Patent ID: 6920961
Filing Date: 2005-07-26
Classification: F16N

Abstract:
1. A zerk fitting coupler device comprising, in combination: a body member having a top side, a bottom side, a lateral side, and a lateral entry slot in the lateral side and bottom side; a throughbore in the body member connected to the slot and extending between the top side and bottom side of the body member, a transverse inlet passage in the body member connected to the throughbore to define a fluid inlet pathway into the throughbore, said throughbore including a seat intermediate the inlet passage and the slot; a unitary slide valve member slidably mounted in the throughbore, said valve member including a throughpassage for connecting the inlet passage to the slot, said slide valve member engageable with the seat to limit movement toward the slot; and a plug in the body throughbore coaxial with and opposed to the slide valve member to limit movement of the slide valve member away from the slot; said slide valve member further including a pressure surface within the throughbore for engagement by fluid in the throughbore from the inlet passage to apply a force of fluid against the pressure surface and a concomitant force of the slide valve member into sealing engagement with the fitting positioned in the slot, said slide valve further including a circumferential seat at one end opposite the pressure surface, said circumferential seat for engaging the zerk fitting whereby the device is mountable on a zerk fitting by sliding the slot over the fitting to align the fitting with the slide valve member throughpassage for flow of fluid into the fitting.