Pressure oiling system and oiling valve assembly

Claim 2

An oiling valve for a compressed air line comprising an upright hollow cylinder having a lower end provided with an air inlet opening, an upper end provided with an oil inlet opening and a side wall having an air outlet port disposed spacedly between said upper and lower ends, a piston having a loose fit in said cylinder, means forming an oil pressure chamber opening into said cylinder through said oil inlet opening, a check valve comprising a movable valve member for closing the opening from said oil pressure chamber into said cylinder, and a pin engagable between said valve member and said piston upon lifting of said piston away from said lower end in response to compressed air flow from said air inlet opening to said outlet port.

Claim 3

An oiling valve in accord with claim 1 wherein said pin is of less length than the distance between said piston and valve member when said piston is at said lower end, and wherein said piston is a heavy inertial piston operative to deliver a hammer blow to said valve member upon such lifting thereof.

Claim 4

The combination according to claim 2 wherein said check valve includes a circular seat for said valve member and the diameters of said piston and cylinder are from about three to eight times as great as the diameter of said seat.

Claim 5

The combination according to claim 1 wherein said check valve includes a circular seat for said valve member and the diameters of said piston and cylinder are from about three to eight times as great as the diameter of said seat.

Claim 6

An oiling valve assembly comprising a metering valve adapted to be connected to a cyclically varying high pressure oiling system, a passageway connected to said metering valve for receiving metered quantities of oil therethrough from such system, said passageway having an open lower end comprising a check valve including a valve seat and a ball member engagable downwardly on said seat to close said check valve and raisable to open said check valve, an upright cylindrical air chamber below said check valve connected to said passageway through said check valve, said chamber having a lower end wall provided with a compressed air inlet opening adapted to be connected to a compressed air supply and a side wall provided with an air outlet port spacedly above said lower end wall adapted to be connected to air-operated apparatus, a heavy piston movably fitted in said chamber for falling freely to said lower end under the force of gravity in the absence of air flow through said chamber from said inlet opening to said port and raisable to uncover said port below said piston in response to such flow of air in response to demand of compressed air by such equipment, and a pin extending upwardly from said piston having an upper end spaced below said ball member when said piston is engaged with said lower end wall and liftingly engagable with said ball to open said check valve when said piston is so raised to uncover said port.

Claim 7

An oiling valve assembly comprising a metering valve adapted to be connected to a cyclically varying high pressure oiling system, a passageway connected to said metering valve for receiving metered quantities of oil therethrough from such system, said passageway having an open lower end comprising a check valve including a valve seat and a ball member engagable downwardly on said seat to close said check valve and raisable to open said check valve, an upright cylindrical air chamber below said check valve connected to said passageway through said check valve, said chamber having a lower end wall provided with a compressed air inlet opening adapted to be connected to a compressed air supply and a side wall provided with an air outlet port spacedly above said lower end wall adapted to be connected to air-operated apparatus, a heavy piston movably fitted in said chamber for falling freely to said lower end under the force of gravity in the absence of air flow through said chamber from said inlet opening to said port and raisable to uncover said port below said piston in response to such flow of air in response to demand of compressed air by such equipment, and a pin extending upwardly from said piston having an upper end spaced below said ball member when said piston is engaged with said lower end wall and liftingly engagable with said ball to open said check valve when said piston is so raised to uncover said port.

Claim 8

In a compressed air system including a source of lubricating oil under pressure, a source of compressed air and a line for supplying compressed air to air-operated equipment, an oiling valve assembly for injecting lubricating oil into such line for lubricating such equipment comprising an upright cylinder having upper and lower end walls and a side wall, a compressed air inlet opening in said lower end wall connected to said compressed air source, a check valve including a valve seat in said upper end wall and a valve member for closing downwardly against said seat, a connection to said oil source for supplying oil under pressure downwardly against said valve member urging said member into closed position, an air outlet port in said side wall spaced from said upper and lower walls connected to said line, a piston having a loose fit in said cylinder and having a lower end surface movable toward and away from said lower end wall, said lower end surface and said lower end wall being of non-conforming shape whereby said piston is inoperative to seal off said opening, a check valve actuating element in said cylinder between said piston and said valve member adapted and arranged to lift said valve member from its said seat upon substantial upward movement of said piston from said lower end wall but having a length insufficient to engage between said piston and said member until said piston is substantially elevated above said lower end wall, said piston being movable by the flow of air upwardly in said cylinder to at least partially expose said port below its said lower end surface and being sufficiently heavy when so moved to apply a hammer blow through said element to said valve member.

Claim 9

In a compressed air system including a source of lubricating oil under pressure, a source of compressed air and a line for supplying compressed air to air-operated equipment, an oiling valve assembly for injecting lubricating oil into such line for lubricating such equipment comprising an upright cylinder having upper and lower end walls and a side wall, a compressed air inlet opening in said lower end wall connected to said compressed air source, a check valve including a valve seat in said upper end wall and a valve member for closing downwardly against said seat, a connection to said oil source for supplying oil under pressure downwardly against said valve member urging said member into closed position, an air outlet port in said side wall spaced from said upper and lower walls connected to said line, a piston having a loose fit in said cylinder and having a lower end surface movable toward and away from said lower end wall, said lower end surface and said lower end wall being of non-conforming shape whereby said piston is inoperative to seal off said opening, a check valve actuating element in said cylinder between said piston and said valve member adapted and arranged to lift said valve member from its said seat upon substantial upward movement of said piston from said lower end wall but having a length insufficient to engage between said piston and said member until said piston is substantially elevated above said lower end wall, said piston being movable by the flow of air upwardly in said cylinder to at least partially expose said port below its said lower end surface and being sufficiently heavy when so moved to apply a hammer blow through said element to said valve member.