Patent ID: 6659229
Filing Date: 2003-12-09
Classification: F16N

Abstract:
An in-line lubricator comprising:a body having a working passageway formed therethrough, a fluid reservoir formed therein and a first bore formed therein to provide fluid communication between said working passageway and said fluid reservoir, said first bore having a first end terminating at said fluid reservoir to define a first port and a second end terminating at said working passageway to define a second port; an actuator having a transfer cavity formed in an outer surface thereof between a first seal and a second seal, said actuator extending through said first bore and supported in said body for relative movement between a first position wherein said transfer cavity is positioned within said first port and at least partially disposed within said fluid reservoir, said second seal seals said second port to prevent fluid communication between said transfer cavity and said working passageway and a second position wherein said transfer cavity is positioned within said second port and at least partially disposed within said working passageway, said first seal seals said first port to prevent fluid communication between said transfer cavity and said fluid reservoir; a spring biasing said actuator towards said first position; and wherein movement of said actuator from said first position to said second position transports a predetermined amount of lubricating fluid in said transfer cavity into said working passageway.