ROBERT BRETT KRESS
Pharmacy in Hatboro, PA
License number
Pennsylvania PI091022L
Category
Pharmacy
Type
Pharmacy Intern
Address
Address
Hatboro, PA 19040
Professional information
Sheath-Core Yarn For Severe Thermal Protecting Fabrics And Method Therefor
US Patent:
4381639, May 3, 1983
Filed:
Jun 19, 1980
Appl. No.:
6/160956
Inventors:
Robert R. Kress - Hatboro PA
Assignee:
Record Industrial Company - King of Prussia PA
International Classification:
D02G 318, D02G 336, D02G 344
US Classification:
57229
Abstract:
A sheath-core yarn and methods of preparing it are disclosed. A sheath of aramid fibers surrounds a continuous filament core composed of an amorphous silica product containing at least 96% silica and having the thermal performance of a refractory material. The yarn is useful in woven or knitted safety garments which must provide protection under such severe conditions as splattering molten steel.