Medical appliance for percussive respiratory therapy


FIG. 1 is a perspective view of the medical appliance for percussive therapy in accordance with my new design;

FIG. 2 is a side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof, it being understood that the appliance is open at the bottom and that the interior contours follow the exterior contours.

Referenced Cited
U.S. Patent Documents
D157605 March 1950 Krause
D233703 November 1974 McNair
3401686 September 1968 Edwards
4196722 April 8, 1980 Vanderwoude
Patent History
Patent number: D274554
Type: Grant
Filed: Dec 8, 1980
Date of Patent: Jul 3, 1984
Inventor: Peter B. Duffy (North Hollywood, CA)
Primary Examiner: Susan J. Lucas
Attorneys: Allston L. Jones, David A. Boone
Application Number: 6/214,340
Current U.S. Class: D24/36