Motor speed controller

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective view of a motor speed controller showing our new design;

FIG. 2 is a front view of a motor speed controller showing our new design on a slightly larger scale;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a top view of a motor speed controller showing our new design on an even larger scale;

FIG. 7 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
D281315 November 12, 1985 Kueld
D284076 June 3, 1986 Moeller
D287360 December 23, 1986 Lehmann
4557225 December 10, 1985 Sagues et al.
4620263 October 28, 1986 Ito
4769557 September 6, 1988 Houf et al.
Foreign Patent Documents
2808997 September 1979 DEX
Other references
  • Variable Speed Controls on p. 252 of Design News, 10-7-85. Motion Controllers on p. 92 of Design News, 8-3-87.
Patent History
Patent number: D318845
Type: Grant
Filed: Dec 2, 1986
Date of Patent: Aug 6, 1991
Assignee: La Telemecanique Electrique
Inventors: Raymond Plumeret (Asnieres), Philippe Rix (Paris), Rene Fouret (Rueil Malmaison)
Primary Examiner: Susan J. Lucas
Assistant Examiner: J. Sincavage
Attorney: William A. Drucker
Application Number: 6/937,653