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:
Mar. 05, 1985

Filed:

Jul. 02, 1984
Applicant:
Inventor:

James A Kammeraad, Holland, MI (US);

Assignee:

K-Line Industries, Inc., Holland, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F16J / ;
U.S. Cl.
CPC ...
277 12 ; 277-5 ; 277166 ; 2771 / ; 277183 ; 1231 / ;
Abstract

A valve seal retaining boot has a tubular base with at least two contiguous segments of progressively narrowing diameters. The largest diameter segment is closest to the valve seal, the smallest diameter segment is the furthest from the valve seal. The largest diameter segment can accommodate with an acceptable retention stretch limit a cylinder head exposed shoulder having the largest positive deviation from a nominal diameter. The smallest segment is designed to accommodate with an acceptable retention stretch limit an exposed shoulder with the largest negative deviation from a nominal diameter. Segments of intermediate diameters can be provided to accommodate exposed shoulders with diameters intermediate the maximum positive and negative deviations from the nominal diameter.


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