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:
Jun. 12, 2012
Filed:
Dec. 29, 2008
Applicants:
David B. Walker, San Diego, CA (US);
Christopher J. Meyer, San Diego, CA (US);
Tsuhon Lin, San Diego, CA (US);
Inventors:
David B. Walker, San Diego, CA (US);
Christopher J. Meyer, San Diego, CA (US);
Tsuhon Lin, San Diego, CA (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
F01B 25/26 (2006.01); F04D 29/44 (2006.01); F04D 29/54 (2006.01); F03B 1/00 (2006.01); F01D 25/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A plug for an inspection hole of a gas turbine engine is disclosed. The plug may have a stem including a first shaft, wherein a first seal is located circumferentially about the first shaft. The plug may have a swivel seal including a second seal spaced from a ball by a second shaft, and the swivel seal may be rotatably connected to the stem by the ball. The ball and the second seal may be fixed to the second shaft.