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:
Nov. 21, 1995
Filed:
Aug. 16, 1994
Applicant:
Inventors:
J Phil Mobley, Canyon Country, CA (US);
Chaoying Zhang, Alhambra, CA (US);
Sigfried D Soli, Sierra Madre, CA (US);
Chris Johnson, Irvine, CA (US);
Drew O'Connell, Cold Spring Harbor, NY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
128867 ; 128864 ;
Abstract
A pressure regulating earplug for regulating the rate of change of pressure inside an ear to minimize the pressure differential between the middle ear and a volume of the external ear cavity adjacent the ear drum is made of an ear plug adapted to fit tightly within the external ear cavity with no or minimal air leakage, and disposed within the earplug is a pressure regulator with a slow leak rate. Examples of the material which causes the pressure regulation include porous metal and porous ceramic material.