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:
May. 09, 1978
Filed:
May. 06, 1975
Applicant:
Inventor:
Don B Landers, Arlington, TX (US);
Assignee:
Oil States Rubber Company, Arlington, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02D / ;
U.S. Cl.
CPC ...
61 53 ; 61 86 ; 61 98 ;
Abstract
A seal assembly for tubular structures such as piling guides and the like, with a plurality of stacked diaphragm members forming enclosed chambers therebetween at the tube ends. The chambers are filled with plastic or elastomer for differential pressure sharing between the diaphragms to avoid overloading and rupture thereof.