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:
Apr. 26, 1977
Filed:
Feb. 25, 1976
Dick T van Manen, Canandaigua, NY (US);
Voplex Corporation, Pittsford, NY (US);
Abstract
A dispenser of the type using a threaded rod with a turning knob is applied to a disposable cartridge and plunger. The cartridge plunger has a threaded central sleeve that is sealed closed, and the threaded rod, knob, and an anchorage adapter are separate from the cartridge until dispensing is to begin. Then the rod is threaded through the sleeve to puncture the seal and advance through the material to bring the anchorage adapter adjacent the rear end of the cartridge. The anchorage adapter is then releasably secured to the rear end of the cartridge, and the rod turned in the opposite direction to advance the plunger for dispensing material. The plunger can be backed up to stop drool if dispensing is interrupted, and the rod, knob, and adapter can be removed and reused after dispensing is completed.