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:
Sep. 27, 1977
Filed:
Sep. 04, 1975
Applicant:
Inventor:
John Edward Chapman, London, EN;
Assignee:
Babcock & Wilcox Limited, London, EN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61B / ;
U.S. Cl.
CPC ...
1041 / ; 1510405 ; 3317 / ; 73 4 / ; 118306 ; 1341 / ; 2541345 ; 308 / ;
Abstract
An apparatus for insertion into a relatively long tube or conduit in order to inspect or perform operations on the interior thereof. The apparatus includes a device for performing an operation on the tube as well as a plurality of traction units secured at spaced locations along a connecting lead. The traction units include a gear train and one or more driving means.