Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 809
Improved mode of changing the poles of electro-magnets
Patentee:
Nelson Walkly (exact or similar names) - Tuscaloosa, AL

USPTO Classifications:
310/46

Tool Categories:
electrical devices : electric motors

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Georgee Rix
Barent Dubois

Patent Dates:
Granted: Jun. 27, 1838

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Description:
This patent gives an early commutator design. Compare to Davenport's commutator in patent 132.

Copyright © 2002-2024 - DATAMP