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:
Apr. 14, 1992
Filed:
Feb. 12, 1991
William J Olson, Barrington, IL (US);
James S Zielinski, Roselle, IL (US);
Michael C Blaha, Chicago, IL (US);
Illinois Tool Works Inc., Glenview, IL (US);
Abstract
A refrigration, foam sealing bushing is provided for use within a refrigeration door cavity. The bushing is formed of a male member, and a female member. The male member includes a head portion, an upper shank portion, a reduced lower shank portion, and a disc-like member. The female member is formed of a tubular section having an open upper end and an open lower end. The tubular section has an axially extending bore which extends between the open upper end and the open lower end for telescopingly receiving the lower shank portion of the male member. Passageways are formed between the outer surface of the reduced lower shank portion and inner surface of the axially extending bore of the tubular section for permitting air to escape from the door cavity but yet preventing foam insulation from escaping during the injection of the foam insulation into the door cavity.