Froning Edward C: Intervertebral disc prosthesis and instruments for locating same. Caplan Julian, April 8, 1975: US3875595 (885 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 (363 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 (280 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 (179 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 (137 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 ...

Sprokel Gerard J: Birefringent liquid crystal structure. International Business Machines Corporation, Powers Henry, April 8, 1975: US3876287 (132 worldwide citation)

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

Wachtler Gunter, Straszer Wolfgang, Uri Peter, Tschernev Russi: Gaming machine. Brisebois & Kruger, April 8, 1975: US3876208 (128 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 (127 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.

Clark Robert W, Dolsen Philip C, Kinker Donald E: Teller-assisted currency dispenser system. Diebold Incorporated, Frease & Bishop, April 8, 1975: US3876864 (101 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, ...

Franklin Nick F: Venturi exhaust cooler. Wagner Minning Equipment, Schermerhorn Lee R, April 8, 1975: US3875745 (97 worldwide citation)

The kinetic energy of the exhaust gas from an internal combustion engine is utilized as a driving fluid to aspirate a large volume of quiescent ambient air as a driven fluid for cooling the exhaust gas quickly in a very short path of travel. This mode of operation is to be distinguished from convent ...