1
John C Todd: Method of producing viscous materials from subterranean formations. Petro Canada Exploration, Canada Cities Services, Imperial Oil, Hubbard Thurman Turner Tucker & Glaser, April 18, 1978: US04084637 (257 worldwide citation)

A method of producing viscous materials from subterranean formation comprises a plurality of steps. At least two wells are drilled and completed into the subterranean formation that contains the viscous material. At least one of the wells is completed as an injection well and one of the wells is com ...


2
Marian I Ionescu, Bruce E Fettel: Prosthetic tissue heart valve. Shiley Laboratories Incorporated, Knobbe Martens Olson Hubbard & Bear, April 18, 1978: US04084268 (194 worldwide citation)

A tissue heart valve has a cloth-covered stent which provides several layers of padding over the stent edges and an integral sewing ring while maximizing the internal valve diameter for a given size heart annulus. No edges of the cloth are exposed. A continuation of the pledget covers all knots of t ...


3
Herbert Mittleman: Fluid transfer device. Baxter Travenol Laboratories, George H Gerstman, Paul C Flattery, John P Kirby Jr, April 18, 1978: US04084606 (147 worldwide citation)

A fluid transfer device is provided for administration of medicament to a patient. The device includes a plastic housing having a first inlet, a second inlet and an outlet, and an umbrella check valve coupling the inlets and outlets. The umbrella check valve is positioned so as to permit flow from t ...


4
David August Horsma, Stephen Hunter Diaz: Heat-recoverable sealing article with self-contained heating means and method of sealing a splice therewith. Raychem Corporation, Lyon & Lyon, April 18, 1978: US04085286 (109 worldwide citation)

A heat recoverable article is so configured that it can be positioned around a pipe or cable joint or splice which it is desired to encapsulate or seal. Means for sealing a splice involving a plurality of cables of the same or varying sizes are provided. The article includes a closure means for hold ...


5

6

7
Howard Alliger: Germ killing composition and method. Kenneth S Goldfarb, April 18, 1978: US04084747 (98 worldwide citation)

Germ-killing composition produced by contacting an acid material, preferably consisting of at least about 15% by weight of lactic acid, with sodium chlorite in aqueous media, the amount of acid being sufficient to lower the PH of the aqueous media to less than about 7. Methods of disinfecting and sa ...


8
Frederick A Simmons: Screw heads. Phillips Screw Company, Wolf Greenfield & Sacks, April 18, 1978: US04084478 (91 worldwide citation)

A screw head is provided with projections on selected of the driver-engageable surfaces of the head to interlock with surfaces and edges of the driver to reduce the tendency for the driver to slip out of engagement with the screw during driving and also to provide a temporary stick-fit between the d ...


9
Irwin L Ginsberg: Steam bath device for shower. Caesar Rivise Bernstein & Cohen, April 18, 1978: US04084271 (90 worldwide citation)

Apparatus for use in a shower stall to simulate a steam bath. In one embodiment the apparatus comprises a diverter valve adapted to be connected between a conventional shower head in the stall and the pipe carrying hot water thereto. A flexible conduit is connected to the diverter valve and includes ...


10
George Edward Zenk, Robert Joseph Johnson, Charles Newell Miller: Membrane-type touch panel. Control Data Corporation, Edward L Schwarz, April 18, 1978: US04085302 (86 worldwide citation)

A location sensitive touch panel for use on a rigid substrate. The substrate carries a first set of conductive strips. A resilient plastic membrane overlaying it carries a second set of conductive strips orthogonal to and spaced from the first set. Finger pressure can cause electrical contact betwee ...