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:
May. 22, 1990
Filed:
Feb. 02, 1987
Erwin F Mikol, Park Ridge, IL (US);
Twenthieth Century Companies, Inc., Wheeling, IL (US);
Abstract
An adjustable tubular wall structure, which may be cylindrical or tapered, comprises a tubular body of asymmetrical accordion-folded pleats. Each pleat is defined by a thrust cone wall segment and a Belleville washer-like wall segment. The Belleville washer-like wall segments of each pleat are proportioned to be snap shifted through the articulation of the thrust cone of the next adjacent pleat, and thus shorten or lengthen the tubular body. Similar partial snap shifting of the individual Belleville washer-like wall segments provides for angulating the tubular body. The tubular structure is stable in its adjusted position, both at its ends and lengthwise of same. Tapered tubular structures may be integrally molded into a container to serve as a collapsible pouring spout.