Patents by Inventor Bruce Petty

Bruce Petty 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).

  • Release device for retaining pin
    Patent number: 5771742
    Abstract: A release mechanism employing an actuating element of a shape memory alloy material. When the actuating element is heated through its phase-change transition temperature it applies a force which moves a latch to a position which activates the higher energy stored in a drive spring for moving a retaining element out of engagement with a structure. A detent when in a captured position releasably holds the retaining element in its locked position, and the detent is moved from a captured position to a retracted position to release the retaining element when the latch is moved by the actuating element.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: June 30, 1998
    Assignee: TiNi Alloy Company
    Inventors: Michael D. Bokaie, John D. Busch, A. David Johnson, Bruce Petty
  • Process for purification of crude p-hydroxymethylbenzoic acid
    Patent number: 4812594
    Abstract: Aqueous solutions of crude p-hydroxymethylbenzoic acid are purified to relatively low levels of 4-carboxybenzaldehyde by hydrogenation in the presence of a nickel on kieselguhr catalyst. 4-carboxybenzaldehyde is hydrogenated to p-hydroxymethylbenzoic acid. Toluic acid production is minimal.
    Type: Grant
    Filed: September 8, 1987
    Date of Patent: March 14, 1989
    Assignee: Amoco Corporation
    Inventor: Bruce Petty-Weeks
  • Process for purification of p-hydroxymethylbenzoic acid
    Patent number: 4447645
    Abstract: Disclosed is a process for purification of p-hydroxymethylbenzoic acid containing 4-carboxybenzaldehyde, p-toluic acid and terephthalic acid impurities.
    Type: Grant
    Filed: November 30, 1982
    Date of Patent: May 8, 1984
    Assignee: Standard Oil Company (Indiana)
    Inventors: John A. Donohue, James O. Knobloch, Bruce Petty-Weeks, Steven A. Cerefice
  • Polyamides and copolyamides comprising -1,2-di(p-aminophenoxy) ethane moieties
    Patent number: 4393162
    Abstract: Novel polyamides and copolyamides are prepared from 1,2-di(p-aminophenoxy) ethane and diacids or mixtures of 1,2-di(p-aminophenoxy) ethane and other diamines and diacids. These polyamides and copolyamides are useful as molded objects, fiber, films, laminate and coating.
    Type: Grant
    Filed: May 14, 1982
    Date of Patent: July 12, 1983
    Assignee: Standard Oil Company (Indiana)
    Inventors: Edward E. Paschke, C. Bruce Petty-Weeks