Pressure-wave switch

- Bircher AG
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Description

FIG. 1 is a front view of the pressure-wave switch of the present invention;

FIG. 2. is a rear view of the pressure-wave switch of FIG. 1;

FIG. 3 is a plan view of the pressure-wave switch of FIG. 1;

FIG. 4 is a bottom view of the pressure-wave switch of FIG. 1; and,

FIGS. 5-6 are respective side views of the pressure-wave switch of FIG. 1.

Claims

The ornamental design for a pressure-wave switch, as shown and described.

Referenced Cited
U.S. Patent Documents
D46130 July 1914 Klein
D206122 November 1966 Bradbury et al.
D224114 July 1972 Mueller et al.
D280501 September 10, 1985 Walters
D301868 June 27, 1989 Schwartz
D313397 January 1, 1991 Willcox
5130503 July 14, 1992 Heiress
Patent History
Patent number: D453740
Type: Grant
Filed: Apr 26, 2000
Date of Patent: Feb 19, 2002
Assignee: Bircher AG
Inventors: Christof Lexer (Jestetten), Godert de Jager (Uelketswil)
Primary Examiner: Ted Shooman
Assistant Examiner: Selina Sikder
Attorney, Agent or Law Firm: Bachman & LaPointe, P.C.
Application Number: 29/122,364
Classifications
Current U.S. Class: Switch Or Casing Therefor (18) (D13/158)
International Classification: 1303;