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:
Aug. 29, 1995
Filed:
Dec. 06, 1993
Applicant:
Inventor:
Theodore H Hueller, Cary, IL (US);
Assignee:
Safety-Kleen Corp., Elgin, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
7386463 ; 7386444 ; 7386445 ; 7386466 ; 7386474 ;
Abstract
A liquid sampling apparatus comprising a sample retention tube, a tube plug, and an operating rod and handle unit. The retention tube is an open-ended cylinder made from a thin material. The plug includes a lower body portion with a skirt type seal, a rod-receiving center section, and tapered guide surfaces extending from the center toward the top of the body. The plug is secured to one end of an operating rod, and the other end of the rod has a handle in the form of a loop and a transverse section. The rod handle configuration enables the plug to be positively located in one of two desired positions.