US Patent: 3,270,595
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| Offset Drive Attachment with Reversing Means
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Patentees:
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| Emery L. Hall (exact or similar names) - Hinsdale, IL |
| John A. Blachowski (exact or similar names) - Park Ridge, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 14, 1964 |
| Granted: |
Sep. 06, 1966 |
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Stan Schulz
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Description: |
| Greist, Lockwood, Greenawalt & Dewey - patent attorneys
This invention relates generally to drive attachments of the type which permit running a fastener from a power tool with the latter in offset relation from the fastener, and more particularly to a new and improved drive attachment of the type which permits a fastener to be run in either direction without changing the relationship between the drive attachment and the fastener. It is a primary object of the present invention to provide a new and improved drive attachment which includes unique pawl construction for reversing the direction of rotation of the output member of the attachment and thereby reversing the direction of rotation of the fastener being run. Another object of the present invention is the provision of a new and improved drive attachment which includes a pair of drive pawls and a dual action stop pawl which may be selectively positioned alternately to block one of the drive pawls and cooperate with the other for rotating the output member in one direction and to block the other drive pawl and cooperate with the first mentioned drive pawl for rotating the output member in the other direction. Still another object of the present invention is the provision of a new and improved drive attachment which includes resilient means connected with both drive pawls for urging them in engagement with the toothed member, which resilient means also cooperate with the blocked drive pawl and the stop pawl for rockably urging the latter in engagement with the toothed output member. |
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