Tools – Wrench – screwdriver – or driver therefor – Rigid jaws
Patent
1997-10-28
1999-05-18
Smith, James G.
Tools
Wrench, screwdriver, or driver therefor
Rigid jaws
81119, 81186, 81 532, B25B13/06
Patent
active
059040769
ABSTRACT:
A device is disclosed for removing a nut frozen is place regardless of the degree to which the corners of the nut have been rounded by a prior attempt to remove such nut by an ordinary wrench. The device is formed with an opening, which is sized to receive the nut and formed with a plurality of teeth preferably arranged such that a leading or cutting edge of each tooth engages approximately with a midpoint of a flat of the nut. The front and rear faces of each tooth form an angle of less than 90.degree. and a gullet between teeth, which is defined by a rear face of one tooth and a front face of a next adjacent tooth, is sized to freely receive the corner(s) between the flats with which the leading edges of an adjacent pair of teeth engage. The gullet is shaped and sized to permit the formation of a chip upon penetration of a leading edge into a flat of a nut, which is operable to lock the nut for rotation with the device.
REFERENCES:
patent: 574622 (1897-01-01), Olden
patent: 996841 (1911-07-01), Dixon
patent: 1954141 (1934-04-01), Miquelon
patent: 2334069 (1943-11-01), Collins et al.
patent: 2671368 (1954-03-01), Diebold
patent: 3252359 (1966-05-01), Bodkin
patent: 3280671 (1966-10-01), Woodling
patent: 3602073 (1971-08-01), Siwersson et al.
patent: 3757614 (1973-09-01), Evans et al.
patent: 3785226 (1974-01-01), Ward
patent: 3881377 (1975-05-01), Evans et al.
patent: 3885480 (1975-05-01), Muenchinger
patent: 3903764 (1975-09-01), Andersen
patent: 4167882 (1979-09-01), Siwersson
patent: 4440047 (1984-04-01), Robbins
patent: 4607547 (1986-08-01), Martus
patent: 5148726 (1992-09-01), Huebschen et al.
patent: 5219392 (1993-06-01), Ruzicka et al.
LandOfFree
Nut removal device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Nut removal device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nut removal device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1752883