Blevins Parker R, Terry David W, Thurmond Ray H: Program security device. International Business Machines Corporation, September 28, 1971: US3609697 (290 worldwide citation)

A program security device and method for a digital computer including a code generating circuit for providing a unique and predetermined output code to the digital computer for periodic comparison with identification information located within the stored program of the computer. If the identificatio ...

Merrill Edward W: Method of administering drugs and capsule therefor. N A, September 28, 1971: US3608549 (163 worldwide citation)

An implantable capsule for delivering a medicament to live animals having a permeable elastomeric wall and containing a mixture of medicament and matrix material which melts between 40.degree. C. and 47.degree. C. The capsule also contains a metal coil capable of being inductively heated by a coil e ...

Halstead William S: Inductive carrier communication systems. Carrier Communication, September 28, 1971: US3609247 (155 worldwide citation)

An integrated multiple-function communication system for highways, railroads and other applications, the system comprising a wideband coaxial trunk cable with associated amplifier/repeaters for long-distance point-to-point transmission of a plurality of carrier signals combined with inductive-signal ...

Pike Brian R: Multiple compartment package. Rogers V Wayne, Schneider William S, Schneider Carl F, September 28, 1971: US3608709 (150 worldwide citation)

A multiple-compartment laminated package is provided which is suitable for holding in separate compartments different substances which can be mixed together within the package upon breaking the barrier between the separate compartments. This barrier can be broken by the application of external press ...

Miller Daniel G: Method for the biopsy of subcutaneous masses. September 28, 1971: US3608539 (111 worldwide citation)

An instrument for the biopsy of subcutaneous masses includes an arcuate cannula having a serrated distal cutting end and is provided for alternative insertion, a correspondingly curved pointed stylet and a flexible ejector element. In performing a biopsy, and the skin is punctured and the cannula en ...

Gunthert Richard J: Self-aligning kelvin probe. International Business Machines, September 28, 1971: US3609539 (103 worldwide citation)

Electrical contact device for Kelvin probing comprising two contact bars separated by an insulator, said bars having self-aligning shaped contact ends for self-aligning upon a protruding electrical contact on the body to be probed.

Murphy Peter H: Apparatus for offsetting centrifugal force affecting motor vehicles. September 28, 1971: US3608925 (100 worldwide citation)

The invention is a suspension for motor vehicles and the like which adjustably controls the wheel height of the vehicle relative to the chassis during turns. Sensors convert vehicle turn angle and velocity information into electrical signals for initiating pressure changes in selected expansible spr ...

Briskin Theodore S, Ward Geoffrey R: Smokable product of oxidized cellulosic material. Sutton Research Corporation, September 28, 1971: US3608560 (91 worldwide citation)

A smokable product of oxidized cellulosic material formulated to include combustible carbon in an amount within the range of 2-50 percent by weight of the oxidized cellulosic material for the improvement in the smoking characteristics of the smoking product forward thereof. The combustible carbon pa ...

Castellano Angelo: Electrical receptacle. September 28, 1971: US3609647 (85 worldwide citation)

An electrical receptacle adapted to be secured in a power outlet box for interconnecting the prongs of a plug receptacle or wall switch to the powerlines leading into the outlet box. The receptacle has a plastic casing including a pair of metallic tubular conductors extending along opposite sidewall ...

Lewis Terreil D: Oral hygiene device. September 28, 1971: US3608548 (79 worldwide citation)

An oral hygiene device comprising a brush having a tubular handle with rows of bristles extending laterally from one end and a discharge nozzle positioned between the outside rows of bristles substantially contacting the adjacent bristle tufts to brace such tufts and provide a clear discharge space ...