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. 26, 1976
Filed:
Feb. 04, 1975
Gerald M Boisrayon, Le Beausset, FR;
Gilbert M Martin, La Seyne sur Mer, FR;
Jean C Mollard, Carry le Rouet, FR;
Abstract
An air lock in accordance with the invention is composed of two portions -- stationary hemispherical bell 6 fastened on a submarine rescue device 5 and a swivel skirt 7 in the form of a portion of a swivel joint, nested in the bell with a slight amount of play, bearing a peripheral sealing joint 28 which is applied against the hull 2 of a submarine around an opening 3. Two sealing joints 19 and 15 are placed between the bell and the skirt and the intermediate space 20 is filled with oil maintained at a constant pressure which is slightly different from the hydrostatic pressure.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile