Patents by Inventor Stewart C. Watson

Stewart C. Watson 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).

  • Reinforced elastomer products
    Patent number: 4524174
    Abstract: The resistance of structural elastomer products, such as bearing blocks, to compressive forces is reduced by incorporating therein a plurality of small, separate, reinforcing elements of relatively hard material. Such materials include crushed rock, concrete, glass or certain slags and small metal pieces. The reinforcing elements are congregated in an interior section or core which is covered by a marginal section substantially free from reinforcing elements.
    Type: Grant
    Filed: May 29, 1984
    Date of Patent: June 18, 1985
    Assignee: Watson Bowman Associates
    Inventor: Stewart C. Watson
  • Reinforced elastomer products
    Patent number: 4473680
    Abstract: The resistance of structural elastomer products, such as bearing blocks, to compressive forces is reduced by incorporating therein a plurality of small, separate, reinforcing elements of relatively hard material. Such materials include crushed rock, concrete, glass or certain slags and small metal pieces. The reinforcing elements are congregated in an interior section or core which is covered by a marginal section substantially free from reinforcing elements.
    Type: Grant
    Filed: November 30, 1981
    Date of Patent: September 25, 1984
    Assignee: Watson Bowman Associates, Inc.
    Inventor: Stewart C. Watson
  • Reinforced elastomer products
    Patent number: 4448920
    Abstract: The resistance of structural elastomer products, such as bearing blocks, to compressive forces is reduced by incorporating therein a plurality of small, separate, reinforcing elements of relatively hard material. Such materials include crushed rock, concrete, glass or certain slags and small metal pieces. The reinforcing elements are congregated in an interior section or core which is covered by a marginal section substantially free from reinforcing elements.
    Type: Grant
    Filed: November 30, 1981
    Date of Patent: May 15, 1984
    Assignee: Watson-Bowman Associates, Inc.
    Inventor: Stewart C. Watson
  • Reinforced elastomer products
    Patent number: 4305172
    Abstract: The resistance of structural elastomer products, such as bearing blocks, to compressive forces is reduced by incorporating therein a plurality of small, separate, reinforcing elements of relatively hard material. Such materials include crushed rock, concrete, glass or certain slags and small metal pieces. The reinforcing elements are congregated in an interior section or core which is covered by a marginal section substantially free from reinforcing elements.
    Type: Grant
    Filed: February 8, 1979
    Date of Patent: December 15, 1981
    Assignee: Watson Bowman Associates, Inc.
    Inventor: Stewart C. Watson
  • Reinforced elastomer products
    Patent number: 4210698
    Abstract: The resistance of structural elastomer products, such as bearing blocks, to compressive forces is reduced by incorporating therein a plurality of small, separate, reinforcing elements of relatively hard material. Such materials include crushed rock, concrete, glass or certain slags and small metal pieces. The reinforcing elements are congregated in an interior section or core which is covered by a marginal section substantially free from reinforcing elements.
    Type: Grant
    Filed: March 21, 1978
    Date of Patent: July 1, 1980
    Assignee: Watson Bowman Associates, Inc.
    Inventor: Stewart C. Watson
  • High load bearing for bridges and similar structures
    Patent number: 4187573
    Abstract: A high load bearing for bridges and other structures comprising upper and lower plates and a load bearing elastomer pad between them. The pad has a concave periphery, and the bearing is provided with means preventing shearing between the upper and lower plates but permitting rotational movement between them. Means are provided which mechanically abut the elastomer pad to limit or prevent lateral movement of the upper and lower surfaces of the elastomer pad without preventing bulging of its periphery.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: February 12, 1980
    Assignee: Watson Bowman Associates, Inc.
    Inventors: Edward R. Fyfe, Stewart C. Watson
  • Expansion joint seal
    Patent number: 4022538
    Abstract: A seal and cover for expansion joints in roadways and bridges comprised of a block of elastomer having grooves extending downwardly from its top surface to allow for expansion and contraction. A metal plate is secured to the top of the elastomer block to protect the block and help carry the weight of vehicles over the joint. The plate may also have grooves in its top surface to reduce the likelihood of vehicles skidding as they cross the joint.
    Type: Grant
    Filed: April 25, 1973
    Date of Patent: May 10, 1977
    Assignee: Watson-Bowman Associates, Inc.
    Inventors: Stewart C. Watson, Thomas C. Bowman