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:
Nov. 24, 1987
Filed:
Apr. 04, 1986
Stig Lundback, Vaxholm, SE;
Astra-Tech Aktiebolag, , SE;
Abstract
A holder for industrial use attachable by vacuum comprises a rigid backpiece (3), a flexible intermediate element (2), and a central distance-maintaining element (1). The intermediate element (2) comprises a comparatively rigid sealing ring (9) with a sealing lip (13), which in use abuts against the element held fixed and with its opposite side against the backpiece (3). The central distance-maintaining element (1) is rigidly connected to the backpiece (3). The sealing ring (9) of the intermediate element (2) is movably and outwardly resiliently biassed in a direction away from the back piece. When the side of the sealing ring with the lip is unloaded and the ring is pressed outwardly, a vacuum valve (14) is automatically closed by the intermediate element, which valve opens when the holder is pressed against the object held fixed whereby the holder becomes attached by the sucking action.