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Publication numberUS3652873 A
Publication typeGrant
Publication dateMar 28, 1972
Filing dateJul 1, 1970
Priority dateJul 1, 1970
Publication numberUS 3652873 A, US 3652873A, US-A-3652873, US3652873 A, US3652873A
InventorsRoberts Robert D
Original AssigneeHoudaille Industries Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Direct current timer
US 3652873 A
Abstract
An automatic timing circuit for controlling a pump solenoid valve or other device which may be adjusted over a wide range of cycles per hour and which may be manually energized if desired.
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Description  (OCR text may contain errors)

United States Patent Roberts [4 1 7 Mar. 28, 1972 s41 DIRECT CURRENT TIMER 3,449,595 6/1969 Marek ..3o7/2s2 1 3,392,626 7/1968 Miller et a1 ...307/252 B [721 Rams ohm 3,309,535 3/1967 Sutherland et al. ..307/2s2 K [73] Assignee: Houdaille Industries, Inc., Buffalo, N .Y.

OTHER PUBLICATIONS [22] Filed: July 1, 1970 G. E. SCR Manual 4th Edinon, 1967; p. 153 (Fig. 8.13), 165 12 1 pp NM 51,567 (Fig. 8.26), 166, 199 (Fig, 9.33

52 us. c1. ..307/252 M, 307/252 w, 307/284, Primal? Examiner-Donald For!" 307 293 Assistant Examiner-L. N. Anagnos 511 1111. (:1. ..H03k 17/28, H03k 17/30, 11031; 17/72 Attorney-Hill, Sherman, Mewni, Gross and Simpson [581' Field of Search ..307/252 B, 252 G, 252 .l, 252 K,

307/252 L, 252 M, 284, 293, 305 RACT An automatic timing circuit for controlling a pump solenoid [56] References cited valve or other device which may be adjusted over a wide range UNITED STATES PATENTS of cycles per hour and which may be manually energized if desired. 3,349,386 10/1967 Zug ..307/293 X 3,353,032 11/1967 Morgan et a1. ..307/252 B 2 Claims, 1 Drawing Figure D I /Z 2/ I m 2; 11 w

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3309535 *Aug 28, 1964Mar 14, 1967Westinghouse Electric CorpSwitching circuitry for semiconductive controlled rectifiers
US3349386 *Mar 2, 1965Oct 24, 1967Electric Storage Battery CoBattery discharge indicator
US3353032 *Jun 9, 1964Nov 14, 1967Gen ElectricFlyback power amplifier circuit
US3392626 *Mar 15, 1965Jul 16, 1968Abraham ZederPhotographic color printing
US3449595 *Sep 7, 1965Jun 10, 1969Us NavyD.c. bus switching power contact
Non-Patent Citations
Reference
1 *G. E. SCR Manual 4th Edition, 1967; p. 153 (Fig. 8.13), 165 (Fig. 8.26), 166, 199 (Fig. 9.33).
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4166087 *Feb 4, 1975Aug 28, 1979Cline-Buckner, Inc.Automatic intermittent vapor dispenser
Classifications
U.S. Classification327/394, 327/477, 327/468, 327/397
International ClassificationH03K17/292, H03K17/72, H03K17/28, H03K17/73
Cooperative ClassificationH03K17/292, H03K17/73
European ClassificationH03K17/292, H03K17/73
Legal Events
DateCodeEventDescription
Mar 21, 1988ASAssignment
Owner name: LUBRIQUIP, INC.
Free format text: CHANGE OF NAME;ASSIGNOR:LUBRIQUIP-HOUDAILLE, INC.;REEL/FRAME:004862/0611
Effective date: 19880218
Feb 6, 1987ASAssignment
Owner name: LUBRIQUIP-HOUDAILLE, INC., HOUDAILLE-LUBRIQUIP, IN
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:LUBRIQUIP - HOUDAILLE, INC.;REEL/FRAME:004688/0030
Effective date: 19870115
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LUBRIQUIP - HOUDAILLE, INC.;REEL/FRAME:004688/0030
Owner name: LUBRIQUIP-HOUDAILLE, INC.,OHIO
Feb 21, 1985ASAssignment
Owner name: LUBRIQUIP - HOUDAILLE, INC., 18901 CRANWOOD PARKWA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HOUDAILLE INDUSTRIES, INC., A CORP OF DE;REEL/FRAME:004370/0143
Effective date: 19850131