41
Kemmerly Richard C, Kaner Gary M, Merritt Gary C: Telephone audio program system. Courtesy Communications Corporation, D Carl Richards et al, February 26, 1974: US3794774 (41 worldwide citation)

The specification discloses a system for selectively applying an audio program to incoming telephone lines placed in hold conditions. The system is connected to the exterior cord of a conventional telephone set having a hold switch and a plurality of line switches operable between two positions to o ...


42
Czernik Daniel E, McDowell Donald J: Gasket. Felt Products Mfg Co, Dressler Goldsmith Clement & Gordon, February 26, 1974: US3794333 (41 worldwide citation)

A method of making a gasket and a gasket having an elastomeric sealing pattern and a control pattern for limiting the degree of compression of the sealing pattern. A relatively incompressible material, such as an epoxy resin formulation is positioned on the face of a gasket to protect a relatively c ...


43
Tate John E, Jackson Robert L: Fluid treating filter. American Air Filter Company, February 26, 1974: US3793692 (40 worldwide citation)

An improved filter for treating fluids utilizing a frame of unitary construction. The frame is constructed from a sheet of expanded substantially rigid material having solid sections disposed between sections of expanded material. The frame is adapted for folding into a box-like configuration with t ...


44
Fuller Frederick S: Occupant restraint system. General Motors Corporation, Furman Herbert, February 26, 1974: US3794349 (40 worldwide citation)

An occupant restraint system for a vehicle body includes an inflatable cushion mounted within the instrument panel and deployable through an opening of the panel when inflated from a source of pressure fluid. A cover for the opening of the instrument panel includes inner and outer members of plastic ...


45
Beck Jerry G, Dickason Richard T, Ray Donald J: Vehicle windshield. Ford Motor Company, Johnson William E, Zerschling Keith L, February 26, 1974: US3794809 (39 worldwide citation)

A vehicle windshield is disclosed which is constructed of an inner and an outer glass lite. These lites have first and second laminating interlayers therebetween. A transparent, electrically conductive material is disposed between the first and the second laminating interlayers. The conductive coati ...


46
De Line John W, Ida Nobel N: Frangible opening means for a container lid. De Line John W, Reilly John E, February 26, 1974: US3794206 (39 worldwide citation)

A container lid for beverage containers and the like has a tear strip formed as a unitary part of the closure which can be at least partially separated from the closure by pressing it downwardly to displace it into the container about a hinge point in such a way as to leave a protected opening for r ...


47
Auer Jr John H, Marsh Donald B, Sibley Henry C: Multi-computer vehicle control system with self-validating features. General Signal Corporation, Kleinman Milton E, February 26, 1974: US3794834 (39 worldwide citation)

An automatic vehicle control system for controlling the operation of a vehicle from a set of parallel operating computers in a central control station. A data communication link transmits vehicle performance reports from the vehicle to the central control station and transmits vehicle command messag ...


48
Scott Walter P: Method and apparatus for directing a radiation beam toward a tumor or the like. Richards Shefte & Pinckney, February 26, 1974: US3794840 (38 worldwide citation)

Method and apparatus for accurately directing a therapeutic radiation beam to a tumor or the like within a human body, including the implantation at the tumor of a source emitting radioactive rays traveling in a straight line therefrom, sensing this ray emission to determine a straight line path to ...


49
Brenner Natalie S: Suction system for skin treatment. February 26, 1974: US3794035 (38 worldwide citation)

A power operated vacuum pump unit has a chamber connected to a vacuum pump maintained under negative pressure. There are four separate shut-off valves all connected to the chamber in each of which a fixed pressure is pre-set at amounts differing one from another, all of which are accessible from one ...


50
Colwill Richard H, Dewey William E, Vanbennekom Hans Lochmann, Mowry Jr William H: Bursting and separating apparatus for continuous forms. Burroughs Corporation, Fissell Jr Carl, February 26, 1974: US3794228 (38 worldwide citation)

Apparatus for automatically, continuously bursting and separating individual items at relatively high speed from a continuous series of items such, for example, as manifolded document forms. The invention employs one or more oppositely disposed, substantially rigid, yet deformable members disposed i ...