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:
Sep. 11, 1984
Filed:
Apr. 05, 1982
Applicant:
Inventor:
Franco Bavelloni, Appiano Gentile, IT;
Assignee:
Z. Bavelloni S.p.A., Bregnano Co, IT;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
269 21 ; 269 22 ;
Abstract
The holding device comprises a suction cup membrane of an elastically deformable material which can be contact engaged with a glass, marble or the like plate member to define, in cooperation with the plate, a chamber sealed against leakage from the outside, a piston assembly being provided for increasing the volume of the chamber in such a way as to increase the vacuum therein and the adhesion between the plate and the suction cup membrane.