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:
Aug. 27, 2002
Filed:
Dec. 01, 1993
John G. Campbell, Waterford, MI (US);
Other;
Abstract
A fastener which includes an inner collar having an axial bore and a retractable projection projecting into the axial bore when the fastener is in a locked position and retractable out of the axial bore when the fastener is in a retracted position. The inner collar further has a tapered indentation in the outside surface. The fastener further includes an outer collar having an axial bore, the outer collar placed uniaxially and slidably over the inner collar and having a movable protuberance extending into the axial bore of the outer collar. The movable protuberance is shorter axially than the tapered indentation in the inner collar and is positioned in the tapered indentation. The fastener is in a locked position when the outer collar is in its resting position relative to the inner collar in which the movable protuberance is resting in the deepest portion of the tapered indentation. The fastener is in a retracted position when the outer collar is moved axially out of the resting position. The fastener further includes means for urging the movable protuberance into the axial bore of the outer collar. Also disclosed is a fastener-rod assembly which includes the above-described fastener and a rod onto which the fastener fastens.