Deep nested filament winding

Details Deep nested filament winding Deep nested filament winding

1988-11-14

1990-05-15

Gilreath, Stanley N.

Winding, tensioning, or guiding

Bobbin or spool

Double-headed spool

2421184, 242159, B65H 7518

Patent

active

049251252

ABSTRACT:
This invention relates to a technique for forming filament windings which are designed to enable filament (52) to be paid out at a high rate used particularly for guided missile systems using a filament as a data link. Numerous prior art techniques exist which have disadvantages such as difficulty in winding, poor coil stability, and high drag associated with paying out of the filaments. Additionally, some of the prior art techniques do not result in a densely packed coil, thus requiring larger size spools and compromising the packaging efficiency of the overall system. In accordance with this invention, a "deep nested" filament coil winding (80, 94, 102) is provided. By providing a pitch distance of approximately the filament diameter times the square root of 3, and advancing the coils in two equal steps as the turns wrap around the coil spool, a highly densely packed coil is provided which can be wound against a single flange (84, 104) or a pair of separated flanges (84, 86). The winding features excellent mechanical stability and can be wound using conventional winding machines.

REFERENCES:
patent: 2734695 (1956-02-01), LeBus, Sr.
patent: 3391443 (1968-07-01), LeBus, Sr.

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