to the X axis, the spindle being slidably mounted on the bed for mo...
05/23/1978
4090289Method of fabrication for field effect transistors (FETs) having a common channel stopper and FET channel doping with the channel stopper doping self-aligned to the dielectric isolation between FETS
A fabrication method for providing electrical isolation between transistors such as field effect transistors (FETs) which are fabricated on the same semiconductive substrate is described that uses a single doping step to form both the channel stopper fiel...
05/23/1978
4090291Method for encapsulating a corrosive material with lithium
The invention is addressed to a method for encapsulating a corrosive material with lithium wherein an encasing member having an opening is formed by folding and cold bonding a sheet of lithium into a receiving vessel. The corrosive material is poured into...
05/23/1978
4090294Jointing or terminating plastics sheathed electric cable
In effecting a fluid-tight seal between a plastics part of a cable joint or termination enclosure and the plastics sheath of an electric cable a hole is formed in the wall of said part to form a cable entry of a size appropriate to the cable and a length ...
05/23/1978
4090296Cabbage coring tool
A cabbage coring tool has an elongated semi-triangular shaped blade which is cross sectionally arcuate with both of the longer edges being sharpened. An axially extending shank is joined to the blade midway of its widest section and a cross bar is affixed...
05/23/1978
4090298Golf tee awl
A golf tee awl for making holes in the ground to make it easier to insert golf tees. The awl has a circular knob-shaped handle with a sharpened shank or spike protruding therefrom and a protective sheath which covers the sharpened shank when the awl is no...
05/23/1978
4090300Ornamental fabric
A predetermined symmetrical pattern is sewn on a canvas by applying a flexible adhering sheet having printed thereon indications of a gridwork corresponding to the gridwork of the canvas. The flexible sheet is of substantially smaller area than the canvas...
05/23/1978
4090302Printing blanket holding bar gage
A printing blanket holding bar gage is provided and made of a flat strip having a stepped slot therein which extends inwardly from an edge thereof for receipt of a holding bar and the slot is comprised of a plurality of aligned slot portions each defined ...
05/23/1978
4090305Precision rifle sight adjuster
The instrument includes a shaft or tube which is inserted into the end of a gun barrel and includes at least one balanced module having an index pointer disposed a few inches in front of the free end of the barrel and extending vertically upwardly into th...
05/23/1978
4090307Method for removing water from workpieces and apparatus therefor
A method for removing water from the surface of workpieces, particularly, glass workpieces, by dipping the workpieces into a boiling dewatering bath composed of an organic solvent which is immiscible with water and which contains surface active agents, an...
05/23/1978
4090309Filter drying apparatus
A filter drying apparatus for cylindrical-type filter units having a frame and an adjustable means for rotating the filter unit at regulated set speeds, the area in which the filter is rotated being surrounded by a casing. Within the casing, adjacent the ...
05/23/1978
4090311Method and apparatus for teaching dyslexic children
A teaching method and device for teaching dyslexic children to form correct mental images of symbols such as letters, numbers and words. In accordance with the method of the invention, the child is encouraged to study a card having imprinted thereon a sym...
05/23/1978
4090313Manually assemblable slide chart with integral self-locking tab
A slide chart made from an elongated card and particularly adapted to be self-assembled for use as a calorie counter for food products, such as soft drinks, cereal products and the like. The card may be inserted in a carton or other container for food pro...
05/23/1978
4090314Scraper bowl lifting brackets
A lifting and tie-down arrangement is provided for a push frame and scraper bowl assembly and includes a first bracket removably affixed to the outside and/or inside of the draft arm socket in the side walls of the scraper bowl. A second bracket is select...
05/23/1978
4090315Display with movable indicia
A support for use in a movable indicia display comprises a series of at least three substantially identical panels arranged in edge-to-edge adjoining relationship in a plane, each panel having a first guide channel formed along one edge and located on one...
05/23/1978
4090316Firing pin safety device for hand firearms
A hand firearm has a firing pin which is pivotable between safety and firing positions and a hammer which has a striking surface engaging the firing pin when the firing pin is in its firing position and a recess which receives the firing pin when in its s...
05/23/1978
4090318Adjustable buoyancy fishing bobber
An adjustable buoyancy fishing bobber is provided having a body portion of cylindrical shape with accordian pleated sides running the full length of the body portion. At one end the cylindrical body portion is closed with an axially extending round post p...
05/23/1978
4090320Smoke ring box
A smoke ring device that permits the user to create through an outlet on the housing thereof a series of smoke rings created from a fine powder by generating means contained within the housing having associated therewith pumping means for manually obtaini...
05/23/1978
4090322Geometric amusement set
A geometric building and amusement set comprising a plurality of similar block-like pieces each having a generally triangle cross section. The set has three distinctly shaped pieces: a first group of pieces having a generally rectangular male connector fo...
05/23/1978
4090325Knitted fabric mulches
A mulch product comprising an open-mesh fabric having knittedly inter-connected longitudinal and transverse yarn elements and a multiplicity of parallel strips of paper or other suitable material secured to a surface of the knitted fabric so as to form a ...
05/23/1978
4090327Apparatus for treating trees
An injector blade for injecting liquid into a tree wherein the blade has a concave cutting edge, a flat non-beveled first surface containing a cavity for ejectment of a treating solution onto the surface of a frill made during impact of the blade with a t...
05/23/1978
4090329Window operating mechanism
The window operating mechanism in a motorcar door includes a window support moved by a bowden cable extending in an angular loop. The wire of the cable is protected in the corners of the loop by a flexible sheath deflected into an arc by a rigid U-channel...
05/23/1978
4090331Apparatus for preventing circumferential overspeeding of a grinding wheel
An apparatus for preventing circumferential overspeeding of a grinding wheel is provided in which a first rejection pin, opposed to the circumferential surface of the grinding wheel, is linked with a second rejection pin through a link mechanism. A slide ...
05/23/1978
4090333Flexible grinding wheel
A flexible grinding wheel, including, a core member having a central opening and a flange portion at one end, a shaft member disposed within the central opening and extending from the core member for supporting the core member for rotation, a plurality of...
05/23/1978
4090335Partition panel for subdividing a room area
A partition panel intended for combination with similarly constructed panels in subdividing a room area that obviates prior art difficulties in using cooperating Velcro-identified fasteners. The fastener strip on the panel vulnerable to being inadvertentl...
05/23/1978
4090337Flexible form for cementitious slurry
Overlying first and second sheets of flexible fabric may be employed to make a form for slabs of concrete, or the like, when the sheets are adequately connected at spaced intervals. A novel connector for such purpose is disclosed herein and comprises a un...
05/23/1978
4090339Preformed structural panel member
Spaced, opposed plywood sheets having kerfs in their peripheral edges are integrally joined by S-shaped aluminum bars that join the edges of the plywood sheets to form panels. Each bar is provided with spaced, elongated splines that interfit into the kerf...
05/23/1978
4090342Method of packaging an extrudable explosive composition
A method of packaging an extrudable explosive composition which includes extruding the explosive composition into an extrusion having a desired cross-sectional shape and size and shrinking a heat shrinkable plastic tube constructed around the extrusion to...
05/23/1978
4090348Spinning or twisting machine ring drive
In a spinning or twisting machine in which the ring positioned about each spindle and bobbin is carried rotatably by the ring rail. A traveler is carried by each ring. A wheel is located next to each ring. An endless drive belt extends between each ring a...
05/23/1978
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