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. 30, 1999
Filed:
Jul. 21, 1998
Michael C Campbell, Norfolk, VA (US);
Other;
Abstract
An evacuating kit (10) having a puncturing device (14) for evacuating aerosol cans into a drum (12), on which the puncturing device is mounted at a first bung hole (36), also includes a filter canister (16) for being coupled to a second bung hole (77) of the drum by a flexible transfer hose (20) so that the filter canister can be supported by a floor supporting the drum. The puncturing device further includes a valve at a second end (32) of a tubular wall (23) of a housing (22) of the puncturing device with a valve poppet (50) positioned beyond the second end for opening and closing a second-end opening (28) using the second end of the housing as a valve seat. The valve has a valve stem (48) mounted for linear movement in a web (44) of the housing extending across the second opening. The stem includes circumferentially spaced stem fingers (56) for contacting a pressurized container being punctured to open and close the valve poppet. A can holding mechanism includes a plate (60) slideably mounted on the housing and a screw clamp mounted on the plate with a convex rounded surface (76) for contacting concave bottoms of aerosol cans.