Adjustable stroke clamp
AssigneeBTM Corporation
InventorsEdwin G. Sawdon, Dean J. Kruger, Stephen E. Sawdon
Life of this patent
Estimating the term…
Abstract
An apparatus to position or clamp a work piece includes a body, a generally linearly moving powered actuator positioned in the body, and a mechanism to adjust an available stroke of the actuator. The actuator has a first piston coupled to a second piston. The available stroke is defined by a distance spanned by the first and second pistons.
Claims42
An apparatus for interfacing with a work piece, the apparatus comprising:
- a body;
- and
- an actuator linearly moveable in relation to said body, said actuator including a first piston adjustably connected to a second piston, wherein a range of movement of said actuator is defined by a position of said first piston relative to said second piston.
A apparatus comprising:
- a body having a bore;
- a first piston slidably moveable in said bore;
- a second piston positioned substantially coaxially to said first piston said bore;
- and
- an adjustment mechanism coupling said first piston and said second piston, said adjustment mechanism being operable to position said first piston a spaced distance relative to said second piston to limit piston stroke travel.
An apparatus to position or clamp a work piece, the apparatus comprising:
- a body;
- a generally linearly moving powered actuator positioned in said body;
- and
- a mechanism operable to adjust an available stroke of said actuator, said actuator having a first piston coupled to a second piston, said available stroke being defined by a distance spanned by said first and second pistons.
An apparatus comprising:
- a body;
- an actuator slidingly coupled to said body, said actuator being adjustable to define a changeable stroke distance, said actuator operably traveling relative to said body;
- and
- a driver rotatably coupled to said body, said driver being selectively engagable with said actuator to adjust said stroke distance.
A work piece engaging apparatus comprising:
- a piston having an axially extending aperture with a transversely extending detent formed therein;
- and
- a rod having an annular collar positionable in said detent to interconnect said piston and said rod.
An apparatus comprising:
- a body;
- a first piston slidably moveable in said body;
- a second piston slidably moveable in said body;
- a threaded member having a socket, said threaded member coupling said first piston to said second piston, wherein said threaded member is operable to vary a distance between said first and second pistons to limit piston stroke travel;
- and
- a driver rotatably coupled to said body, said driver including a protruding shank selectively engageable with said socket of said threaded member wherein said threaded member rotates in response to rotation of said driver when said driver is in the engaged position.
A work piece engaging apparatus comprising:
- a body having a first cavity and a second cavity;
- a piston slidably moveable within said first cavity, a rod having a first end slidably moveable within said first cavity and a second end slidably moveable within said second cavity wherein said first end of said rod is coupled to said piston;
- and
- a passageway extending through said body interconnecting said first cavity and said second cavity to allow a pressurized fluid to substantially act on said piston and at least one of said first and second ends of said rod substantially simultaneously.
A method of adjusting a stroke of an apparatus having a body with a tool, the apparatus having a first piston adjustably coupled to a second piston, the first and second pistons slidably moveable in the body, the method comprising:
- (a) engaging an adjustment mechanism with the tool external to said body;
- (b) rotating the tool;
- and
- (c) adjustably moving the first piston relative to the second piston.
Dependencies are inferred from the claim text.