Patents Represented by Attorney H. Calvin White

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  • Noise suppressor for vacuum sweeper and the like
    Patent number: 4015683
    Abstract: A noise suppressor package attachable to air exhaust tubing comprises:A. annular body means defining an axially extending bore to pass said exhaust, said body means including compressible foam segments which project radially inwardly at said bore, said segments being axially elongated and circularly spaced, andB. a tubular cover extending about said body means and having a flexible neck at one end of said body means, said neck being radially constrictable about said exhaust tubing to retain the package to the tubing.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: April 5, 1977
    Assignee: Purex Corporation Ltd.
    Inventor: William H. Williams
  • Bottle
    Patent number: D244348
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: May 17, 1977
    Assignee: Purex Corporation Ltd.
    Inventor: Alfred D. Sterges
  • Vacuum cleaner head assembly housing
    Patent number: D244523
    Type: Grant
    Filed: June 27, 1975
    Date of Patent: May 31, 1977
    Assignee: Purex Corporation Ltd.
    Inventor: Adolfo Ednalino Ebalo