Philip M Marston

US Patent:

57789231, Jul 14, 1998

Filed:

Oct 25, 1995

Appl. No.:

8/547970

Inventors:

Philip William Marston - Pembroke MA

International Classification:

F16K 1520

US Classification:

137226

Abstract:

An anti-seepage, self-gauging inflation valve system includes an inlet port and an outlet port; a filler valve for introducing fluid under pressure from the inlet to the outlet port; a vent structure; an isolation chamber communicating with the vent structure; a gauging valve for sealing the chamber from the vent structure and automatically opening when the pressure in the chamber exceeds a predetermined level; an anti-seepage isolation valve for isolating the chamber from the outlet port; and an actuator device for opening the isolation valve to enable access between the gauging valve and the outlet port to vent pressure in excess of the predetermined level while the actuator device holds open the isolation valve.

US Patent:

52616991, Nov 16, 1993

Filed:

Oct 13, 1992

Appl. No.:

7/959331

Inventors:

Philip W. Marston - Pembroke MA

International Classification:

A63C 1122

US Classification:

280819

Abstract:

Attachments to a standard ski pole include a hook assembly clamped to the upper end of the ski pole, and a footrest crosspiece at the lower end of the pole which is rotatable from a retracted position parallel to the pole to an operative position transverse the pole. In use the hook is hung over a member of a ski lift, and the footrest is pivoted to transverse position where it can support the skier's feet.