11
Leslie T Applegate: Knee brace with resilient pad surrounding patella. Surgical Appliance, Wood Herron & Evans, September 8, 1981: US04287885 (120 worldwide citation)

A knee brace including an elastic sleeve stretchable circumferentially, a flexible sheet non-stretchable in a circumferential direction secured to the interior of the sleeve configured and dimensioned to surround a substantial portion of the user's patella, and a resilient pad stretchable at least c ...


12
Keith O Rolfe, Clifford E Smith: Container for transported goods. Schwartz Jeffery Schwaab Mack Blumenthal & Koch, September 8, 1981: US04287997 (99 worldwide citation)

A container for transported goods can be carried by a road transport vehicle arranged longitudinally or transversely, its length being approximately equal to its width. Supports fixed under the container define passages to receive, from either end and either side, the arms of a fork-lift vehicle, an ...


13
Wyn K Swainson, Stephen D Kramer: Three-dimensional systems. Formigraphic Engine Corporation, Townsend and Townsend, September 8, 1981: US04288861 (91 worldwide citation)

A multiple beam or "multiphoton" absorption effect is used for creating three-dimensioal sensible objects including optical elements and three-dimensional computer-type data storage and retrieval systems. The objects and systems are made according to the invention by at least two beams of optical el ...


14
John R Setterberg Jr: Well sealing system. Otis Engineering Corporation, Thomas R Felger, September 8, 1981: US04288082 (90 worldwide citation)

A well sealing system for blocking fluid flow through an annulus partially defined by a tubing string disposed within a casing string. A metal seal ring is compressed and radially expanded to form a primary metal to metal seal between the exterior of the tubing string and the interior of the casing ...


15
Steven R Erbstoesser: Method of selective diversion in deviated wellbores using ball sealers. Exxon Production Research Company, Robert B Martin, September 8, 1981: US04287952 (85 worldwide citation)

There is disclosed a method for selective diversion in a deviated wellbore comprising generally perforating the casing with a first group of perforations at the top or bottom abutting an imaginary plane which is substantially in the vertical and extends along the longitudinal axis of the casing and ...


16
Arthur M Schulz: Headgear with energy absorbing and sizing means. Riddell, McDougall Hersh & Scott, September 8, 1981: US04287613 (83 worldwide citation)

A headgear comprising a helmet shell and a combination of energy-absorbing and sizing means mounted on the inside surface of the shell. The combination includes a crown-engaging structure either in the form of a web suspension or an air-inflatable means. These pad structures comprise curved assembli ...


17
James O Sutton II: Computer controlled backhoe. Head & Johnson, September 8, 1981: US04288196 (83 worldwide citation)

A backhoe includes a computer capable of automatically controlling the depth or lowermost point of the backhoe bucket. The computer is programmable to provide level operation of the backhoe, will have preset common depths and programmable depths, and further include an automatic empty and return cyc ...


18
Wolfgang Kreft: Accelerometer and evaluation circuit. Volkswagenwerk Aktiengesellschaft, Brumbaugh Graves Donohue & Raymond, September 8, 1981: US04287765 (81 worldwide citation)

The combination of an accelerometer and an evaluation circuit are disclosed for controlling a safety device in an automobile. The accelerometer includes a pair of electromagnetic circuits having a sensor coil and arranged at an angle other than 180.degree. relative to each other. A movable member is ...


19
Silvio G Bilanceri, Gary L Kanner, Michael B Uffer: Battery charger system and method adapted for use in a sterilized environment. Black & Decker, Harold Weinstein, Leonard Bloom, Edward D Murphy, September 8, 1981: US04288733 (80 worldwide citation)

A battery charger system suited for use in a sterilized environment such as an operating room includes a sterilizable battery-containing pack adapted for connection to a non-sterilized battery charger through a sterilizable tray-interface. The tray-interface includes connecting structure on an upper ...


20
Guy Durand: Coil loop type cable tie. Le Grand, Henry R Lerner, September 8, 1981: US04287644 (76 worldwide citation)

A coil toop type cable tie of one-piece molded plastic construction having a flexible strap and a fastening head at one end thereof. The fastening has a passageway running parallel to the strap and a hinged pawl extending into the passageway and having at least one tooth adapted to mesh with ratchet ...