Jack Alan Irwin

US Patent:

50711512, Dec 10, 1991

Filed:

Jan 16, 1990

Appl. No.:

7/464540

Inventors:

Jack L. Irwin - Swartz Creek MI

International Classification:

B62B 118

US Classification:

280402

Abstract:

A dolly particularly suitable for manipulation of tail wheel aircraft is disclosed as having a wheel and axle assembly with an elongated lever extending rearwardly from the axle. A wheel-holding assembly comprised of two arms forming an open rectangle extends from the lever. The wheel-holding assembly is fitted around the tail wheel of an aircraft without manipulation of the aircraft. A handle member is supplied at the end of the elongated lever to aid in manipulation and in lifting of the lever to remove the tail wheel of the aircraft from the ground so that the plane may be manipulated through the dolly. The dolly is also provided with a hitch assembly for use with tractor vehicles.

US Patent:

50373030, Aug 6, 1991

Filed:

Sep 22, 1989

Appl. No.:

7/410830

Inventors:

Jack L. Irwin - Swartz Creek MI

International Classification:

A63B 6918

US Classification:

434253

Abstract:

A mirrored training device for attachment to a ridden board-type athletic device is disclosed. The training device comprises a convex mirror in a shockproof case having attachment means for securing the training device to the board surface. The mirror casing may be angled, or unequal length legs may be provided, so that the attached convex mirror is inclined towards the rider's normal board riding position to provide a full reflection thereof. Dividing lines are provided on the mirror surface as reference points for the posture of the athlete. In an alternative embodiment the mirrored device is built into the ridden-board-type device.