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:
Jul. 18, 1978
Filed:
Jan. 26, 1977
Jerome A Gross, St. Louis, MO (US);
Other;
Abstract
In a tool for crimping a valve mounting cup into the mouth of a dispensing can, an annular piston which moves between inner and outer cylinders presses on the upper edge of a rubber sleeve whose inner and lower surfaces are restrained by the inner cylinder and an outward extending flange at its base. Since a downward force on the piston is resisted by the base flange, the axial length of the rubber-like sleeve is shortened, causing it to bulge radially outward beneath the lower edge of the outer cylinder. This outer cylinder is positioned on the mounting cup rim. The rubber sleeve, bulging outward beneath the rim, draws the inner wall of the mounting cup radially outward to seal it onto the can.