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. 22, 1993
Filed:
Dec. 30, 1991
Raymond R Bert, Cranston, RI (US);
Textron, Inc., Providence, RI (US);
Abstract
An expansion band is provided with a row of metallic bottom links underlying a row of metallic top links. The top links are offset with respect to the bottom links in the direction of the band length, with metallic top shells mounted on the top links. Metallic spring biased connecting elements mechanically couple the top and bottom links in a manner permitting resilient longitudinal adjustment of the band between a contracted state at which the top shells are in mutual abutting relationship to thereby cover the underlying upper surfaces of the bottom links, and an extended state at which the top shells are spaced on from the other to thereby expose the upper surfaces of the bottom links. Only the top shells having a base coating of black oxide, and only the to shells having a base coating of black oxide, and only the exposed exterior surfaces of the thus coated top shells and the upper surfaces of the bottom links have a polymeric coating. Preferably, the black oxide coating is produced by immersing the top shells in a heated molten bath containing an oxidizing agent. The polymeric coating is preferably a polyurethane paint which may have a dye image subsequently applied thereto.