1
Leonard J Bonnell, Edward H McHugh, Douglas D Sjostrom, Lanny L Johnson: Surgical instrument suitable for closed surgery such as of the knee. Dyonics, May 20, 1980: US04203444 (565 worldwide citation)

A surgical instrument useful in joint surgery for instance closed surgery of the knee. When in the form of a rotary vacuum shaver it comprises an external stationary tube having a side-facing, axially extending shaving port and an internal rotary blade capable of rotating at a slow speed, of the ord ...


2
Wilhelm A Hofert, Peter F Schlussel, Anton H Sutor, Georg J Ullrich: Precision spring lancet. Hellige, Norman E Brunell, W R Thiel, May 20, 1980: US04203446 (288 worldwide citation)

A spring lancet holder for creating accurate standardized, reproducible puncture wounds in the skin for medical diagnostic purposes is disclosed in which accuracy and reproducibility is improved by minimizing the recoil transmitted to the lancet holder by actuation of the drive mechanism which pushe ...


3
Anthony P Bogacki: Meter terminal unit for use in automatic remote meter reading and control system. General Electric Company, Robert E Brunson, May 20, 1980: US04204195 (137 worldwide citation)

A meter terminal unit for use in automatic meter reading systems of the type including a control center for transmitting commands to and receiving measurement data from the terminal unit via a distribution unit serving several terminal units. The terminal unit is selectively responsive to commands g ...


4
Joseph D Grandine II: Processes of making a porous membrane material from polyvinylidene fluoride, and products. Millipore Corporation, Irons and Sears, May 20, 1980: US04203848 (136 worldwide citation)

Covers processes for making microporous membranes and molecular filtration membranes from vinylidene fluoride polymers, and the products so produced. A continuous version of the process consists of applying a layer of a solution of a polyvinylidene fluoride polymer to a rigidly supported surface of ...


5
Malcolm Dye, Richard C J Hyde: Data processing system power control. International Business Machines Corporation, Frederick D Poag, May 20, 1980: US04204249 (134 worldwide citation)

The data processing system consists of a plurality of interconnected data processing subsystems one of which is a service subsystem devoted to servicing the remainder of the system and provides communication between the operator and the system to facilitate maintenance. A plurality of power supply u ...


6
Nagashige Takahashi: Device for controlling curvature of an end section in an endoscope. Sughrue Rothwell Mion Zinn and Macpeak, May 20, 1980: US04203430 (117 worldwide citation)

A device for controlling the curvature of an end section in an endoscope is provided with tension control members for regulating the tensions in the actuating wires and adjustment members for defining the maximum movement of the end section. The end section is connected by two wires extending throug ...


7
Dante S Giardini: Plasma jet ignition engine and method. Ford Motor Company, Joseph W Malleck, Keith L Zerschling, May 20, 1980: US04203393 (114 worldwide citation)

A method and apparatus for carrying out combustion in an internal combustion engine of the stratified charge type is disclosed. The piston and cylinder are shaped in a manner to define a variable volume space and a main combustion chamber residing as a cavity in the top face of the piston, the cavit ...


8
Lo Hou On: Shower heads. Hexagear, Price Heneveld Huizenga & Cooper, May 20, 1980: US04203550 (111 worldwide citation)

A shower head comprises a water chamber and attachment means for connecting the water chamber to a water conduit. A rotor in the water chamber is rotated by swirling motion of the water and causes pulsating emission of water from holes in an end face of the water chamber. A movably mounted outer cas ...


9
Felix Theeuwes: Osmotic system with volume amplifier for increasing amount of agent delivered therefrom. Alza Corporation, Paul L Sabatine, Thomas E Ciotti, Edward L Mandell, May 20, 1980: US04203439 (98 worldwide citation)

An osmotic system for delivering a beneficial agent is disclosed. The system comprises a wall surrounding a compartment and has a passageway through the wall for delivering agent from the compartment. The wall is formed of a material permeable to the passage of an external fluid and impermeable to t ...


10
Claude Guestaux: Radiation-sensitive elements having an antistatic layer containing amorphous vanadium pentoxide. Eastman Kodak Company, A P Lorenzo, May 20, 1980: US04203769 (95 worldwide citation)

An antistatic layer of a radiation-sensitive element, such as a photographic film or paper, is formed by coating and drying of an antistatic composition comprising an aqueous solution of an amorphous antistatic material, the aqueous solution having been produced by forming a melt comprised of at lea ...