Froning Edward C: Intervertebral disc prosthesis and instruments for locating same. Caplan Julian, April 8, 1975: US3875595 (804 worldwide citation)

A collapsible plastic bladder-like prosthesis of the same external form as the nucleus pulposis of an intervertebral disc has a stem through which liquid and/or plastic is introduced to inflate the prosthesis to natural form. The top and bottom have stud-like protrusions which fit into sockets which ...

Bone Arnold R: Fastener attachment apparatus and method. Dennison Manufacturing Company, Dike Bronstein Roberts Cushman & Pfund, April 8, 1975: US3875648 (321 worldwide citation)

Fastener attachment apparatus and method for separating a fastener attachment device comprising two end bars and a filament coupled therebetween from stock comprising two undivided and continuous side members and a plurality of cross links coupled therebetween and dispensing the devices through one ...

Friedman Joshua: Electrosurgery instrument. Demetron Corporation, April 8, 1975: US3875945 (241 worldwide citation)

An electrosurgery instrument having a radio frequency oscillator energized from a power supply controlled by a switching arrangement to produce either dc, full wave rectified ac, or half-wave rectified ac at its output, depending upon whether it is desired to operate in the cut, coagulate, or fulgur ...

Marinaccio Paul J, Knight Rodney A: Process for producing microporous films and products. AMF Incorporated, Price George W, Worth Charles J, April 8, 1975: US3876738 (156 worldwide citation)

Microporous films are produced by a process of quenching a polymer solution cast in a quench bath containing a non-solvent system for the polymer to form micropores in the resulting polymer film.

Godshalk James B: Method and apparatus for determining battery performance at one temperature when battery is at another temperature. Fox Products Company, Roylance Abrams Berdo & Kaul, April 8, 1975: US3876931 (132 worldwide citation)

Lead-acid storage batteries of various load ratings are tested with at least service station accuracy by discharging the battery at a known temperature and a single predetermined load, irrespective of the actual load rating of the battery, to provide an electrical quantity representative of the term ...

Wachtler Gunter, Straszer Wolfgang, Uri Peter, Tschernev Russi: Gaming machine. Brisebois & Kruger, April 8, 1975: US3876208 (125 worldwide citation)

An electronically controlled gaming machine having poker-like rules of play, the machine comprises a matrix of card memory stages in rows and columns, each memory stage having three conditions and an output which is energised in one of the conditions. An indicator device includes a plurality of indi ...

Rennhard Hans H: Dietetic foods. Pfizer, Connolly and Hutz, April 8, 1975: US3876794 (124 worldwide citation)

Non-nutritive carbohydrate substitutes are prepared by polycondensation of saccharides in the presence of polycarboxylic acid catalyst at reduced pressure and are useful in dietetic food compositions.

Sprokel Gerard J: Birefringent liquid crystal structure. International Business Machines Corporation, Powers Henry, April 8, 1975: US3876287 (115 worldwide citation)

A field-effect liquid crystal structure having birefringent properties controlled by crossed electric fields in conjunction with crossed polarizing units.

Clark Robert W, Dolsen Philip C, Kinker Donald E: Teller-assisted currency dispenser system. Diebold Incorporated, Frease & Bishop, April 8, 1975: US3876864 (94 worldwide citation)

An automatic banking system which offers personal teller assistance to a bank customer who may be having difficulty in using an automatic banking unit at a remote customer station to carry out any one of a number of banking services offered by a complete automatic banking system, such as depositing, ...

Bossen Douglas C, Hsiao Mu Yue, Patel Arvind M: Archival data protection. International Business Machines Corporation, Murray James E, April 8, 1975: US3876978 (93 worldwide citation)

This specification describes a system for preventing the catastrophic loss of data in one storage unit of a storage system comprised of a plurality of such storage units. In this system one of the plurality of storage units is used to store parity bits for the storage system, bit position by bit pos ...

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