61
Herwig Wrulich, Otto Schetina, Alfred Zitz: Bit arrangement for a cutting tool. Voest Alpine Aktiengesellschaft, Cushman Darby & Cushman, January 27, 1981: US04247150 (52 worldwide citation)

The rotary-shaft bit (7) inserted in a bushing (3) fixedly mounted, encloses by means of a hollow-cylindrical extension (9) an annular extension (5) of the bushing (3) and projecting in axial direction of said bushing (3), and in this manner is supported closer to the tip of the bit (8) in order to ...


62
Monty E Harris: Cementing head apparatus and method of operation. The Dow Chemical Company, January 27, 1981: US04246967 (50 worldwide citation)

A cementing head apparatus is disclosed, for injecting a cementing plug into a well casing. The basic apparatus is made up of a head unit, manifold unit, and a tubular mandrel slidable within the manifold unit. Prior to injecting cement into the well casing, the cementing plug is mounted in the head ...


63
George Pretnick: Car ramp and drip pan assembly. Baldwin Egan Walling & Fetzer, January 27, 1981: US04246982 (50 worldwide citation)

A car ramp and drip pan assembly for placement under parked motor vehicles to catch fluid and particle drippings therefrom including a rectangular tray for catching the drippings, a pair of elongated racks positioned in the tray parallel to the sides of the tray and upon which the vehicle is driven ...


64
Robert J Schiller, Neal M Alderman: Fuel delivery control and registration system. Veeder, Prutzman Kalb Chilton & Alix, January 27, 1981: US04247899 (50 worldwide citation)

A self-service gasoline station fuel delivery control and registration system having a central control unit with a display console, operating keyboard and master microprocessor module; separate slave microprocessor modules for the gasoline pumps for separately controlling the pumps and accumulating ...


65
James L Fouss, Donald W Sting, John J Parker, Robert Biango: Internal coupling structure and joint for pipe or tubing. Hancor, Fay & Sharpe, January 27, 1981: US04247136 (50 worldwide citation)

A coupler structure which facilitates the internal joining of a first length of hollow plastic pipe having internal corrugations defined by a plurality of alternating peaks and valleys to a second length of similar pipe or to some other structure. The coupler is molded from plastic to have at least ...


66
Chester E Stromswold, John T Apostolos: Spread spectrum detector. Sanders Associates, Louis Etlinger, Ronald Reichman, January 27, 1981: US04247939 (50 worldwide citation)

A spread spectrum detector utilizes compressive receiver techniques and squaring of the incoming signal to detect the presence of a spread spectrum signal and to obtain its center frequency, with the squaring cancelling the pseudo-random code. Once having determined the center frequency, the gated o ...


67
Charles R Morelock: Process for producing a composite of polycrystalline diamond and/or cubic boron nitride body and substrate phases. General Electric Company, Jane M Binkowski, James C Davis Jr, Leo I MaLossi, January 27, 1981: US04247304 (49 worldwide citation)

A shaped confined structure composed of a mass of diamond and/or cubic boron nitride crystals coated with elemental non-diamond carbon in contact with a carbonaceous substrate is infiltrated by fluid silicon producing a like-shaped composite of a polycrystalline body phase integrally bonded to a sub ...


68
Richard C Frost, Eduardo W Gomez, Robert W McAnally: Airfoil variable cambering device and method. General Dynamics Corporation, Charles E Schurman, January 27, 1981: US04247066 (49 worldwide citation)

Airfoil device and method providing smooth, continuous, variation in airfoil camber and surface curvature over substantially the entire length of the device by use of a trusslike bendable beam as an airfoil rib having the airfoil skin surfaces flexibly slidable relative thereto. The beam is divided ...


69
Lawrence E Larsen, John H Jacobi: Method and apparatus for physiologic facsimile imaging of biologic targets based on complex permittivity measurements using remote microwave interrogation. The United States of America represented by the Secretary of the Army, William G Gapcynski, Sherman D Winters, Werten F W Bellamy, January 27, 1981: US04247815 (48 worldwide citation)

A physiologic facsimile image of a biological target is obtained by: scang the target by transmitting a microwave signal through the target and measuring at least one of the amplitude and phase components of the complex microwave power transmission coefficient at each one of a plurality of sample lo ...


70
William C Bird: Stackable containers. Commonwealth Moulding, Stevens Davis Miller & Mosher, January 27, 1981: US04247004 (47 worldwide citation)

To provide security of attachment, between one container and another similar container adapted to be stacked on the top of the first container, each container has a keeper slot in one or more of its side walls adjacent the container floor and a spring leaf at the top of the container which may be bo ...