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.

Date of Patent:
May. 04, 2010

Filed:

Apr. 15, 2008
Applicants:

John R. Williams, Georgetown, TX (US);

Theresa J. Williams, Legal Representative, Georgetown, TX (US);

Inventors:

John R. Williams, Georgetown, TX (US);

Theresa J. Williams, legal representative, Georgetown, TX (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 19/00 (2006.01); E21B 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An upper stripper rubber canister apparatus has a canister body and a canister body lid. An upper end portion of the canister body includes a breech lock structure exposed within the canister body central passage. A lower end portion of the canister body lid is configured for fitting within the central passage of the canister body. The canister body lid includes a breech lock structure that is configured for allowing the canister body lid to be fixedly engaged with the canister body by inserting a lower end portion of the canister body lid into a canister body central passage and rotating the canister body lid with respect to the canister body such that at least a portion of the canister body breech lock structure become at least partially overlapped with a respective one of the canister body lid breech lock structure.


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