Motors: expansible chamber type – Independently operated timer – delay – pattern or cyclic control – Of independently movable working members
Patent
1973-10-30
1976-01-06
Schwadron, Martin P.
Motors: expansible chamber type
Independently operated timer, delay, pattern or cyclic control
Of independently movable working members
91413, 92152, 13762418, 13762420, 251230, 417221, 417510, F15B 2102
Patent
active
039304345
ABSTRACT:
The hydraulic controller is for controlling the operation of a plurality of hydraulically controlled devices. Hydraulic fluid may be selectively distributed by the controller to various controlled hydraulic devices in a timed and predetermined sequence. The timing of the distribution of hydraulic fluid by the controller can be quickly and easily varied by various control knobs on the controller to thereby vary the timed operated period of the various machine operations controlled by such devices without affecting the timed operation of other machine operations. The controller is supplied with a source of hydraulic fluid under a generally constant pressure. Cam means are associated with each of a plurality of fluid flow distributing valves for operating such associated valve members in a predetermined sequence of valve positions upon advancement of the cam means relative thereto. Drive means including a pair of opposed indexing and timing device pistons; advance the cam means relative to the valves to operate them in sequence of positions and in operating intervals or dwell periods thereof. The indexing piston has an effective working diameter in its cylinder which is greater than that of the timing piston such that it normally overrides the timing piston. The cam drive means includes lost motion means for allowing the cam means and associated distributing valves to dwell during timing strokes. Fluid flow restrictor means adjustably restrict the flow of fluid through the venting means to control the speed of the timing stroke and thereby provide an adjustable timed interval of operation of the device then being operated.
REFERENCES:
patent: 1238670 (1917-08-01), Holbrook
patent: 2228700 (1941-01-01), Hamner et al.
patent: 2322611 (1943-06-01), Winkler
patent: 2516149 (1950-07-01), Samiran
patent: 2579598 (1951-12-01), Morrison
patent: 3033000 (1962-05-01), Hibbert et al.
patent: 3045601 (1962-07-01), Rippingille
patent: 3379099 (1968-04-01), Missioux
patent: 3422847 (1969-01-01), Polizzi
patent: 3428085 (1969-02-01), Haberstump
patent: 3444896 (1969-05-01), Van Deer Veer
patent: 3454784 (1969-07-01), Wantz et al.
Hershkovitz Abraham
Schwadron Martin P.
The Toro Company
LandOfFree
Hydraulic controller does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic controller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic controller will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2342223