SAMUEL D PARRISH
Broker in Marlboro, MA

License number
Massachusetts 108517
Issued Date
Apr 20, 1988
Expiration Date
Oct 22, 1990
Type
Salesperson
Address
Address
Marlboro, MA 01752

Professional information

Samuel Parrish Photo 1

Waterproofing Loudspeaker Cones

US Patent:
2009024, Oct 1, 2009
Filed:
Mar 27, 2008
Appl. No.:
12/056428
Inventors:
Agota F. Fehervari - Lexington MA, US
Samuel D. Parrish - Marlborough MA, US
Martin J. Schad - Shrewsbury MA, US
Mark P. Temple - Bolton MA, US
Robert E. Evans - Shelton CT, US
Christopher D. Weaver - Orange CT, US
Assignee:
BOSE CORPORATION - Framingham MA
International Classification:
G10K 13/00, B32B 17/02, D21H 13/40
US Classification:
181149, 428426, 162145
Abstract:
A water-resistant composite paper, suitable for use as a loudspeaker component, is made from a composition including wood pulp, hydrophobic fibers, and stiffening fibers that retain stiffness when wet. In some examples, fibrillated acrylic fibers and glass fibers are used.