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:
Sep. 03, 1991
Filed:
Dec. 15, 1988
Applicant:
Inventors:
John G Linner, Woodlands, TX (US);
Stephen A Livesey, Woodlands, TX (US);
Carmen Piunno, Woodlands, TX (US);
Mark Zaltsberg, Woodlands, TX (US);
Frank Gibson, Spring, TX (US);
Assignee:
Board of Regents, The University of Texas, Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
62 555 ; 62275 ; 118 501 ;
Abstract
A method and apparatus for ultrarapid cooling of tissue samples against a chilled cryogenic surface. The cryogenic surface is enclosed in a high vacuum chamber during cooling of the cryogenic surface. Dry non-condensable room temperature gas is introduced from an external source to raise the chamber pressure just prior to slamming or plunging a sample against the cryogenic surface. The cryogenic surface is heated for regeneration or cleaning purposes between each successive sample.