Seawater hydraulic rock drill

Details Seawater hydraulic rock drill Seawater hydraulic rock drill

1989-09-11

1991-10-29

Yost, Frank T.

Tool driving or impacting

Impacting devices

Impact transmitting anvil

173134, 91170R, B25D 918

Patent

active

050607340

ABSTRACT:
A seawater hydraulic rock drill having a trigger which when engaged by a diver allows pressurized seawater to be directed through an open supply poppet valve assembly into a drive chamber having a plunger. The pressurized seawater drives the plunger into a piston, an anvil, and a drill bit creating a percussive impact into a rock surface breaking up the rock surface. At the same time pressurized seawater exits the drive chamber through an orifice into a reversible seawater hydraulic motor which rotates the drill bit thereby pulverizing the broken rock. As the plunger approaches the end of a drive cycle, the supply poppet is pressurized closing the supply poppet valve assembly and cutting off the flow of seawater to the drive chamber. Pressurized seawater then drives the piston and plunger to their initial positions, the supply poppet valve assembly opens, and the cycle is repeated.

REFERENCES:
patent: 3232176 (1966-02-01), Henning et al.
patent: 3945442 (1976-03-01), Amtsberg
patent: 4006783 (1977-02-01), Granholm
patent: 4157121 (1979-06-01), Amtsberg et al.
patent: 4376620 (1983-03-01), Colston
patent: 4444274 (1984-04-01), Suwabe
patent: 4593768 (1986-06-01), Eklof
patent: 4648609 (1987-03-01), Deike
patent: 4676323 (1987-06-01), Henriksson

Affiliated with

Also associated with

Rating

Seawater hydraulic rock drill does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Seawater hydraulic rock drill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seawater hydraulic rock drill will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1393595