1
McDonald Bernard: Surgical retractor. Robert L Parker et al, January 1, 1974: US3782370 (131 worldwide citation)

This surgical retractor has a pair of opposed slat-like sides interconnected by an elastic V-shaped end piece so that the side slats are elastically bowed in arcuate paths with the concave sides of the slats facing each other. Each of the slats has cooperating ratchet and pawl arrangements to permit ...


2
Lieberman Irving: Method of explosively expanding sleeves in eroded tubes. Whittaker Corporation, Donald E Nist et al, January 1, 1974: US3781966 (109 worldwide citation)

The method comprises explosively expanding a first metallic sleeve into engagement with a severely eroded section of a tube and thereafter explosively expanding a second metallic sleeve of approximately the same diameter as the first sleeve into engagement with the first sleeve to cover cracks forme ...


3
Eichelberger Edward Baxter: Level sensitive logic system. International Business Machines Corporation, John F Osterndorf et al, January 1, 1974: US3783254 (104 worldwide citation)

A generalized and modular logic system for all arithmetic/logical units of a digital computer. Each arithmetic/logical unit of a computer is partitioned into sections formed of combinational logic networks and storage circuitry. The storage circuitry is sequential in operation and employs clocked dc ...


4
Rychlik Frank J: Sterile plastic shield. Illinois Tool Works, Robert W Beart et al, January 1, 1974: US3782377 (104 worldwide citation)

The present invention relates generally to improvements in protective shields for application to a body surface area in which an infusion needle has been inserted. An embodiment of the invention disclosed herein includes a relatively rigid transparent cup-shaped cover or shield member and a laterall ...


5
Martelli Mario, Martelli Mario: Document recognition systems. Nichol M Sandoe et al, January 1, 1974: US3782543 (102 worldwide citation)

A bank note recognition system includes an optical analyser for scrutinising the watermark, selected areas of print on the surface of the bank note, the wire band in the bank note and the density of the paper of the bank note. The analyser in its simplest form includes a lamp for illuminating a disc ...


6
Spence Mack L: Method and apparatus for automatic ranging with variable power telescopic gun sight. Proctor Llewellyn A, January 1, 1974: US3782822 (98 worldwide citation)

In a variable power telescope gun sight, provided with stadia and aim point at the rear focus between the ocular lens and zoom system, an aim point is located above the optic center and correlated with bullet trajectory. The distance of off set of the aim point is such that, at minimum power, the ai ...


7
Rosenberg David J: Disposable gas filter. Pall Corporation, Janes & Chapman, January 1, 1974: US3782083 (76 worldwide citation)

A disposable filter is provided that is especially suited for filtering gases, and for manufacture in a small size, comprising a housing in at least two portions defining therewith a fluid chamber with two fluid ports, and a filter element in sheet form extending across the fluid chamber and held at ...


8
Kurtz Harvey N, Gourley Charles A: Solderless electrical connection system. Litton Systems, Carpenter M Michael, Rose Alan C, Levine Alfred B, January 1, 1974: US3783433 (72 worldwide citation)

A solderless electrical connection system is shown having a main mounting board with a plurality of plated-through holes therein. A conductive electrical contact including a central section is pressed into the plated-through holes with the central section thereof flexing as it is urged into the hole ...


9
Schmidt Peter Jurgen, Kizler Harald: Method and apparatus to reduce noxious components in the exhaust gases of internal combustion engines. Robert Bosch, Flynn & Frishauf, January 1, 1974: US3782347 (68 worldwide citation)

The composition of exhaust gases from internal combustion engine is sensed, particularly the oxygen component thereof, and a sensed signal is derived, which is applied to a threshold detector, which triggers whenever the sensed signal passes a certain threshold value. The trigger signal controls and ...


10
Pavkovich John M: Computer assisted radiation therapy machine. Varian Associates, Cole Stanley Z, Herbert Leon F, January 1, 1974: US3783251 (66 worldwide citation)

A computer assisted radiation therapy machine is disclosed. The machine includes a rotatable gantry having a radiation source portion which is rotatable about a patient treatment couch. Geometric and dose parameters of the machine for defining a prescribed treatment plan of radiation are stored in t ...



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