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:
Feb. 12, 1991
Filed:
Dec. 12, 1988
Applicant:
Inventor:
Derek R Allen, San Juan Capistrano, CA (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
181131 ; 181130 ;
Abstract
A stethoscope including a stethoscope head, a pair of ear tips, and binaural tube means providing two individually separate air passages including a longer passage and a shorter passage extending between the stethoscope head and each ear tip. A substantially U-shaped binaural yoke includes channel members for receipt of the binaural tube members whereby the longer tube can be retained within the yoke without producing any sharp bends which would cause a loss of sound transmission. the stethoscope is designed to be made entirely of plastic materials.