Ultrasonic object detection device

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Description

FIG. 1 is a perspective view of an ultrasonic object detection device showing my new design.

FIG. 2 is a rear elevational view thereof.

FIG. 3 is a front elevational view thereof.

FIG. 4 is a right side elevational view thereof.

FIG. 5 is a left side elevational view thereof.

FIG. 6 is a top plan view thereof.

FIG. 7 is a bottom plan view thereof.

The termination of the wires shown extending from the front indicate wires of an indeterminate length.

Referenced Cited
U.S. Patent Documents
D260741 September 15, 1981 Lam
D271573 November 29, 1983 Wada et al.
Other references
  • Annunciator Interface Module on p. 54 of Electrical Cousultant May/Jun. 1979. Smoke and Burglar Alarm on p. 170 of Good Housekeeping, 2-1980.
Patent History
Patent number: D308347
Type: Grant
Filed: Dec 22, 1986
Date of Patent: Jun 5, 1990
Assignee: E. L. Bryenton & Associates, Inc. (Ontario)
Inventors: Earl L. Bryenton (Ottawa), Eric Hillmer (Ottawa), Robert J. Arnott (Carleton Place)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Joel Sincavage
Law Firm: Kenyon & Kenyon
Application Number: 6/944,825
Classifications
Current U.S. Class: D10/106