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:
Mar. 11, 2014
Filed:
Nov. 19, 2008
Applicant:
Nils T. Ottestad, Husoysund, NO;
Inventor:
Nils T. Ottestad, Husoysund, NO;
Assignee:
Ottelstad Breathing Systems AS, Husousund, NO;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01B 31/00 (2006.01); F01B 19/00 (2006.01); F01B 21/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A chamber having an internal volume, end surfaces and a side wall. The chamber is adapted to change its volume by leakage-free displacement of the end surface. The side wall has at least three adjacent sleeves (-), and an elastic seal (-) is arranged between each of the sleeves, such that the seals are pressurized and expanded when the sleeves are moved due to a displacement of the end surfaces.