Douglas C Kalvelage
age ~74
from Independence, MO
- Also known as:
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- Douglas Charles Kalvelage
- Doug C Kalvelage
- Douglas E
- Phone and address:
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4317 Huntington Way, Independence, MO 64055
816 309-0377
Douglas Kalvelage Phones & Addresses
- 4317 Huntington Way, Independence, MO 64055 • 816 309-0377
- Greenwood Village, CO
- Brooklyn, NY
- Jackson, MO
- Oakley, UT
- New York, NY
- 4317 S Huntington Way, Independence, MO 64055
Us Patents
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Variable Resistance Tracton Sled For Skaters
view source -
US Patent:20050023779, Feb 3, 2005
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Filed:Jun 24, 2004
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Appl. No.:10/876054
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Inventors:Douglas Kalvelage - Independence MO, US
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International Classification:B62B013/00
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US Classification:280019000, 280001500
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Abstract:A sled type device consisting of a rigid platform supported by a multitude of flexible filaments A, B, C and D. It is pulled by a skater for strengthening purposes. The filaments are attached to the platform in a way that causes downward pressure to vary the number of filaments touching the skating surface. The skater is connected to the sled by a rope and pulley harness that effectively eliminates sideways forces from being transmitted by the skater to the sled.
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