Dispensing – With discharge assistant – Insertable cartridge or removable container
Patent
1993-06-07
1994-06-28
Kashnikow, Andres
Dispensing
With discharge assistant
Insertable cartridge or removable container
222390, 222391, G01F 1100
Patent
active
053239342
ABSTRACT:
There is disclosed a grease gun including a chamber with a cap on one end and head on the other end. Inside the head is a cavity which may receive grease from the chamber. Part of the cavity forms a cylinder in which reciprocates a piston. The piston in turn operates a ratchet on its upward stroke, as grease fills the cylinder. The ratchet turns a rod on which is threaded a follower. The rotation of the rod moves the follower towards the head and forces grease into the cavity and thus into the cylinder. On the downward stroke, the piston is disengaged from the ratchet and forces grease out of the cavity into a discharge conduit. Valves control movement in and out of the cavity. The ratchet is rotatably mounted outside of the chamber. Also, the grease gun preferably includes a split nut threaded on the rod adjacent the follower and a shoulder adjacent the cap and oriented to split the split nut on engagement with the split nut. A setting ring is used to reset the split nut.
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Kashnikow Andres
Kaufman Joseph A.
Lambert Anthony R.
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