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. 11, 1981
Filed:
Jan. 29, 1980
Applicant:
Inventor:
Robert Brownlee, Santa Clara, CA (US);
Assignee:
Brownlee Labs, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01A / ;
U.S. Cl.
CPC ...
2101982 ; 55386 ;
Abstract
Plastic seal plugs insert into each end of an elution column tube and are provided with flat gasket portions extending laterally to cover each tube end, a spring loaded hand-tightenable nut drives an end fitting from each end of a column holder extending alomst the length of the column to put the gasket portions and the tube in compression and create a seal between the end fitting, tube, at interposed gasket, the latter being entirely contained against cold flow or deformation by a close fitting recess in the end fitting which entirely captures the plastic gasket and tube end.