Cutting by use of rotating axially moving tool – With means to apply transient – fluent medium to work or product
Reexamination Certificate
2011-03-29
2011-03-29
Howell, Daniel W (Department: 3726)
Cutting by use of rotating axially moving tool
With means to apply transient, fluent medium to work or product
C408S061000, C408S124000
Reexamination Certificate
active
07914241
ABSTRACT:
A tapping tool having a guide body, a driver for longitudinal movement of a tap within the guide body, and a pump for lubricating the tap. A keyway in the outer body of guide body mates with an indexing key in a rotatable indexing holder of a turret press, which causes the guide body to rotate in sync with the turret press. A driver cylinder is centrally disposed in the guide body. The driver is adapted for sliding, mating engagement within the driver cylinder. A chamber in the lubrication pump holds the lubrication which is ejected by the pump onto the tap. Lubrication is ejected onto the tap through a normally closed ejector inlet that is opened by downward movement of a plunge pin against the lubrication in the chamber. The ejector is sized to restrict the flow of lubrication from the ejector outlet, which creates back pressure in the lubrication chamber. The back pressure forces a ball to close the lubrication conduit when the plunge pin moves downward.
REFERENCES:
patent: 1195145 (1916-08-01), Mattingly
patent: 2084022 (1937-06-01), Frank
patent: 2253349 (1941-07-01), Berquist
patent: 2429741 (1947-10-01), Barfels
patent: 2501738 (1950-03-01), Prutton
patent: 2686440 (1954-08-01), Van Cutsem
patent: 2715233 (1955-08-01), Clark
patent: 2749561 (1956-06-01), Rush
patent: 2922323 (1960-01-01), Weidner
patent: 3564944 (1971-02-01), Hill et al.
patent: 4449868 (1984-05-01), Steinsberger et al.
patent: 5016335 (1991-05-01), Becker et al.
patent: 5890848 (1999-04-01), Kachich
patent: 2005/0271485 (2005-12-01), Kouno et al.
patent: 2006/0127191 (2006-06-01), Chun et al.
Ferry Gregory S.
Thomson Steven H.
Dorsey & Whitney LLP
Hemphill, Esq. Stuart R.
Howell Daniel W
Klein, Esq. Brett A.
Mate Precision Tooling Inc.
LandOfFree
Tapping tool does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tapping tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tapping tool will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2680393