Patents Assigned to Guy F. Atkinson Company
  • Patent number: 4902050
    Abstract: A method and apparatus is disclosed for the tying of knots in elongated flexible members such as string or rope. The method includes the steps of first providing an elongated member of a desired length and then clamping the elongated member at a location spaced a predetermined distance from the free end thereof while rotating the clamped location to form a loop, with the free end crossing over the loop. The free end of the elongated member is then removed through the loop and the end is then clamped. The initial clamping pressure is released and the elongated member is then pulled to complete the tying of a knot.
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: February 20, 1990
    Assignee: Lake Center Industries a division of Guy F. Atkinson Company
    Inventors: Eugene E. Sobeck, Edward L. Steele
  • Patent number: 4884792
    Abstract: This invention is in the nature of a clamp to be used to clamp, for example, parts on a work piece for machining and the like. The clamp has a clamp bar and a handle bar and a roller and cam arrangement so that the clamp bar can be releasably held in an up-lock position by the cam but may be released and then the cam applied to clamp the clamp bar to the work piece.
    Type: Grant
    Filed: August 11, 1988
    Date of Patent: December 5, 1989
    Assignee: Lake Center Industries a division of Guy F. Atkinson Company
    Inventors: Roy Rendahl, Edward L. Steele
  • Patent number: 4465400
    Abstract: Sections of pipe for an underwater pipeline are laid by first positioning a support frame on the underwater terrain generally about the position for a section of pipe and then lowering a longitudinal pipe support and a section of pipe into engagement with the support frame. The position of the longitudinal pipe support on the support frame can be adjusted for proper positioning of the section of pipe with previously laid pipe. After a section of pipe is laid and supported by backfill, the underwater support frame is moved to the position for the next section of pipe. The support frame includes first and second transverse members each having a saddle for receiving a seat portion of the longitudinal pipe support. The saddles are moveable along the transverse members for adjusting the position of a section of pipe, and one of the transverse members is moveable. The longitudinal pipe support is moveable on a roller in the saddle on the fixed transverse member.
    Type: Grant
    Filed: December 30, 1981
    Date of Patent: August 14, 1984
    Assignee: Guy F. Atkinson Company
    Inventor: Robert A. Adams
  • Patent number: 4396313
    Abstract: A method for providing a flooring in a tunnel using a moving floor is disclosed herein. This method includes providing the moving floor with a flat, horizontally extending support surface extending rearwardly therefrom at floor level and movable therewith, advancing the moving floor and support surface, and placing precast concrete floor slabs to extend across the tunnel on the excavated tunnel invert exposed by the moving floor whereby to provide flooring along the length of the tunnel, each of the slabs being initially placed, one at a time, onto the support surface and adjacent the previous slab while remaining on the surface, and thereafter from the surface onto the tunnel invert as the moving floor and support surface are advanced.
    Type: Grant
    Filed: July 18, 1980
    Date of Patent: August 2, 1983
    Assignee: Guy F. Atkinson Company
    Inventor: Dennis C. McCarry
  • Patent number: 4355953
    Abstract: Adjustable guide vanes (70) are circumferentially disposed about a rotor (40) at each stage of a multi-stage turbine (10) and are slidably connected to pairs of rotatable vane rings (61, 62) at each stage, the rings and guide vanes defining nozzles (82) leading from a scroll case (30) to the rotor at each stage, the nozzles having contoured surfaces (80) for minimizing hydraulic losses. Yoke mechanisms (104, 106) and interconnecting members (98, 100) link each pair of rotatable vane rings to a single actuator shaft (90) for synchronous adjustment of the positions of the guide vanes to vary the cross-sectional areas of the nozzles thereby permitting operation at optimum efficiency in response to changing flow rates.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: October 26, 1982
    Assignee: Guy F. Atkinson Company
    Inventor: Richard M. Nelson
  • Patent number: 4277223
    Abstract: A double-case, multi-stage, centrifugal pump having a plurality of impellers mounted on a common shaft at axially spaced pump stages. The first pump stage is housed within a unitary forward case section of a three-section inner case assembly. Subsequent stages are housed within two rearward case sections disposed in axial joint-forming relationship with each other and radial joint-forming relationship with the forward case section. The inner case assembly is supported within an outer case assembly which provides a suction chamber surrounding the forward case section and a discharge chamber surrounding the rearward case sections, the inner and outer case assemblies being constructed in such manner that the pressure in the discharge chamber sealably forces the inner case sections together during operation of the pump.
    Type: Grant
    Filed: November 29, 1979
    Date of Patent: July 7, 1981
    Assignee: Guy F. Atkinson Company
    Inventor: Richard M. Nelson
  • Patent number: 4272084
    Abstract: A multiple stage mechanical end face seal assembly which has been developed to improve seal reliability and performance during both steady-state and transient operation. The seal assembly features a rotating seal ring mounting system which utilizes a rigid support ring loaded thru narrow annular projections in combination with centering non-sealing O-rings which effectively isolate the rotating seal ring from temperature and pressure transients while securely positioning the ring to adjacent parts, and a stationary seal ring mounting configuration which allows the stationary seal ring freedom of motion to follow shaft axial movement up to 3/4 of an inch and shaft tilt about the pump axis without any change in the hydraulic or pressure loading on the stationary seal ring or its carrier. An internal filter arrangement prevents plugging of the pressure staging coils in a multi-stage seal assembly.
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: June 9, 1981
    Assignee: Guy F. Atkinson Company
    Inventors: Arthur R. Martinson, Victor D. Rogers
  • Patent number: 3977213
    Abstract: Concentric driving and driven clutch rings have teeth in a common radial plane on one end of the rings. The clutch rings are normally coupled together by a coupler ring having teeth engaging the teeth of both clutch rings, this engagement being maintained by an axial clamp bolt. In the event of dangerous overspeed the clamp bolt is broken and the coupler ring is disengaged from the clutch rings by an explosive charge acting on an axial piston. The explosive charge is detonated by a firing pin actuated by a steel ball impelled by centrifugal force. The ball is retained by a magnet until centrifugal force exceeds the magnetic force holding the ball.
    Type: Grant
    Filed: March 7, 1975
    Date of Patent: August 31, 1976
    Assignee: Guy F. Atkinson Company
    Inventors: Donald B. Spencer, John E. Ferguson