Air-operated lubricant pump

Details Air-operated lubricant pump Air-operated lubricant pump

1990-03-12

1992-03-03

Michalsky, Gerald A.

Pumps

Motor driven

Fluid motor

91337, 91346, F04B 912

Patent

active

050927469

ABSTRACT:
A lubricant pump that includes a pneumatic piston motor operated by compressed air, and is equipped with a control device that utilizes a slide valve mounted for reciprocal axial movement on the piston rod. A radially acting spring locking mechanism includes two index grooves spaced from each other axially along the piston rod, separated by the same predetermined distance that separates a first air inlet position and a second air inlet position of the piston slide valve. A helical compression spring is contained in a cavity within the piston slide valve. Axial movement of the reciprocating piston rod in one direction compresses the spring and releases the locking mechanism, whereupon the compressed spring immediately expands and moves the slide valve from one of its air inlet positions to the other of those positions.
Four annular, substantially airtight, slidable contacts are provided to isolate the helical compression spring and the releasable locking mechanism from compressed air flowing into, and air at lower pressure flowing out of, the control device.

REFERENCES:
patent: 2258493 (1941-10-01), Hull
patent: 2707456 (1955-05-01), Schweisthal
patent: 3548717 (1970-12-01), Passaggio
patent: 4079660 (1978-03-01), Ives

Affiliated with

Also associated with

Rating

Air-operated lubricant pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Air-operated lubricant pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air-operated lubricant pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-268564