Abstract

The present invention provides an accumulator (20) comprising a housing (21), an inner portion (23) within the housing, and a zone (27) defined between the housing and the inner portion for fluid communication with a driving fluid of a fluid-powered system whereby the inner portion is exposed to the driving fluid received within the zone. The inner portion comprises a resiliently deformable solid mass (31), wherein at least a portion of the mass is deformable in response to fluid pressure in the zone exceeding a prescribed level thereby to provide pressure relief. The deformable portion resiliently rebounds in response to fluid pressure in the zone returning to or falling below the prescribed level.

IPC Classes  ?

• F15B 1/04 - Accumulators
• F15B 1/02 - Installations or systems with accumulators

Abstract

The present invention provides an accumulator (20) comprising a housing (21), an inner portion (23) within the housing, and a zone (27) defined between the housing and the inner portion for fluid communication with a driving fluid of a fluid-powered system whereby the inner portion is exposed to the driving fluid received within the zone. The inner portion comprises a resiliently deformable solid mass (31), wherein at least a portion of the mass is deformable in response to fluid pressure in the zone exceeding a prescribed level thereby to provide pressure relief. The deformable portion resiliently rebounds in response to fluid pressure in the zone returning to or falling below the prescribed level.

IPC Classes  ?

• F15B 1/04 - Accumulators
• F16L 55/05 - Buffers therefor
• F17D 1/20 - Arrangements or systems of devices for influencing or altering dynamic characteristics of the systems, e.g. for damping pulsations caused by opening or closing of valves

Abstract

The present invention provides a drill assembly that includes a drill for drilling rock, a support for supporting the drill, and a valve for releasably securing the support and drill together. The valve is adapted to receive a fluid from a pump means and controllably provide the drill and the support with the fluid for operation of the drill and the support.

IPC Classes  ?

• E21B 19/087 - Apparatus for feeding the rods or cablesApparatus for increasing or decreasing the pressure on the drilling toolApparatus for counterbalancing the weight of the rods by means of a swinging arm
• E21B 7/02 - Drilling rigs characterised by means for land transport, e.g. skid mounting or wheel mounting
• B23B 45/00 - Hand-held or like portable drilling machines, e.g. drill gunsEquipment therefor
• B25D 17/28 - SupportsDevices for holding power-driven percussive tools in working position
• F16K 11/22 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
• E21B 19/086 - Apparatus for feeding the rods or cablesApparatus for increasing or decreasing the pressure on the drilling toolApparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder

Abstract

The present invention provides a drill assembly (11) comprising a drill (13) for drilling rock, a support (15) for supporting the drill, and a valve (17) for releasably securing the support and drill together. The valve is adapted to receive a fluid from a pump means (19) and controllably provide the drill and the support with the fluid for operation of the drill and the support.

IPC Classes  ?

• E21B 19/086 - Apparatus for feeding the rods or cablesApparatus for increasing or decreasing the pressure on the drilling toolApparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder
• B25D 17/28 - SupportsDevices for holding power-driven percussive tools in working position
• B25D 9/12 - Means for driving the impulse member comprising a built-in liquid motor
• E21B 7/02 - Drilling rigs characterised by means for land transport, e.g. skid mounting or wheel mounting
• F16K 11/00 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid
• E21B 17/02 - CouplingsJoints

Abstract

The present invention provides a drill assembly (11) comprising a drill (13)
for
drilling rock, a support (15) for supporting the drill, and a valve (17) for
releasably securing the support and drill together. The valve is adapted to
receive a fluid from a pump means (19) and controllably provide the drill and
the support with the fluid for operation of the drill and the support

IPC Classes  ?

• E21B 19/086 - Apparatus for feeding the rods or cablesApparatus for increasing or decreasing the pressure on the drilling toolApparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder

Abstract

The present invention provides an accumulator (20) comprising a housing (21), an inner portion (23) within the housing, and a zone (27) defined between the housing and the inner portion for fluid communication with a driving fluid of a fluid-powered system whereby the inner portion is exposed to the driving fluid received within the zone. The inner portion comprises a resiliently deformable solid mass (31), wherein at least a portion of the mass is deformable in response to fluid pressure in the zone exceeding a prescribed level thereby to provide pressure relief. The deformable portion resiliently rebounds in response to fluid pressure in the zone returning to or falling below the prescribed level.

IPC Classes  ?

• F15B 1/04 - Accumulators
• F16L 55/05 - Buffers therefor
• F17D 1/20 - Arrangements or systems of devices for influencing or altering dynamic characteristics of the systems, e.g. for damping pulsations caused by opening or closing of valves