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. 09, 2014
Filed:
Nov. 20, 2013
Data Sciences International, Inc., New Brighton, MN (US);
Joseph Lomask, Wilmington, NC (US);
Yuval Shemesh, Wilmington, NC (US);
Hai Dang Nguyen, Wilmington, NC (US);
Chau Hong Le, Wilmington, NC (US);
Richard A. Shafer, Wilmington, NC (US);
Data Sciences International, Inc., St. Paul, MN (US);
Abstract
A plethysmograph is described that includes a test chamber having an opening; a sealing member including an annular flexible seal to receive at least a part of the head of the test animal mounted across the opening whereby the animal breathes air outside the test chamber, while the animal's body is within the test chamber; and a restraining member attachable to the sealing member, the restraining member including a clamp positionable behind the test animal's head, to prevent the animal from withdrawing its head from the restraining member. The animal is positioned in the restraining member and the sealing member is attached to the restraining member before insertion of the animal and assembly into the test chamber, avoiding previous difficulties in simultaneously placing an animal into the chamber while inserting the animal's nose into the seal. The plethysmograph also eliminates the necessity for a plunger to prevent rearward movement of the animal.