Device in a thread-forming tool

Details Device in a thread-forming tool Device in a thread-forming tool

2011-05-31

2011-05-31

Tolan, Edward (Department: 3725)

Threaded, headed fastener, or washer making: process and apparat

Implement, e.g., die, etc.

Tap

C470S096000, C408S130000

Reexamination Certificate

active

07951010

ABSTRACT:
The invention relates to a device (101) to provide helical rotating projection of a thread-forming thread core (102).According to the invention, internally in a cylindrical space (103) of a fluid cylinder-piston device (104), there is arranged a movably actuatable piston (105) provided with a number of helical holes (106). In that connection, a helical (109) shaft (108) shape-adapted to the respective hole (106) and helix (107) is receivable in said respective helical hole (106), and that the respective shaft (108) is, via a gear (110), connected with a mechanism (111) for the transmission of rotating (112) as well as axial (113) displacement motion to said thread-formed thread core (102). Finally, a stop member (114), which is arranged to limit the displacement motion (115) of the piston, is arranged internally in the cylinder space (103) of said piston cylinder.

REFERENCES:
patent: 4273481 (1981-06-01), Corley et al.
patent: 4350212 (1982-09-01), Hirose
patent: 4553883 (1985-11-01), Brooks
patent: 4761100 (1988-08-01), Maillard
patent: 5348429 (1994-09-01), Pfister
patent: 5927910 (1999-07-01), Fix, Jr.
patent: 6257809 (2001-07-01), Silken

Affiliated with

Also associated with

Rating

Device in a thread-forming 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 Device in a thread-forming tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device in a thread-forming tool will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2655954