US Patent: 2,724,289 - Coupling apparatus


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US Patent: 2,724,289

Coupling apparatus

Patentee:

William A. Wight (exact or similar names) - Hinsdale, IL

USPTO Classifications:

74/405, 74/440, 74/625

Tool Categories:

industrial machines : industrial machine mechanisms : industrial machine gearing

Assignees:

Janette Electric Mfg. Co. - Morton Grove, IL

Manufacturer:

Janette Electric Mfg. Co. - Morton Grove, IL

Witnesses:

Unknown

Patent Dates:
Applied:	Apr. 27, 1954
Granted:	Nov. 22, 1955

Patent Pictures:

USPTO (New site tip)
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Vintage Machinery entry for Janette Mfg. Co.

Description:

This coupling supports both an electric motor drive and a manual drive; it automatically de-couples each power source from the load when the applied torque falls below a certain level.