Resumes
Resumes
Robert Wahlstedt Phones & Addresses
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1540 Sextant Ave, Roseville, MN 55113 (651) 633-3568
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Saint Paul, MN
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Forest Lake, MN
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Forest Lake, MN
Work
Position:
Homemaker
Publications
Wikipedia
iSketch
View pageCommercial? No: Type of site: Drawing website: Registration: None: Owner: Robert Wahlstedt: Created by: Robert Wahlstedt: Launched: 15 June 1999: Current status: Active
Us Patents
Magnetic Spring Grip Device
View pageUS Patent:
39749029, Aug 17, 1976
Filed:
Jun 26, 1975
Appl. No.:
5/590401
Inventors:
Robert L. Wahlstedt - Roseville MN
Robert F. Rasmussen - Minneapolis MN
Lee W. Johnson - Lake Elmo MN
Robert F. Rasmussen - Minneapolis MN
Lee W. Johnson - Lake Elmo MN
Assignee:
Reel Precision Maufacturing Corporation - St. Paul MI
International Classification:
F16D 2710
US Classification:
192 84T
Abstract:
An electromagnetically actuated clutch or the like having a helical spring disposed about the surface of a relatively rotatable drum, and an electromagnet with a fixed annular pole piece closely adjacent the free end coil of the spring. The spring is induced to grip the drum surface by the action of magnetic flux passing from the drum to the spring and thence directly to the polepiece.
Electromagnetic Spring Clutch
View pageUS Patent:
42639956, Apr 28, 1981
Filed:
Mar 3, 1978
Appl. No.:
5/883156
Inventors:
Robert L. Wahlstedt - Roseville MN
Assignee:
Reell Precision Manufacturing Corporation - St. Paul MN
International Classification:
F16D 2710
F16D 4120
F16D 4120
US Classification:
192 35
Abstract:
Spring clutch is actuated by magnetic field applied radially between non-rotatable source and rotative clutch hub and spring-contracting ring.