Firearms – Stocks
Patent
1985-12-30
1987-05-12
Kyle, Deborah L.
Firearms
Stocks
89 141, 1651341, F41C 2300, F41D 1118
Patent
active
046638750
ABSTRACT:
A generally round handguard assembly (10) for a rifle barrel (18) has substantially identical bottom and top mating sections (26, 28). The handguard assembly has a shell with an upper and lower row of vent holes (36) formed by two shell sections (31), an outer liner, formed by two outer liner sections (35), with upper and lower rows of vent holes (58) and an inner liner, formed by two inner liner sections (33), with upper and lower pairs of laterally opposed rows of vent holes. An outer annular volume (94), an intermediate annular volume (92) and an inner annular volume (90), which are in fluid communication, are defined within the shell by its inner periphery and the liners. Air flow in the inner volume cools the barrel and gas tube (22) and air flow in the outer and intermediate volume maintains the shell at a reasonable temperature during repeated firings.
REFERENCES:
patent: 2126792 (1938-08-01), MacGregor
patent: 2965994 (1960-12-01), Sullivan
patent: 3075314 (1963-01-01), Bakker
patent: 3090150 (1963-05-01), Stoner
patent: 4413668 (1983-11-01), Allard
patent: 4536982 (1985-08-01), Bredburg et al.
Colt Industries Inc.
Dornon Richard A.
Kyle Deborah L.
Parr Ted L.
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