1
Charles Sperry
Sperry Charles R, Gibson Roger L: Pressurized container food valve. Synectics Development Corporation, January 5, 1971: US3552608 (2 worldwide citation)

A pressurized container valve for particulate matter and the like having a rotatable sphere with a diverging aperture extending nondiametrically therethrough. The sphere is contained in a sleeve with a seal between the sphere and sleeve across a diameter of the sphere. The seal is shaped to provide ...


2
Astafiev Georgy Vasilievich, Ozhgikhin Anatoly Nikolaevich, Babkin Svetoslav Ivanovich, Androsov Pavel Iosifovich, Ivanova Tatiana Lukianovna: Instrument for circular suturing of hollow body organs. January 5, 1971: US3552626 (219 worldwide citation)

An instrument is provided for placing circular staple anastomoses between the organs of the alimentary canal during a surgical operation. The instrument has an extension tube for engaging interchangeable operating heads of different diameter, the operating heads carrying a staple head and a staple e ...


3
Pierie Will R, Raible Donald A, Swendson David L: Controllable tip guide body and catheter. American Hospital Supply Corporation, January 5, 1971: US3552384 (165 worldwide citation)

A device for general and selective angiography and other purposes having a handle, controllable tip guide body, injection tube unit and catheter outer body wherein the tip of the guide body may be bent, rotated, exposed and sheathed in the catheter by control means on the handle and injection tube u ...


4
Lee Ray H: Electromechanical light valve. Texas Instruments Incorporated, January 5, 1971: US3553364 (100 worldwide citation)

An electromechanical light valve in an array of many such valves for controlling the transmission of light in continuously changing patterns. Each light valve consists of a housing having grounded conducted walls for shielding the interior thereof from external electrostatic forces produced by surro ...


5
Allgower Martin, Perren Stefan, Russenberger Max E: Osteosynthetic pressure plate construction. Synthes, January 5, 1971: US3552389 (92 worldwide citation)

An osteosynthetic pressure plate includes a slot formation for receiving a bone-fixing screw which is adapted to be secured to a bone part which is to be mended. The slot is formed with an edge which includes an oblique portion or ramp having an inclination such that when it is engaged by the unders ...


6
Brown Cicero C: Apparatus for rotary drilling of wells using casing as drill pipe. January 5, 1971: US3552509 (89 worldwide citation)

A drilling system employing casing as drill pipe and a bit section which is bodily insertable and removable through the casing and releasably attachable thereto for rotation with the casing.


7
Stewart Weldon R: Valve controlled fluid programmer. January 5, 1971: US3552436 (76 worldwide citation)

A fluid programmer utilizing a plurality of manually actuated valves for programming fluid-controlled machines to enable the function, sequence or timing thereof to be accurately and rapidly varied, by altering or adjusting the fluid circuits thereto emanating from a plurality of fluid supply source ...


8
Brown Cicero C: Apparatus for rotary drilling of wells using casing as the drill pipe. January 5, 1971: US3552508 (75 worldwide citation)

A drilling system employing casing as drill pipe and a bit section which is bodily insertable and removable through the casing and releasably attachable thereto for rotation with the casing.


9
Brown Cicero C: Apparatus for rotary drilling of wells using casing as the drill pipe. January 5, 1971: US3552510 (73 worldwide citation)

A drilling system employing casing as drill pipe and a bit section which is bodily insertable and removable through the casing and releasably attachable thereto for rotation with the casing.


10
Brown Cicero C: System for rotary drilling of wells using casing as the drill string. January 5, 1971: US3552507 (71 worldwide citation)

A rotary well drilling system employing well casing as the drill string; a bit assembly having radially expansible cutters bodily insertable and removable through the bore of the casing and releasably connected thereto; and a drive connection means releasably insertable into the upper end of the cas ...



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