Solid state dual timer

Details Solid state dual timer Solid state dual timer

G - Physics

04

G

342/19

G04G 15/00 (2006.01) F16N 29/02 (2006.01) H03K 3/0231 (2006.01)

Patent

CA 1073083

SOLID STATE DUAL TIMER ABSTRACT OF THE DISCLOSURE A solid state electronic dual timer which, in one preferred embodiment, is utilized for dispensing a measured quantity of lubricant at predetermined time intervals. A contin- uously operating pump is selectively connected to the devices requiring lubricant by a control valve means. A capacitor is charged through a first circuit path from one predetermined level until it reaches a second predetermined level during which time the control valve means for dispensing the lubricant is energized. As soon as a second predetermined level is achieved, the pump means is deenergized, at which time the capacitor is caused to discharge towards said first predetermined level at a slow rate. The charging rate is typically adjustable over a range between 2-90 seconds in charging from said first to said second predeter- mined level and is further adjustable over a range which is typically of the order of a few minutes to several hours when discharging from said second to said first predetermined level so as to dispense lubricant during a period of from 2-90 seconds every two hours, for example, said interval being repeated on a cyclic basis.

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