Diaphragm

- Lucas Industries Limited
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Description

FIG. 1 is a bottom perspective view of a diaphragm showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a sectional view taken on line 3--3 of FIG. 2; and

FIG. 4 is a side elevational view thereof.

The top is plain and unornamented.

Referenced Cited
U.S. Patent Documents
3317087 September 1964 Landis
3722756 March 1973 Cramer, Jr.
Foreign Patent Documents
1432245 April 1969 DEX
Patent History
Patent number: D252156
Type: Grant
Filed: Mar 15, 1976
Date of Patent: Jun 19, 1979
Assignee: Lucas Industries Limited (Birmingham)
Inventors: Roy A. Tabony (Birmingham), David Hadfield (Burton-on-Trent)
Primary Examiner: Robert C. Spangler
Attorney: John Clarke Holman
Application Number: 5/666,685
Classifications
Current U.S. Class: D23/69; D23/47
International Classification: D2302;