Title:
Presence sensor
United States Patent D368436


Inventors:
Stringer, Christopher J. (San Francisco, CA)
Application Number:
29/038598
Publication Date:
04/02/1996
Filing Date:
05/09/1995
Assignee:
Steelcase Inc. (Grand Rapids, MI)
Primary Class:
Field of Search:
D10/106, D10/104, 340/521, 340/540, 340/555, 340/556, 340/557, 340/565, 340/571, 340/600, 340/628, 340/629
View Patent Images:
US Patent References:
D356748Passive infra-red sensorMarch, 1995CarmiD10/106
D346567Passive infra-red sensorMay, 1994RimonD10/106
D339079Passive infrared intruder detection housingSeptember, 1993BehlkeD10/106



Primary Examiner:
DAVIS, ANTOINE D
Attorney, Agent or Firm:
PRICE HENEVELD COOPER (DEWITT AND LITTON 695 KENMOOR SE P O BOX 2567, GRAND RAPIDS, MI, 49501, US)
Claims:
1. The ornamental design for a presence sensor, as shown and described.

Description:

FIG. 1 is a perspective view of a presence sensor, showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a bottom plan view;

FIG. 4 is a left-hand side elevational view, wherein the right-hand side elevational view is identical; and,

FIG. 5 is a rear elevational view thereof.