Metal deforming – Process – Coiling and/or twisting
Patent
1987-05-12
1989-07-18
Spruill, Robert L.
Metal deforming
Process
Coiling and/or twisting
72148, 29605, 242 45, 242 752, 140 922, B21C 4700, B21F 308, B21F 304, B65H 7700
Patent
active
048481351
ABSTRACT:
A process for making a coil having no bobbin comprises the steps of connecting one end of an electrical conductor to a coil making jig, rotating the jig to wind the electrical conductor thereon while applying a tension to the conductor as the coil is being formed, and removing the coil from the jig, the tension on outer windings of the coil being greater than that on inner windings thereof. Accordingly, the outer winding provides a high pressure against the inner winding such that a high friction is produced between the adjacent windings, whereby the windings of the coil do not subsequently separate from each other.
REFERENCES:
patent: 452003 (1891-05-01), Lipe
patent: 1027140 (1912-05-01), McKean
patent: 1062930 (1913-05-01), Ryden et al.
patent: 1277029 (1918-08-01), Benjamin
patent: 2040775 (1936-05-01), Lorig
patent: 2161076 (1939-06-01), Morgan
patent: 2214332 (1940-09-01), Kline
patent: 2655717 (1953-10-01), Dunn
patent: 2930014 (1960-03-01), Van Der Hoek et al.
patent: 4048713 (1977-09-01), Hvass
patent: 4739763 (1956-03-01), Silfverlin et al.
patent: 4773245 (1988-09-01), Lawson et al.
"The D-Shaped Main Field Coil for the ASDEX Fusion Experiment at the Max Planck Institute for Plasma Physics at Carching near Munich", Brown Boveri Review, vol. 64, Feb. 1977.
Mitsubishi Denki & Kabushiki Kaisha
Spruill Robert L.
LandOfFree
Process for making a coil does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for making a coil, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for making a coil will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-162262