Patents Assigned to Stanadyne, Inc.
  • Patent number: 4884596
    Abstract: A plumbing fixture includes a tubular waterway and an enclosing cover. There is a space between the cover and waterway. In the method of manufacturing such plumbing fixture, a foam material consisting of a base and a catalyst therefor is positioned within the space between the cover and the waterway, with the foam material growing in the space until the space is completely filled and the waterway is secured to the cover. The foam material not only is the securing agent for the waterway and cover, but provides temperature, noise and vibration isolation therebetween.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: December 5, 1989
    Assignee: Stanadyne, Inc.
    Inventors: Hugo Byers, Tracy H. Lang
  • Patent number: 4880479
    Abstract: A resulfurized and rephosphorized free-machining steel bar formed by cold drawing a hot rolled steel bar has the composition, by weight, C up to 0.08%; Mn 0.6% to 1.4%; Si up to 0.1%; P at least 0.03%; S 0.25% to 0/50%; Cb 0.02% to 0.10%; the sum of Ni, Cr, Mo and Cu up to 0.15%; balance iron. The ratio of %Mn/%S is from 1.6 to 4.0, and the ratio of [%Mn-(1.62.times.%S)]/%Cb is from 2 to 50. The yield strength of the steel bar is further determined by the draft in cold drawing the bar from the hot rolled state and the size and cross section of the bar after draft. The relationship between strength and ductility is further improved by heavy drafting in cold drawing the bar from the hot rolled state.
    Type: Grant
    Filed: June 9, 1988
    Date of Patent: November 14, 1989
    Assignee: Stanadyne, Inc.
    Inventors: Stephen P. Birman, Richard B. Smith, Richard L. Thompson
  • Patent number: 4813455
    Abstract: A mixing valve assembly includes a housing and a mixing valve positioned therein, with the mixing valve having a mixing member extending outwardly therefrom. A stop tube is positioned about the housing and there is a control element attached to the mixing member to vary the temperature of water discharged from the mixing valve. There are cooperating means on the stop tube and control element for limiting rotation of the control element and mixing member. An adjustable temperature stop sleeve extends within and is interlocked to the stop tube with the sleeve having a projection thereon which can be variably positioned for contact by the control element for limiting temperature adjustment movement thereof.
    Type: Grant
    Filed: October 26, 1984
    Date of Patent: March 21, 1989
    Assignee: Stanadyne, Inc.
    Inventor: Muhammad Iqbal
  • Patent number: 4811715
    Abstract: An electronic unit injector employs an expandable chamber which expands as pressure in the injector increases between a pair of threshold pressures. The expansion of the chamber results in a two-phase rate of injection of the injector whereby the initial injection rate is significantly lower than the second injection rate. In one embodiment, the expandable chamber is formed by a pin which is displaceable in a cap mounted to the injector body. The pin bottoms against the cap to define the phase transition.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: March 14, 1989
    Assignee: Stanadyne, Inc.
    Inventors: Ilija Djordjevic, William W. Kelly, Richard E. Vanderpoel
  • Patent number: 4793295
    Abstract: A hydraulic lash adjuster has a generally cylindrical, hollow body having a closed end, an open end and a top land at the open end. A plunger is positioned in the body and is held in place by a retainer. The retainer is fastened to the exterior of the body. The retainer has a rim supported on the top land of the body and is held in place by tabs which are folded under into grooves in the side of the body.
    Type: Grant
    Filed: November 8, 1984
    Date of Patent: December 27, 1988
    Assignee: Stanadyne, Inc.
    Inventor: Todd R. Downing
  • Patent number: 4793311
    Abstract: A fuel injection pump having an inlet metering valve with separate primary and boost ports for metering an intake charge of fuel to a charge pump, limit means for separately establishing a maximum charge limit of the charge pump and a lesser metered charge limit through the primary valve port, a multiple position hydraulic actuator for selectively setting an all-speed governor at each of a plurality of speed settings and a solenoid control for selectively positioning the hydraulic actuator and activating the boost port to switch the charge limit to said maximum limit at certain speed settings.
    Type: Grant
    Filed: November 4, 1987
    Date of Patent: December 27, 1988
    Assignee: Stanadyne, Inc.
    Inventors: Daniel E. Salzgeber, George Woliver, Alan F. Lasher
  • Patent number: 4791962
    Abstract: A fluid valve for use within a valve fixture such as a kitchen faucet, lavatory faucet or shower/tub control includes a body and a seal support positioned within the body and connected thereto. The seal support has an inlet and an outlet and the body has a discharge which is in alignment with the seal support outlet. There is an annular space defined between an interior wall of the body and an exterior wall of the seal support with there being a piston movable within this annular space and being in substantial contact with the interior wall of the body and the exterior wall of the seal support. The piston has an opening movable into alignment with the body discharge and the seal support outlet to provide a water passage from the seal support inlet to the discharge. There is a valve closing seal extending peripherally about the seal support outlet and in contact with the interior of the piston.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: December 20, 1988
    Assignee: Stanadyne, Inc.
