Cutting by use of rotating axially moving tool – Tool or tool with support – With pitch-stabilizing ridge
Patent
1992-01-23
1993-12-21
Arnold, Bruce Y.
Cutting by use of rotating axially moving tool
Tool or tool with support
With pitch-stabilizing ridge
279 75, 408226, 470198, B23B 5100, B23B 522, B23B 546
Patent
active
052716970
ABSTRACT:
The invention provides an improved standardized blank adapted for making taps for making tapped holes and an improved positive lock tap holder. A standardized tap blank is provided which is standardized as to diameter, overall length, and shank length. Such a blank is adapted to manufacture a wide range of taps of varying thread sizes, both U.S. and British standards, and metric standard. For broadening the range of capacities that the blanks are adapted for, a set is provided including two additional standardized blanks, standardized as to a different diameter shank length and overall length. Each standardized blank is provided with a square end, standardized as to the square sides and overall length. The standardized tap blanks are further provided with an annular groove to for holding balls. The annular groove is provided at a precise predetermined distance from the radial shoulders at the inner part of the square end to assure that the axial thrust acting on the tap will be taken by the radial shoulders rather than the balls. The quick release holder is provided with a ball holder which is a positive lock ring which can hold the balls in the annular groove in the tap and release them from it. The lock ring is positively held against rotation. The holder's structure can be built into the driver or tapping attachment itself.
REFERENCES:
patent: 1398156 (1921-11-01), Schroder
patent: 1793259 (1931-02-01), Smeuninx
patent: 2807473 (1957-09-01), Kiehne
patent: 2974965 (1961-03-01), Welles, Jr.
patent: 3589826 (1971-06-01), Fenn
patent: 4209182 (1980-06-01), Sheldon
patent: 4234277 (1980-04-01), Benson et al.
patent: 4290617 (1981-09-01), Yoshida
patent: 4692073 (1987-09-01), Martindell
Brandenberger Peter
Johnson Allan S.
Arnold Bruce Y.
Collins Darryl
Evanns Joseph R.
Tapmatic International Corporation (TIC AG)
LandOfFree
Tap and quick change tap holder assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tap and quick change tap holder assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tap and quick change tap holder assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-305405