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. 24, 1983
Filed:
Apr. 29, 1981
Jon M Smallegan, Farmington Hills, MI (US);
Harold T Woods, Livonia, MI (US);
Dale H Goodsmith, Livonia, MI (US);
Multifastener Corporation, , MI (US);
Abstract
The fastener installation head and bolster assembly of this invention is particularly adapted to assure constant installation pressure for fasteners installed in a reciprocating press die, such as pierce and clinch nuts. The fastener installation head includes a plunger supported on one die platen, a movable housing member which receives the fasteners to be installed, reciprocably supported on the plunger, and a die member supported on the opposed die platen, opposite the movable housing plunger passage. The bolster assembly includes a fluid pressure ram operably supporting the plunger between the plunger and the die platen having a source of constant fluid pressure and a plunger release which permits the plunger to recede when the press tonage exceeds the preferred fastener installation force.