Patents by Inventor Richard M. Boyd

Richard M. Boyd has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6588727
    Abstract: A dispensing valve includes a platform, a product inlet supported on the platform, and a product outlet supported on the platform. A flow rate controller receives product from the product inlet and communicates product to the product outlet. A paddle arm disposed at an outlet from the flow rate controller moves from a closed position stopping product flow to an open position allowing product flow. The paddle arm includes a base and a seal mounted on the base. The base includes a lever portion, a seal-retaining portion, and a seal retaining support ridge disposed on the lever portion. The seal includes an outer sealing member supported on the base at the seal retaining support ridge and an inner sealing block supported on the seal-retaining portion. An actuator moves the paddle arm to its open position, while a biasing mechanism returns the paddle arm to its closed position.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: July 8, 2003
    Assignee: Lancer Partnership, Ltd.
    Inventors: Steven R. Christoffersen, Samuel Durham, Richard M. Boyd
  • Publication number: 20030057393
    Abstract: A dispensing valve includes a platform, a product inlet supported on the platform, and a product outlet supported on the platform. A flow rate controller receives product from the product inlet and communicates product to the product outlet. A paddle arm disposed at an outlet from the flow rate controller moves from a closed position stopping product flow to an open position allowing product flow. The paddle arm includes a base and a seal mounted on the base. The base includes a lever portion, a seal-retaining portion, and a seal retaining support ridge disposed on the lever portion. The seal includes an outer sealing member supported on the base at the seal retaining support ridge and an inner sealing block supported on the seal-retaining portion. An actuator moves the paddle arm to its open position, while a biasing mechanism returns the paddle arm to its closed position.
    Type: Application
    Filed: September 27, 2001
    Publication date: March 27, 2003
    Inventors: Steven R. Christoffersen, Samuel Durham, Richard M. Boyd
  • Patent number: 6364145
    Abstract: A vehicle fuel or gas tank is subject to either a build up of pressure or a negative pressure, and in view of this inlet and outlet vents are provided in the fuel cap to balance the pressure with the atmosphere, and this balance of fuel tank pressure is attained by covers of vents in the fuel cap and the covers having an umbrella or parabolic shape or the vents may be covered by reed valves. The disclosure of covers of vents as described in this invention then obviates the use of coiled metal springs to control vents in vehicle fuel caps.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: April 2, 2002
    Inventors: Richard J. Shaw, Richard M. Boyd
  • Patent number: 5895053
    Abstract: A seal that is particularly suitable for use in a gas spring and other high pressure hydraulic and pneumatic sealing applications and that minimizes the leakage of relatively high pressure gas and lubricating oil from the rod end of the gas spring or other applications. The generally annular seal body includes a number of convex sealing lobes on its radially inwardly and outwardly facing surfaces. All of the sealing lobes have a predetermined radius and project radially beyond the plane of their respective surfaces. The axial facing surfaces of the seal body are generally flat or non-concave. The seal also includes a wiper insert secured in a recess in one corner of the radially inwardly facing surface of the seal body. When the seal body is compressed between the relatively movable, annularly spaced piston rod and cylinder, the compression induced stress in the seal causes the seal body and insert to form an effective gas and oil seal.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: April 20, 1999
    Assignee: AVM, Inc.
    Inventors: Walter Douglas Bauman, James B. Chamberlin, Jack R. Roach, Mark S. Jeffries, Richard M. Boyd
  • Patent number: 5498084
    Abstract: Means and method for restricting the flow of oil which passes between the front bearing and the main shaft of an automatic transmission for motorized vehicles. A gland is formed at the downstream end of the front bearing in either the inner surface of that bearing or of the housing into which the bearing is press-fitted. A split ring made of thermoplastic material having a pressure velocity value in excess of 20,000 at 100 feet/minute surface speed is inserted in the gland and keyed in place against rotation. The ring has a diameter which is slightly less than the diameter of the main shaft which it surrounds, and has circumferential gaps between its overlapping end portions which extend circumferentially 0.006"-0.300" and has axial dimensions of 0.006"-0.150". The circumference of the ring is spaced radially from the opposed wall of the gland at least 0.0005".
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: March 12, 1996
    Assignee: Quadion Corporation
    Inventor: Richard M. Boyd
  • Patent number: 5040905
    Abstract: An elastomeric combined seal and spring formed of uniformly resilient flowable rubber-like material and comprised of a one-piece annular body of uniform cross-sectional configuration throughout, which is of generally right angled polygonal shape and having a pair of opposed concave working surfaces spaced a distance only 60%-70% of its maximum radial dimension, measured at its corners, and its convex corners having a convexity of only 14%-16% of said maximum radial dimensions, the concavity of said surfaces being 17%-30% of said maximum radial dimensions, thereby providing an elastic seal which will function as a forgiving spring in support of a self-adjusting, self-lubricating split-ring annular bearing and thereby perfect a lasting seal against an annular surface while the latter is moving relative thereto at high speeds for prolonged periods.
