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:
Feb. 24, 1987
Filed:
Oct. 28, 1985
Bernd Korth, Weil am Rhein, DE;
Protoned B.V., Amsterdam, NL;
Abstract
The extension column (3) which is telescopically adjustable inside a vertical tube (2) and is optionally rotatable relative to the vertical tube (2) is supported on the latter by a radial and axial pivot bearing arrangement (11, 14) and a height-fixing device comprising a housing (16) and a coupling element (15) preferably in the form of a slide (15) which is supported on a bearing ring (14) which in turn sits on the bearing surface (13) of a support flange (11) supported by the vertical tube (2). The height-fixing slide (15) is mounted in a slide housing (16), which surrounds the bearing ring (14) and the support flange (11), and is against the restoring force of a return spring (27) transferable from a coupled position on the extension column (3) into a release position in which the extension column (3) is freely movable vertically.