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, 1993
Filed:
Nov. 24, 1992
Michael D Farrell, Brookfield, WI (US);
Eugene R Rommelfaenger, Neosho, WI (US);
Sentry Equipment Corp., Oconomowoc, WI (US);
Abstract
The improved sampling valve assembly includes a diverting valve and an optional isolation valve in series for providing redundant shutoff. The assembly includes rounded-end, side-ported needles (as part of an easily-replaced needle assembly) to pierce the receptacle septum without 'coring' and help prevent liquid 'carryover.' The assembly also has features providing metered, low pressure flow into the receptacle and very low dead volume. A receptacle guide has an interior cavity shaped like the receptacle to guide the inserted receptacle for aligned engagement of the septum with the needle assembly. The needle assembly is removable by removing only the keeper nut.