John Stanley Rodgers

US Patent:

7713042, May 11, 2010

Filed:

Nov 7, 2009

Appl. No.:

12/614416

Inventors:

John Rodgers - Ellenton FL, US

International Classification:

F01C 21/18
F04C 15/06

US Classification:

418184, 418183, 418188, 418185, 418267, 123243

Abstract:

A rotary engine configured to use compressed air or high pressure steam to produce power. It has a casing with two peripheral exhaust ports each adjacent to a flattened area, a rotor having three slotted pistons, and a center valve with two opposed inlet ports that provide high pressure steam or compressed air to the pistons. Each rotor revolution produces three power strokes. Furthermore, the volume of air used for a single cycle is reduced, as a result of the air traveling through its pistons. Also, the engine stops when the vehicle it powers is at rest, and a spring inside each piston causes its angled tip to contact the rotary chamber upon start up. In addition, it is inexpensive to manufacture, as there is not much tooling needed to make the rotary engine, and it has only four moving parts, its rotor and the three pistons attached to it.

US Patent:

56431139, Jul 1, 1997

Filed:

Sep 15, 1995

Appl. No.:

8/528929

Inventors:

John Rodgers - Ellenton FL

International Classification:

A63B 5700

US Classification:

473386

Abstract:

A device for facilitating forced insertion of a golf tee into a ground surface at a predetermined height. The inventive device includes a clamp for engaging a shaft of a golf tee. A positioning screw engages a head of the golf tee such that a predetermined length of the shaft projects beyond the clamp for insertion into the ground.

US Patent:

D3872386, Dec 9, 1997

Filed:

Dec 8, 1995

Appl. No.:

D/047626

Inventors:

John Rodgers - Ellenton FL

International Classification:

3100

US Classification:

D 7324