Energizing and timing circuits for electromagnetic devices

Title:

Energizing and timing circuits for electromagnetic devices

United States Patent 2508973

Inventors:

Smith, Clyde E.

Application Number:

US54065144A

Publication Date:

05/23/1950

Filing Date:

06/16/1944

Export Citation:

Assignee:

TAYLOR WINFIELD CORP

Primary Class:

361/201

Other Classes:

315/208, 315/238, 361/205

International Classes:

H01F7/18; H03K17/288

View Patent Images:

US Patent References:

2356765	Welding system	1944-08-29
2299941	Controller for electric circuits	1942-10-27
2296580	Electronic timing circuit	1942-09-22
2249488	Timing device	1941-07-15
2127080	Timer	1938-08-16
2082644	Electric valve translating circuit	1937-06-01
2040677	Pulsation apparatus	1936-05-12
2024019	Electric weld controlling device	1935-12-10
1970455	Electric selector	1934-08-14
1819868	Electroresponsive device	1931-08-18
1762811	Electric timing device	1930-06-10

Foreign References:

GB318316A	1929-09-05
GB551058A	1943-02-05