Patent ID: 6585231
Filing Date: 2003-07-01
Classification: B66F,F15B

Abstract:
A pneumatic jack comprising:a housing having a passageway operationally cooperating with a chamber therein; a cover removably attached to said housing; a piston slideably disposed within the chamber; a lifting element disposed above said cover for engagement with an object to be lifted; a rod attached to said piston and to said lifting element; said rod freely passing through and guided by a bushing disposed on said cover; a handle pivotally attached to and cooperatively engaged with said housing for manipulatively placing said pneumatic jack in an operative position relative to the object to be lifted and for removing said pneumatic jack from the operative position after the object has been lowered; and means for pneumatically actuating said pneumatic jack to raise and to maintain the object in an elevated position wherein said actuating means includes a container with a gas fill valve and said container having a pressurized gas therein and a nipple connected between said gas fill valve and a throttle valve for introducing the pressurized gas into the passageway and into the chamber via a hose disposed between said throttle valve and said housing adjacent to the passageway.