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. 07, 1989
Filed:
Jul. 21, 1987
Henri Paole, Villemomble, FR;
Alain Ronjat, Delle, FR;
La Spirotechnique Industrielle et Commerciale, Carros, FR;
Abstract
Breathing apparatus for diving of the type comprising a breathing bag (13), a mouthpiece (30), inhaling and exhaling ducts (16 and 17) connected to the bag and to the mouthpiece these inhaling and exhaling ducts being respectively provided with inhaling and exhaling non return valves (18 and 19), and a so called 'drainage' device. The apparatus further comprises a device (22) for measuring the volume of inhaled and exhaled gas. The draining device comprises a switching means (21) which, in so called 'operating' position, is adapted to direct the flow towards the exhaling valve (19), and in so called 'non operating' position is adapted to direct the exhaled flow towards an outlet drain (23).