DONALD HUMPHREYS
Broker in Marblehead, MA

License number
Massachusetts 75018
Issued Date
Jan 1, 1986
Expiration Date
Mar 20, 1992
Type
Salesperson
Address
Address
Marblehead, MA 01945

Professional information

Donald Humphreys Photo 1

Adjustable Shoe-Skate Assembly

US Patent:
4139209, Feb 13, 1979
Filed:
Dec 8, 1977
Appl. No.:
5/858733
Inventors:
Donald R. Humphreys - Marblehead MA
International Classification:
A63C 130
US Classification:
280 1112
Abstract:
A skate blade carrier integral with or attached to a shoe bottom has a heel support portion, a forepart support portion, and a strut section interconnecting the support portions. The base of the carrier has a longitudinal kerf for partly receiving the blade. Means secured to the carrier is adapted to adjustably tilt the blade about an axis extending widthwise of the shoe beneath its heel and to selectively shift a skater's locality of balance on the blade along its exposed edge.


Donald Humphreys Photo 2

Rivet Setter

US Patent:
D253892, Jan 8, 1980
Filed:
Feb 27, 1978
Appl. No.:
5/881837
Inventors:
Donald R. Humphreys - Marblehead MA
Assignee:
Custom Radius Corporation - Topsfield MA
International Classification:
D1509
US Classification:
D15128