The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 27, 1981
Filed:
Oct. 09, 1979
Larry G Keast, Houston, TX (US);
Herbert D Horton, Mayhill, NM (US);
World Wide Oil Tools, Inc., Houston, TX (US);
Abstract
An improved pawl and ratchet mechanism is disclosed wherein at least one of a plurality of pawl elements movably disposed within a housing is movable into a least one of the spaces between the teeth of a toothed track ratchet irrespective of the location of the housing with respect to the toothed track ratchet when the housing engages the toothed track ratchet. The improved pawl and ratchet mechanism may be used to contain explosive forces resulting from a pressure failure during the hydraulic testing of pipe.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile