Ultrasonic intrusion detector Patent Grant Beeson , et al. November 23, 1 [American District Telegraph Company]

Ultrasonic intrusion detector

Beeson , et al. November 23, 1

Patent Grant D266996

U.S. patent number D266,996 [Application Number 06/119,411] was granted by the patent office on 1982-11-23 for ultrasonic intrusion detector. This patent grant is currently assigned to American District Telegraph Company. Invention is credited to Kenneth E. Beeson, H. Patrick Thornton.

United States Patent	D266,996
Beeson , et al.	November 23, 1982

Ultrasonic intrusion detector

Claims

The ornamental design for an ultrasonic intrusion detector, as shown and described.

Inventors:	Beeson; Kenneth E. (Waltham, MA), Thornton; H. Patrick (Acton, MA)
Assignee:	American District Telegraph Company (New York, NY)
Appl. No.:	06/119,411
Filed:	February 7, 1980

Current U.S. Class:	D10/106.6
Current International Class:	D1005
Field of Search:	;D10/106,121 ;340/522,541,542,552,551,553,561,562,565,566

References Cited [Referenced By]

U.S. Patent Documents


D219316	November 1970	Lohr
D226539	March 1973	Pearsall

Other References

Nutone Catalog, .COPYRGT.1979, p. 35, Ultrasonic Motion Detector..

Primary Examiner: Lucas; Susan J.
Attorney, Agent or Firm: Weingarten, Schurgin & Gagnebin

Description

FIG. 1 is a perspective view of an ultrasonic intrusion detector showing our new design;

FIG. 2 is a plan view thereof on an enlarged scale;

FIG. 3 is an end view thereof on an enlarged scale; and

FIG. 4 is a plan view thereof on an enlarged scale illustrating the opposite side to that seen in FIG. 1 and FIG. 2.

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