    Inventor: Alfred M. Moen
  • Patent number: 4790055
    Abstract: A fuel injection nozzle 10 having a nozzle body 12 to which is attached a banjo-type inlet stud 16, by means of heat shrinking. After the shrink fit attachment, a blind passage 20, 22 in the delivery tube portion 134 of the inlet is drilled through to penetrate the nozzle body and form a lead-tight fuel delivery path. A locating plate 106 is supported by a bore 96 in the cylinder head 80 adjacent the nozzle and orients the nozzle into a preselected orientation. In one nozzle embodiment 70, the tip 76 is sealed against the cylinder head socket 84 by a frustoconical copper annular seal member 82 that is preferentially loaded toward the inner seal diameter. The nozzle cap 14 forms a spring chamber in which a spring subassembly 42 including upper and lower spring seats 48, 46, a spring 44, and stem 186 and pedestal 84 piloting the spring, cooperate to permit independent setting of the valve lift off stop limit F and the spring preload B.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: December 13, 1988
    Assignee: Stanadyne, Inc.
    Inventors: Robert Raufeisen, David A. Chace, Leon P. Janik
  • Patent number: 4782853
    Abstract: A hot and cold water mixing valve has a sleeve formed and adapted to fit within a valve fixture such as a kitchen faucet, lavatory faucet or shower/tub control. There is a stem which is positioned within the sleeve and rotatable and reciprocal relative thereto to control discharge through the mixing valve. The sleeve has hot and cold water inlet ports and an outlet. The stem includes a piston directing flow from the sleeve inlets to the sleeve outlet. The stem also includes a stem driver formed and adapted to have an operating handle mounted thereon with the stem driver being connected to the piston by a thin rod whose diameter is substantially less than the piston outer diameter. The stem is pressure unbalanced, with the amount of unbalance being determined by the cross sectional area of the thin rod. A non-movable seal member is positioned within the sleeve with the thin rod passing through the seal member.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: November 8, 1988
    Assignee: Stanadyne, Inc.
    Inventor: Alfred M. Moen
  • Patent number: D301058
    Type: Grant
    Filed: January 13, 1987
    Date of Patent: May 9, 1989
    Assignee: Stanadyne, Inc.
    Inventors: Roger H. Ramsey, Mitchell L. Wilgus
  • Patent number: D302579
    Type: Grant
    Filed: January 13, 1987
    Date of Patent: August 1, 1989
    Assignee: Stanadyne, Inc.
    Inventors: Roger H. Ramsey, Mitchell L. Wilgus
  • Patent number: D302581
    Type: Grant
    Filed: January 13, 1987
    Date of Patent: August 1, 1989
    Assignee: Stanadyne, Inc.
    Inventors: Roger H. Ramsey, Mitchell L. Wilgus
  • Patent number: D303468
    Type: Grant
    Filed: January 13, 1987
    Date of Patent: September 19, 1989
    Assignee: Stanadyne, Inc.
    Inventors: Roger H. Ramsey, Mitchell L. Wilgus
  • Patent number: D303469
    Type: Grant
    Filed: January 13, 1987
    Date of Patent: September 19, 1989
    Assignee: Stanadyne, Inc.
    Inventors: Roger H. Ramsey, Mitchell L. Wilgus
  • Patent number: D303471
    Type: Grant
    Filed: January 13, 1987
    Date of Patent: September 19, 1989
    Assignee: Stanadyne, Inc.
    Inventors: Roger H. Ramsey, Mitchell L. Wilgus
  • Patent number: D303828
    Type: Grant
    Filed: January 13, 1987
    Date of Patent: October 3, 1989
    Assignee: Stanadyne, Inc.
    Inventors: Roger H. Ramsey, Mitchell L. Wilgus
  • Patent number: D303830
    Type: Grant
    Filed: January 13, 1987
    Date of Patent: October 3, 1989
    Assignee: Stanadyne Inc.
    Inventors: Roger H. Ramsey, Mitchell L. Wilgus
  • Patent number: D303831
    Type: Grant
    Filed: January 13, 1987
    Date of Patent: October 3, 1989
    Assignee: Stanadyne, Inc.
    Inventors: Roger H. Ramsey, Mitchell L. Wilgus
  • Patent number: D309495
    Type: Grant
    Filed: January 13, 1987
    Date of Patent: July 24, 1990
    Assignee: Stanadyne, Inc.
    Inventors: Roger H. Ramsey, Mitchell L. Wilgus
  • Patent number: D309496
    Type: Grant
    Filed: January 13, 1987
    Date of Patent: July 24, 1990
    Assignee: Stanadyne, Inc.
    Inventors: Roger H. Ramsey, Mitchell L. Wilgus