Resources Contact Us Home
Deep nested filament winding

Image Number 2 for United States Patent #4925125.

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.

  Recently Added Patents
Probiotic Bifidobacterium strains
Alkaline battery
Irreversible thermochromic ink compositions
Registration and network access control
Mesa-shaped piezoelectric resonator element
Methods and apparatus for clock signal synchronization in a configuration of series connected semiconductor devices
Method and system for facilitating micropayments in a financial transaction system
  Randomly Featured Patents
Organic EL device
Glass-ceramic pressure sensor support base and its fabrication
Two-component system that controls bacterial membrane synthesis
Photorefractive glass article
System for softproofing a color reproduction
Pin for spike tire
GaAs Field effect transistor with a non-volatile memory
5'-deoxy-cytidine derivative administration to treat solid tumors
Torch ignition type internal combustion engine
Snowplow and implement attachment means for a vehicle