    Type: Grant
    Filed: July 6, 1990
    Date of Patent: August 20, 1991
    Assignee: Quadion Corporation
    Inventor: Richard M. Boyd
  • Patent number: 4878766
    Abstract: A high-speed self-lubricating bearing-seal assembly comprised of an annular bearing-seal composed of readily moldable, self-lubricating, plastic material having a pressure velocity value at least equal to 1800 at 100 feet per minute surface speed, and an elastic combined spring and seal member biasing the bearing-seal. The elastic member is located behind the bearing-seal and is formed of a readily flowable rubber-like material, consisting of a combined spring and seal which gently urges the bearing-seal against a sealing surface. The elastic member is generally right-angled polygonal in cross-sectional shape and has concaved sides and convex corners, its minimum radial dimensions between the corners being 60-70% of its maximum radial dimensions. A salient feature of the assembly is that it is a dry bearing-seal, in that no lubrication is required other than that inherent in the bearing-seal member, yet it outlasts other lubricated bearings by a wide margin.
    Type: Grant
    Filed: August 25, 1988
    Date of Patent: November 7, 1989
    Assignee: Quadion Corporation
    Inventor: Richard M. Boyd
  • Patent number: 4764035
    Abstract: A bearing assembly comprised of a split-ring annular bearing member having overlapping free ends and being molded of self-lubricating plastic material having a pressure velocity value at least equal to 1800 at 100 feet per minute surface speed and an annular continuous elastomeric combined sealing member and spring mounted in supporting relation to the split-ring bearing member and formed of a flowable rubber-like material, the combined sealing and spring member being mounted within a groove behind the bearing member so as to continually apply light pressure thereto to urge the same against the bearing surface so as to maintain a seal thereat; the combined sealing and spring member being of right-angled polyganol cross-sectional configuration and have concaved sides and convex corner lobes and being more narrow than the groove and sufficiently forgiving to avoid undue pressure and consequent wear upon the bearing member over the full range of temperature variations, created by high speed relative movement bet
    Type: Grant
    Filed: November 6, 1987
    Date of Patent: August 16, 1988
    Assignee: Quadion Corporation
    Inventor: Richard M. Boyd
  • Patent number: 4750847
    Abstract: A bearing assembly designed to preclude the escape of lubrication through bushings within which elongated shafts are rotated at high speeds. The bearing assembly is comprised of a bearing member of split-ring form which is made of a readily moldable self-lubricating material having a pressure velocity value at least equal to 1800 at 100 feet per minute surface speed, and is L-shaped in cross-sectional configuration. It includes an elastomeric sealing ring mounted in supporting relation to the sealing portion of the L-shaped bearing member which is compressed therewith within a groove provided for that purpose at the outer end of the bushing. The sealing ring maintains the bearing member in close-fitting, sealing relation to the sealing surface surrounding the shaft and is insulated by the bearing member from the sealing surface having rapid relative movement and from associated parts to thereby obviate the normally attendant destructive effects of high speed rotation upon such a ring.
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: June 14, 1988
    Assignee: Quadion Corporation
    Inventor: Richard M. Boyd
  • Patent number: 4693343
    Abstract: A dynamic sealing ring made of a resilient flowable material such as an elastomer throughout, characterized by its cross-sectional configuration which in its free form is uniform and generally rectangular with arcuate smoothly contoured convex lobes at each of its corners, with its two opposed axially extending surfaces bearing additional annular convex sealing lobes in unequal numbers disposed in non-opposite relation between the adjacent corner lobes and separated therefrom and from each other by concavities and extending outwardly therebeyond a short distance to effect a more perfect seal, particularly when applied in encircling relation to a reciprocating piston rod and subjected to high gaseous pressures from a single direction or as a piston seal.
    Type: Grant
    Filed: June 12, 1985
    Date of Patent: September 15, 1987
    Assignee: Quadion Corporation
    Inventor: Richard M. Boyd
  • Patent number: 4592390
    Abstract: A flow washer in the form of a disc constructed of flowable-under-pressure, flexible, resilient material and having a plurality of closely spaced thin fins extending radially inwardly from an outer wall and terminating short of the disc's center to cooperatively define an axial orifice inwardly thereof. A method of making the flow washer is also disclosed.
    Type: Grant
    Filed: April 23, 1984
    Date of Patent: June 3, 1986
    Assignee: Minnesota Rubber Company
    Inventor: Richard M. Boyd
  • Patent number: RE38991
    Abstract: A vehicle fuel or gas tank is subjected to either a build up of pressure or a negative pressure, and in view of this inlet and outlet vents are provided in the fuel cap to balance the pressure with the atmosphere, and this balance of fuel tank pressure is attained by covers of vents in the fuel cap and the covers having an umbrella or parabolic shape or the vents may be covered by reed valves. The disclosure of covers of vents as described in this invention then obviates the use of coiled metal springs to control vents in vehicle fuel caps.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: February 28, 2006
    Assignee: Gas Caps, Inc.
    Inventors: Richard J. Shaw, Richard M. Boyd