Prosthetic valve key

Description

FIG. 1 is a perspective view showing our new design of a prosthetic valve key; the broken lines are shown for illustrative purposes only;

FIG. 2 is an elevation view taken from the top of FIG. 1;

FIG. 3 is a elevation view taken from the bottom of FIG. 3;

FIG. 4 is a front elevation view taken from the front of FIG. 1; and

FIG. 5 is an end elevation view taken from either the left or right side of FIG. 4.

Referenced Cited
U.S. Patent Documents
D31361 August 1899 Ball
D189198 November 1960 Hunter
D189406 December 1960 Harlow
841472 January 1907 Vanderherchen
2788817 April 1957 Leniz
4242932 January 6, 1981 Barmore
Other references
  • Daka-Ware, Standard Plastic Parts, Handles Pull and Knobs., Cat. No. 9, p. 6, Item No. #2620, Knob.
Patent History
Patent number: D272468
Type: Grant
Filed: Jun 15, 1981
Date of Patent: Jan 31, 1984
Assignee: United States Manufacturing Company (Pasadena, CA)
Inventors: Timothy D. Bulgarelli (Pasadena, CA), John L. Stonecipher (Sierra Madre, CA)
Primary Examiner: Bernard Ansher
Law Firm: Christie, Parker & Hale
Application Number: 6/273,761
Classifications
Current U.S. Class: D24/99; D24/8; D23/28; D 8/29; D/8300
International Classification: D2499;