Pneumatic actuator for an electric switch

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Information

Patent Grant
D339570

References
Source

Patent Number
D339,570
Date Filed
Friday, July 19, 1991
33 years ago
Date Issued
Tuesday, September 21, 1993
31 years ago

Inventors
- Phillip W. Dwyer
Original Assignees
- Dwyer Precision, Inc.
Examiners
- Burke; Wallace R.
- Sincavage; J.
Agents
- Poff; Clifford A.

US Classifications
- D13 - Equipment for production, distribution, or transformation of energy
Field of Search
- US
- D13 167
- D13 173
- 200 81 R
- 200 81 H
- 200 83 Z
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a pneumatic actuator for an electric switch, as shown and described.

US Referenced Citations (6)

Number	Name	Date	Kind
D216697	Brooks	Mar 1970
D272821	Perethian	Feb 1984
D316249	King-Pei	Apr 1991
2875291	Armstrong et al.	Feb 1959
4584508	Kobayashi et al.	Apr 1986
5155309	Dwyer	Oct 1992