RALPH M MANNING
Engineering in Winchester, MA

License number
Massachusetts 4001
Expiration Date
Jun 30, 1990
Type
Mechanical Engineer
Address
Address
Winchester, MA 01890

Personal information

See more information about RALPH M MANNING at radaris.com
Name
Address
Phone
Ralph Manning
37 Summer St, Andover, MA 01810
Ralph Manning
9 Lily Pond Ln, Cohasset, MA 02025
Ralph Manning
11 Yale St, Winchester, MA 01890
Ralph Manning
21 Wayside Ln, Ashland, MA 01721
Ralph Manning
15 Stevens St, Andover, MA 01810

Professional information

See more information about RALPH M MANNING at trustoria.com
Ralph Manning Photo 1
Subminiature, Multi-Pole Toggle Switch With Linear See-Saw Contacts

Subminiature, Multi-Pole Toggle Switch With Linear See-Saw Contacts

US Patent:
4254310, Mar 3, 1981
Filed:
Oct 1, 1979
Appl. No.:
6/080199
Inventors:
Francis D. Kirchoff - Waban MA
Ralph M. Manning - Winchester MA
Assignee:
Alco Electronic Products, Inc. - Andover MA
International Classification:
H01H 1900
US Classification:
200 6R
Abstract:
A multi-pole toggle switch achieves sub-miniature dimensions by mounting the four see-saw contacts, four stationary contacts and four actuating pads in two parallel, linear rows, each row on an opposite side of the path of the tip of the toggle lever plunger within the switch housing. A single actuator block carries the four pads and pressure is applied by a single spring from the plunger tip to the sliding block, then to the pads and then to the see-saw contacts. A depending tongue on the block slides in a groove in the base to form a moving insulation barrier between the rows of contacts.