1
Aane A Oskam: Adjusting device for motorcar mirrors. Industrie Koot, Wenderoth Lind & Ponack, August 4, 1981: US04281899 (228 worldwide citation)

A device for adjusting the mirror of an automotive vehicle, as disclosed in U.S. Pat. No. 4,116,538, includes drive and transmission devices consisting of two motors, each provided with a planetary transmission system mounted on a motor shaft, the two motor transmission systems being arranged mirror ...


2
Frans F Jobsis: Method and apparatus for monitoring metabolism in body organs. Duke University, B B Olive, August 4, 1981: US04281645 (184 worldwide citation)

A spectrophotometric transillumination method and apparatus are directed to non-invasive, continuous, atraumatic, in vivo, in situ monitoring of metabolism in a body organ. In the described applications, measuring and reference wavelengths within the near infrared region, i.e., 700-1300 nm, are util ...


3
Daniel Silverman: Method for monitoring the recovery of minerals from shallow geological formations. Daniel Silverman, August 4, 1981: US04282587 (178 worldwide citation)

In the process of recovering minerals, such as hydrocarbons from shallow tar sands, and the like, one method is to create a shallow horizontal fracture within the tar sand. The size and shape of the perimeter is determined, and one or more secondary boreholes are drilled to the formation inside of t ...


4
Tetsu Taguchi: Speech analyzer comprising circuits for calculating autocorrelation coefficients forwardly and backwardly. Nippon Electric, Sughrue Rothwell Mion Zinn and Macpeak, August 4, 1981: US04282405 (172 worldwide citation)

A speech analyzer with improved pitch period extraction and improved accuracy of voiced/unvoiced decision comprises circuits for calculating autocorrelation coefficients forwardly and backwardly with respect to time. Reference members for the forward and the backward calculation are those successive ...


5
Stephen R Duggan: Implantable telemetry transmission system for analog and digital data. Medtronic, Schroeder Siegfried Ryan Vidas Steffey & Arrett, August 4, 1981: US04281664 (156 worldwide citation)

An improved telemetry transmission system for transmitting electrocardiographic information, indications of the occurrence of the pacing pulse and for transmitting digitally encoded information from an implanted pacemaker, an implanted drug dispensing device, or other implanted device, to a remote r ...


6
George E Chadima Jr, Vadim Laser: Instant portable bar code reader. Norand Corporation, Hill Van Santen Steadman Chiara & Simpson, August 4, 1981: US04282425 (142 worldwide citation)

A portable instant bar code reader including a hand-held reader unit having a flash type illuminator. The flash type illuminator is triggered to illuminate a bar code label positioned adjacent to a light receiving window of the reader. Reflections from the bar code label are transmitted through the ...


7
Akio Ochiai, Noriyuki Iida, Yasumasa Yoshimura: Automatic antiglare rearview mirror. Murakami Kaimeido, Robert E Burns, Emmanuel J Lobato, Bruce L Adams, August 4, 1981: US04281898 (138 worldwide citation)

A mirror assembly capable of providing an image of high or low brightness is pivotally supported by a housing or other stationary support, for movement between two operating positions to provide the high and low brightness images. For automatic actuation of the mirror assembly, a light sensitive ele ...


8
Birol Kuyel: Methods and apparatus for generating plasmas. Western Electric Co, B W Sheffield, A M Tobia, August 4, 1981: US04282267 (123 worldwide citation)

An RF-excited radial-flow, cylindrical plasma reactor (10) includes a toroidal waveguide (17) of rectangular cross-section connected to a microwave source (21). One of the reactive species (37) is flowed through the waveguide and pre-ionized, thus, permitting independent control over the activation ...


9
Stanley W Bynre, Barry J Tompkins, Ernest B Hayes: Production of tobacco smoke filters. American Filtrona Corporation, Holman & Stern, August 4, 1981: US04281671 (106 worldwide citation)

Tobacco smoke filters comprising a rod of tobacco smoke filtering material, such as cellulose acetate tow including a thread incorporated therein or a tape wrapped therearound, the thread or tape carrying a smoke-modifying agent, such as a flavoring material and methods and apparatus for forming suc ...


10
Uwe Heitmann, Joachim Buchegger, Werner Hinz: Apparatus for increasing the permeability of wrapping material for rod-shaped smokers products. Hauni Werke Korber & Co KG, Peter K Kontler, August 4, 1981: US04281670 (103 worldwide citation)

Webs which are to be converted into wrappers for filter rod sections, cigars, cigarillos or cigarettes, or the wrappers of such articles, are perforated by one or more laser beams in the machine wherein the articles are produced. The permeability of wrappers can be changed by increasing or reducing ...