Electricity: conductors and insulators – Insulators – Through wall or plate
Patent
1978-03-15
1980-01-08
Askin, Laramie E.
Electricity: conductors and insulators
Insulators
Through wall or plate
29630R, 219532, 219541, 339220R, 339276T, 339277R, H01B 1726, H05B 306
Patent
active
041829280
ABSTRACT:
A heating element terminal comprising a tubular conductor extending through the central bore of a two-piece insulating clamp member and an aligned aperture of the heating element frame clamped therebetween. The tubular conductor includes a flattened terminal plate at a first end projecting outwardly of the heating element and at the second opposite end includes a compression sleeve portion extending axially therefrom and projecting inwardly of the heating element. An end of the resistance wire of the heating coil is inserted into the central bore of the inwardly projecting compression sleeve portion which is crimped to secure the end of the resistance wire to the said second end of the terminal. The flattened plate formed at the first end of the terminal is drawn into abutment against the two-piece clamp member, and the second opposite end is similarly flattened at the point immediately adjacent the opposite side of the clamp member. The terminal is thus secured to the insulated two-piece clamp member to prevent substantial axial movement relative thereto, and to hold the two pieces of the member together with the frame of the heating element securely clamped therebetween. The outwardly extending terminal plate is provided with an aperture to receive a screw or other fastening means for connection to a conductor leading to an electrical source.
REFERENCES:
patent: 368987 (1887-08-01), Wheeler
patent: 1156710 (1915-10-01), Rowe
patent: 2388054 (1945-10-01), Hartzell
patent: 2417552 (1947-03-01), Ilker et al.
patent: 2470280 (1949-05-01), Ackerman
patent: 3943333 (1976-03-01), Kohjohn et al.
Atwood Felix M.
McDonald Harold D.
Murphy James E.
Askin Laramie E.
Guttman Richard T.
Kettleson Ernest S.
Rathbun Harold J.
Square D Company
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