Joseph P Francini, Einar L Asbo, Vincent Boston: Transaction card with magnetic stripe emulator. Visa International Service Association, Limbach Limbach & Sutton, October 20, 1987: US04701601 (504 worldwide citation)

A transaction card is disclosed having a magnetic stripe emulator. The transaction card is adapted for use with presently available transaction terminals that include a sensor for reading a magnetic stripe. The subject card includes a transducer for generating a varying magnetic field corresponding ...

Semion Resnick, Jacob Goldman: Cartridge assembly for a surgical stapling instrument. Semion Resnick, Browdy and Neimark, October 20, 1987: US04700703 (468 worldwide citation)

A disposable cartridge assembly for a surgical stapling instrument wherein an anvil carrying component comprises constituent anvil elements articulated with respect to each other and presenting an annular anvil surface. A biasing element is provided for biassing the elements into a retracted positio ...

William New Jr, James E Corenman: Calibrated optical oximeter probe. Nellcor Incorporated, October 20, 1987: US04700708 (350 worldwide citation)

A probe apparatus for use with an optical oximeter is disclosed. A pair of light emitting diodes emit light of known narrow wavelengths through an appendage of a patient onto a photosensor. A resistor of coded known resistance is used to enable the oximeter to calculate the co-efficient of extinctio ...

Keith D Jacob: Day/night mirror. C D Marketing, Rhodes and Boller, October 20, 1987: US04701022 (270 worldwide citation)

A day/night rearview mirror comprises an optical medium which is electrically driven between transmissive and opaque states. The mirror comprises a housing containing a circuit board assembly over which a mirrored reflecting surface is disposed. The mirrored reflecting surface is in turn overlaid by ...

Philip S Carter, John F Krumme: Shielded heating element having intrinsic temperature control. Metcal, Hall Myers & Rose, October 20, 1987: US04701587 (244 worldwide citation)

A heating structure is described having both a return conductor and a heating element consisting of a substrate of a non-magnetic material having high thermal and electrical conductivity, clad with a surface layer of a ferromagnetic material of relatively low electrical conductivity.

Howard C Welborn Jr: Supported polymerization catalyst. Exxon Chemical Patents, M B Kurtzman, October 20, 1987: US04701432 (233 worldwide citation)

An olefin polymerization catalyst comprising (a) a supported transition metal containing component comprising the support treated with at least one metallocene and at least one non-metallocene transition metal compound, and a cocatalyst comprising an alumoxane and an organometallic compound of a met ...

Melchert H Froling, Herman J R Schmitz: Television receiver comprising a teletext decoding circuit and a page number memory. U S Philips Corporation, Thomas A Briody, William J Streeter, Gregory P Gadson, October 20, 1987: US04701794 (216 worldwide citation)

A television receiver which is suitable for displaying teletext pages comprises a control system including a microcomputer. The microcomputer is coupled to a volatile memory which comprises a plurality of page number registers. A page number can be temporarily stored in each of these registers. With ...

Steven C Jasper: Method of doppler searching in a digital GPS receiver. Motorola, Thomas G Berry, James E Jacobson, Joseph T Downey, October 20, 1987: US04701934 (201 worldwide citation)

An improved method of doppler searching in a digital GPS receiver is described. According to the principles of the present invention, an N-point fourier transform is performed on samples of a down converted GPS signal representing the entire range of Doppler-shifted GPS carrier frequencies. The magn ...

Hans Reinhard Knepper: Method of automatically steering self-propelled floor-cleaning machines and floor-cleaning machine for practicing the method. Felfe & Lynch, October 20, 1987: US04700427 (198 worldwide citation)

The invention concerns a method of automatically steering a self-propelled floor-cleaning machine along a predetermined path of motion on a limited area to be worked, wherein a sequence of path segments stored in a data memory is retrieved, and the path segments travelled by the machine, and wherein ...

John R Waterworth: Data compression system. Ferranti, Kerkam Stowell Kondracki & Clarke, October 20, 1987: US04701745 (195 worldwide citation)

A data compression system includes an input store (1) for receiving and storing a plurality of bytes of data from an outside source. Data processing means for processing successive bytes of data from the input store includes circuit means (21-25) operable to check whether a sequence of bytes is iden ...