Lubrication system for pneumatic device

Claim 2

Pneumatic apparatus comprising: means providing a chamber having opening means for passing air; a source of air under pressure, and a first conduit connecting said source to the opening means for passing air into the chamber; exhaust means and a second conduit connecting the exhaust means to the opening means for passing air from the chamber; reclassifier means connected to the second conduit for removing oil from air being passed therethrough from the chamber and for returning such oil to the souRce of lubricating oil; power means disposed in the chamber so as to be biased toward lubricated motion in a first direction as air is being received into the chamber from the first conduit, and to be biased in the opposite direction as air is being removed from the chamber through the second conduit; and a third conduit connected to the chamber on the opposite of the power means as the first conduit, the third conduit being connected to the source of air under pressure for biasing the power means in said opposite direction.

Claim 3

Pneumatic apparatus as defined in claim 1, including valve means connected to said first and third conduits, the valve means being movable toward either a first position or a second position, and wherein the power means is biased either toward said first direction or toward said second direction depending upon the position of the valve means.

Claim 4

Pneumatic means as defined in claim 1, including a first valve connected in the first conduit for blocking air flow therethrough at such times as air is being removed from the chamber through the second conduit.

Claim 5

Pneumatic means as defined in claim 1, including a valve connected in the second conduit for blocking air flow therethrough as air is being received into the chamber from the first conduit.

Claim 6

Pneumatic apparatus comprising: means providing a chamber having opening means for passing air; a power member movably mounted in the chamber; a source of air under pressure, and a first conduit connecting said source to the opening means for passing air into the chamber to bias the power member in a first direction; a source of lubricating oil connected to the first conduit for passing oil therethrough to the chamber as air is being received therein, and a valve connected in the first conduit between the source of lubricating oil and the chamber to prevent oil from returning from the chamber through the first conduit; a second conduit connected to the chamber for removing air and oil from the chamber received through the first conduit; reclassifier means connected to the second conduit for removing oil from air passing through the second conduit, and for returning such oil to the source of lubricating oil; a valve connected in the second conduit for preventing air from passing through the second conduit toward said chamber; a third conduit connecting the source of air to the chamber for biasing the power member in a second direction; exhaust means; and valve means having a first position and a second position, the valve means being operative in the first position for connecting the first conduit to the source of air and the third conduit to the exhaust means, and in the second position for connecting the first and second conduits to the exhaust means and the third conduit to the source of air whereby the power member is moved in lubricated reciprocating motion as the valve means is moved between said first position and said second position.

Claim 7

Pneumatic apparatus comprising: means providing a chamber having opening means for passing air; a power member movably mounted in the chamber; a source of air under pressure, and a first conduit connecting said source to the opening means for passing air into the chamber to bias the power member in a first direction; a source of lubricating oil connected to the first conduit for passing oil therethrough to the chamber as air is being received therein, and a valve connected in the first conduit between the source of lubricating oil and the chamber to prevent oil from returning from the chamber through the first conduit; a second conduit connected to the chamber for removing air and oil from the chamber received through the first conduit; reclassifier means connected to the second conduit for removing oil from air passing through the second conduit, and for returning such oil to the source of lubricating oil; a valve connected in the second conduit for preventing air from passing through the second conduit toward said chamber; a third conduit connecting the source of air to the chamber for biasing the power member in a second direction; exhaust means; and valve means having a first position and a second position, the valve means being operative in the first position for connecting the first conduit to the source of air and the third conduit to the exhaust means, and in the second position for connecting the first and second conduits to the exhaust means and the third conduit to the source of air whereby the power member is moved in lubricated reciprocating motion as the valve means is moved between said first position and said second position.

Claim 8

Pneumatic apparatus comprising: means providing a chamber having opening means for passing air; a power means movably disposed in the chamber; a source of air under pressure; a first conduit connecting the source of air to the opening means for passing air into the chamber to bias the power means towards motion in a first direction; a source of lubricating oil connected to the first conduit for introducing oil into the air being received in the chamber; a valve means; a second conduit connecting the exhaust means to the opening means for passing air from the chamber; reclassifier means connected to the second conduit for removing oil from air being passed therethrough from the chamber and for returning such oil to the source of lubricating oil; and means attached to said apparatus for biasing the power means towards motion in a second direction opposite said first direction thus to allow the power means to be biased toward motion in the first direction As air is being received into the chamber from the first conduit and to be biased in the opposite direction as air is exiting the chamber through the second conduit.

Claim 9

Pneumatic apparatus comprising: means providing a chamber having opening means for passing air; a power means movably disposed in the chamber; a source of air under pressure; a first conduit connecting the source of air to the opening means for passing air into the chamber to bias the power means towards motion in a first direction; a source of lubricating oil connected to the first conduit for introducing oil into the air being received in the chamber; a valve means; a second conduit connecting the exhaust means to the opening means for passing air from the chamber; reclassifier means connected to the second conduit for removing oil from air being passed therethrough from the chamber and for returning such oil to the source of lubricating oil; and means attached to said apparatus for biasing the power means towards motion in a second direction opposite said first direction thus to allow the power means to be biased toward motion in the first direction As air is being received into the chamber from the first conduit and to be biased in the opposite direction as air is exiting the chamber through the second conduit.

Claim 10

A pneumatic apparatus as defined in claim 6, wherein said means for biasing the power means toward motion in said second direction comprises a third conduit connected to the chamber on the side of the power means opposite the first conduit, said third conduit being connected to the source of air under pressure for biasing the power means in the second direction.

Claim 11

A pneumatic apparatus as defined in claim 7 and including valve means for opening said third conduit to said exhaust means, and said exhaust means including a filter and a silencer.

Claim 12

A pneumatic apparatus as defined in claim 7, and in which said third conduit is connected with said classifier means.

Claim 13

A pneumatic apparatus as defined in claim 6 and in which said second conduit is connected to said first conduit upstream of said source of lubricating oil.

Claim 14

A pneumatic apparatus as defined in claim 6 and including a second reclassifier means connected in series by said second conduit with said first mentioned classifier means.