Ultra sonic alarm detector

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Description

FIG. 1 is a front elevational view of an ultra sonic alarm detector showing our design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a cross-sectional view thereof taken along line 5--5 in FIG. 1;

FIG. 6 is a cross-sectional view thereof taken along line 6--6 in FIG. 1; and

FIG. 7 is a cross-sectional view thereof taken along line 7--7 in FIG. 2.

Referenced Cited
U.S. Patent Documents
D243513 March 1, 1977 Galvin et al.
D248930 August 15, 1978 Kahl, Jr.
Other references
  • Electrical Consultant, May/Jun. 1979, p. 54, DS 6210 Annunciator System.
Patent History
Patent number: D271573
Type: Grant
Filed: Sep 16, 1981
Date of Patent: Nov 29, 1983
Assignee: Uro Denshi Kogyo Kabushiki Kaisha (Tokyo)
Inventors: Seihei Wada (Yachiyo), Kiyozumi Chino (Musahino)
Primary Examiner: Susan J. Lucas
Attorneys: Robert E. Burns, Emmanuel J. Lobato, Bruce L. Adams
Application Number: 6/302,813
Classifications
Current U.S. Class: D10/106
International Classification: D1005;