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:
Nov. 21, 1978
Filed:
Nov. 03, 1977
Applicant:
Inventors:
Martin J Harjar, Vermilion, OH (US);
Donald R Hastings, Elyria, OH (US);
Assignee:
Nordson Corporation, Amherst, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05B / ; F16J / ;
U.S. Cl.
CPC ...
277113 ; 277 12 ; 277 33 ; 277200 ; 239 15 ; 239526 ; 239583 ; 2513 / ;
Abstract
Disclosed is a static seal suitable for sealing a pull rod or the like to an opening through which the rod passes into a hydraulic conduit. This static seal can be used in a wide variety of apparatus including for example spray coating guns, both electrostatic and non-electrostatic, valve assemblies and the like. Novel static sealing arrangements at each end of a non-machined extruded bellows provide packingless bellows sealing between the rod and the opening. Such a sealing arrangement is compatible with the highly desirable materials of the fluorinated hydrocarbon group, commonly known by the trade name Teflon.