Boring or penetrating the earth – Boring without earth removal
Patent
1995-09-25
1997-11-18
Taylor, Dennis L.
Boring or penetrating the earth
Boring without earth removal
173 91, 173137, 175 73, 175296, E21B 414, E21B 708, B25D 900
Patent
active
056878036
ABSTRACT:
The invention provides a method for reversing an impact boring tool of the type having a reversing mechanism actuated by rotation of the compressed air supply hose that enters the tool through a rear end opening. This method includes the initial step of connecting the air supply hose to the tool using a quick-release coupling device including tubular male and female members which are coupled together, one of the members being mounted on the end of the air supply hose and the other mounted on an air inlet conduit of the tool, the coupling device further having a locking sleeve and a ball seated in a first pit in one of the members and configured for insertion into a second pit in the other of the members as the locking sleeve moves over the ball, the locking sleeve being biased to a locked position wherein the ball is seated in both pits thereby preventing rotation of one member relative to the other as well as disengagement of one member from the other. The tool is then operated for earth boring, the direction of travel of the tool is then reversed by rotating the air hose, which rotation is transmitted to the air inlet conduit of the tool by the ball of the coupling device.
REFERENCES:
patent: 1637908 (1927-08-01), Lea
patent: 3265408 (1966-08-01), Dickie
patent: 3267963 (1966-08-01), Hupp
patent: 3606394 (1971-09-01), Maurer et al.
patent: 3756328 (1973-09-01), Sudnishnikov et al.
patent: 3964771 (1976-06-01), Baudouin
patent: 3966236 (1976-06-01), Vann
patent: 4014467 (1977-03-01), Ferguson
patent: 4331207 (1982-05-01), Castel
patent: 4543993 (1985-10-01), Calvin et al.
patent: 4618007 (1986-10-01), Kayes
patent: 4662457 (1987-05-01), Bouplon
patent: 4872516 (1989-10-01), MacFarlane et al.
patent: 5025868 (1991-06-01), Wentworth et al.
patent: 5199151 (1993-04-01), Wentworth et al.
patent: 5318135 (1994-06-01), Kayes
patent: 5494116 (1996-02-01), Wentworth
patent: 5505270 (1996-04-01), Wentworth
Perfecting Service Division Catalog --Couplings and Accessories.
Crane Robert
Randa Mark
Wentworth Steven W.
Earth Tool Company L.L.C.
Meyers Philip G.
Taylor Dennis L.
LandOfFree
Method for reversing a ground piercing 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 Method for reversing a ground piercing tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for reversing a ground piercing tool will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1559182