IP Library › Granted Patent US 7,162,944
Granted Patent B2
US 7,162,944 · App. 10/907,878 · Granted Jan 16, 2007

Continuous reciprocating linear motion device

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,162,944
App. No.
10/907,878
Granted
Jan 16, 2007
Kind
B2
Abstract

A linear fluid piston device not requiring a fluid valve to operate and has operating piston stroke capabilities beyond traditional vibration fluid devices. The linear fluid device features (a) a movable piston means for linear motion, (b) a feature wherein said body provides rotational movement for fluid port alignment and a pressure vessel containing an (c) end cap and (d) cavity sized to guide the movable piston. In the improvement, the moveable piston provides a method for changing the linear direction in the event the total linear piston movement has not completed.

Claims (12)

1. A pressurized fluid linear motion device comprising (a) a movable piston means for linear motion, (b) a body that provides rotational movement for fluid port alignment, and (c) a pressure vessel containing an end surface to retain pressure and a cavity sized to guide the movable piston, wherein said movable piston means further provides said rotational movement.

2. The pressurized fluid linear motion device in claim 1 , wherein the moveable piston means includes an angled feature for rotation by interaction of a fixed feature.

3. The pressurized fluid linear motion device in claim 1 , wherein the moveable piston means includes a variable sloping feature for rotation by interaction of a fixed feature.

4. The pressurized fluid linear motion device in claim 1 , wherein the moveable piston means includes a feature for rotation by interaction with a fixed feature on said end surface.

5. The pressurized fluid linear motion device in claim 1 , wherein the moveable piston means includes a feature for rotation by interaction with a fixed feature on said cavity.

6. The pressurized fluid linear motion device in claim 1 , wherein the moveable piston means include alignment of inlet fluid flow, alignment of exhaust fluid flow, restriction to opposing inlet fluid flow, and restriction to opposing exhaust fluid flow means for linear movement of said moveable piston.

7. The pressurized fluid linear motion device in claim 1 , wherein the moveable piston means includes a recess for means of generating a pressure difference for rotational alignment of ports.

8. The pressurized fluid linear motion device in claim 1 , wherein the moveable piston means includes a recess for means of generating a pressure difference for rotational alignment of ports.

9. The pressurized fluid linear motion device in claim 1 , wherein the cavity includes a fixed feature means for providing said rotational movement.

10. The pressurized fluid linear motion device in claim 1 , wherein the cavity includes a fixed feature means for preventing said rotational movement.

11. The pressurized fluid linear motion device in claim 1 , wherein the end surface includes a fixed feature means for providing said rotational movement.

12. The pressurized fluid linear motion device in claim 1 , wherein the end surface includes a fixed feature means for preventing said rotational movement.

Continuity (1)
Related Publication 20060230917A1 · Oct 19, 2006