Patent ID: 7377406
Filing Date: 2008-05-27
Classification: F16N,G01F

Abstract:
1. A grease gun comprising a grease gun body having a passageway therethrough, an actuating lever pivotal upon the grease gun body, a first plunger longitudinally slidable within the passageway over a limited distance, the first plunger having a longitudinal passageway therethrough, a second plunger rotatably received in the longitudinal passageway of the first plunger, movement of the actuating lever from a retracted position towards a closed position with the second plunger in a high pressure orientation effects movement of the second plunger within the longitudinal passageway, movement of the actuating lever from the retracted position towards the closed position with the second plunger in a nominal orientation effects movement of the first and second plungers in unison.