Tools – Wrench – screwdriver – or driver therefor – Having work engaging and force exerting portion inserted...
Patent
1993-12-27
1995-04-25
Meislin, D. S.
Tools
Wrench, screwdriver, or driver therefor
Having work engaging and force exerting portion inserted...
81436, B25B 2300
Patent
active
054089050
ABSTRACT:
A driver is designed for coaxial and non-coaxial driving of a fastener with a lobed drive recess. The driver has a part spherical drive head connected by a neck to the drive end of a shank coaxially therewith, the outer surface of the head defining circumferentially alternating lobes and valleys extending longitudinally in planes containing the driver axis. The head is shaped such that its longitudinal cross section in one of the planes through a valley defines a central part-spherical portion and frustoconical end portions substantially tangent to the central portion respectively at its opposite ends. The head is further shaped so that, in its transverse cross section, each of the lobes has a leading flank and a trailing flank shaped and dimensioned that the flanks do not define undercuts which would make molding of the driver difficult.
REFERENCES:
patent: 1924089 (1933-08-01), Croessant
patent: 2750974 (1956-06-01), Hart
patent: 3213719 (1965-10-01), Kloack
patent: 3282145 (1966-11-01), Prescott
patent: 3295572 (1967-01-01), Wing
patent: 3872904 (1975-03-01), Barlow
patent: 4246811 (1981-01-01), Bondhus et al.
patent: 4338835 (1982-07-01), Simons
patent: 4824418 (1989-04-01), Taubert
patent: 5019080 (1991-05-01), Hemer
patent: 5251521 (1993-10-01), Burda et al.
patent: 5291811 (1994-03-01), Goss
Mikic Frank
Thompson Christopher D.
Meislin D. S.
Snap-on Incorporated
LandOfFree
Tiltable ball-type driver does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tiltable ball-type driver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tiltable ball-type driver will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1561096