US Patent: 5,369,863
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| Bicycle Crank Arm Puller
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Patentees:
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| Mark J. Hasenberg (exact or similar names) - Kenosha, WI |
| Steven R. Wente (exact or similar names) - Kenosha, WI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 15, 1993 |
| Granted: |
Dec. 06, 1994 |
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Stan Schulz
Snap-On Tools Company History
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Description: |
| Emrich & Dithmar - patent attorneys
Abstract
A bicycle crank arm puller includes a tubular insert externally threaded for threaded engagement in an internally threaded portion of a bore in a crank arm, the other portion of the bore receiving an axle end in press-fitted engagement. The insert has an enlarged, radially outwardly extending, trilobular handle. A drive screw is threadedly engaged through the tubular insert and has a part-spherical bearing end engageable with the axle end. A square drive socket on the outer end of the drive screw receives the drive lug of an associated lever member.
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