James O Schefers, 62257 Balsam Dr, Foley, MN 56329
James Schefers Phones & Addresses
257 Balsam Dr, Foley, MN 56329 320-9687302
Oak Park, MN
Osakis, MN
Todd, MN
257 Balsam Dr, Foley, MN 56329 612-9687302
Work
Position:
Food Preparation and Serving Related Occupations
Education
Degree:
Associate degree or higher
Mentions for James O Schefers
Publications & IP owners
Us Patents
Method And Apparatus For Maintaining An Opening In Outdoor Ice
US Patent:
4910906, Mar 27, 1990
Filed:
Jan 30, 1989
Appl. No.:
7/305915
Inventors:
Herbert F. Schefers - Pierz MN
James O. Schefers - Foley MN
James O. Schefers - Foley MN
International Classification:
A01K 0000
US Classification:
43 4
Abstract:
A method and apparatus using a pressurizable bladder for maintaining a hole open in outdoor ice atop a body of water. The apparatus has a top plug with an air tube and valve, an elongate bladder extending down from the plug, and radially spaced apart longitudinal cords in the bladder which constrains elongate growth but enable diameter growth of the bladder. The method has steps of placing the ice plug over a hole, weighing the ice plug, inflating the bladder to a pressure of about 2-3 PSIG, and restraining the ice plug in the hole with a diametrically expanded lower part of the bladder underneath the ice.
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