Refuse compacting device

Claim 2

A waste compacting device including: a main compaction ram slidably mounted in a housing for reciprocating movement through a compaction chamber in the housing and having a compaction head for compacting waste material in the compaction chamber; an auxiliary ram concentrically mounted in the main compaction ram and slidably movable in a reciprocating manner from a position inside the main compaction ram to a position ahead of the main compaction ram head; fluid actuated power means to drive the auxiliary ram forward and rearward through the compaction chamber; and means to engage the main compaction ram by the auxiliary ram after the auxiliary ram has moved to a position forward of the head of the main compaction ram when the auxiliary ram is moving in the forward direction and after the auxiliary ram has moved to a position inside the main ram when the auxiliary is moving in the rearward direction to thereby move the main compaction ram forward and rearward through the compaction chamber.

Claim 3

A waste compacting device including: a main compaction ram slidably mounted in a housing for reciprocating movement through a compaction chamber in the housing and having a compaction head for compacting waste material in the compaction chamber; an auxiliary ram concentrically mounted in the main compaction ram and slidably movable in a reciprocating manner from a position inside the main compaction ram to a position ahead of the main compaction ram head; fluid actuated power means to drive the auxiliary ram forward and rearward through the compaction chamber; and means to engage the main compaction ram by the auxiliary ram after the auxiliary ram has moved to a position forward of the head of the main compaction ram when the auxiliary ram is moving in the forward direction and after the auxiliary ram has moved to a position inside the main ram when the auxiliary is moving in the rearward direction to thereby move the main compaction ram forward and rearward through the compaction chamber.

Claim 4

A waste compacting device including: a main compaction ram slidably mounted in a housing for reciprocating movement through a compaction chamber in the housing and having a compaction head for compacting waste material in the compaction chamber; an auxiliary ram concentrically mounted in the main compaction ram and slidably movable in a reciprocating manner from a position inside the main compaction ram to a position ahead of the main compaction ram head; fluid actuated power means to drive the auxiliary ram forward and rearward through the compaction chamber; and means to engage the main compaction ram by the auxiliary ram after the auxiliary ram has moved to a position forward of the head of the main compaction ram when the auxiliary ram is moving in the forward direction and after the auxiliary ram has moved to a position inside the main ram when the auxiliary is moving in the rearward direction to thereby move the main compaction ram forward and rearward through the compaction chamber.

Claim 5

A waste compacting apparatus including: a compaction chamber capable of receiving waste material to be compacted and having a funnel shaped discharge opening in one end; a main compaction ram, having a compaction head slidably mounted for reciprocating movement through the compaction chamber towards and away from the funnel shaped discharge opening; an auxiliary ram slidably mounted in the center of the main ram and extending through the main compaction head for movement relative to the main ram; a cylinder having a fluid driven piston connected to the auxiliary ram; means to supply fluid under pressure to the cylinder to drive the piston in both a forward and rearward direction to thereby drive the auxiliary ram in a reciprocating movement; and means on the auxiliary ram to engage the main ram compaction head to couple the auxiliary ram to the main ram during forward travel of the auxiliary ram and stop means on the main ram positioned to be engaged by the auxiliary ram during its return movement thereby causing the main ram to be returned with the auxiliary ram, said means on the auxiliary ram being positioned so that the auxiliary ram moves relative to the main ram prior to engaging the main ram compaction head.

Claim 6

A waste compacting apparatus including: a compaction chamber capable of receiving waste material to be compacted and having a funnel shaped discharge opening in one end; a main compaction ram, having a compaction head slidably mounted for reciprocating movement through the compaction chamber towards and away from the funnel shaped discharge opening; an auxiliary ram slidably mounted in the center of the main ram and extending through the main compaction head for movement relative to the main ram; a cylinder having a fluid driven piston connected to the auxiliary ram; means to supply fluid under pressure to the cylinder to drive the piston in both a forward and rearward direction to thereby drive the auxiliary ram in a reciprocating movement; and means on the auxiliary ram to engage the main ram compaction head to couple the auxiliary ram to the main ram during forward travel of the auxiliary ram and stop means on the main ram positioned to be engaged by the auxiliary ram during its return movement thereby causing the main ram to be returned with the auxiliary ram, said means on the auxiliary ram being positioned so that the auxiliary ram moves relative to the main ram prior to engaging the main ram compaction head.

Claim 7

The apparatus of claim 2 wherein the engaging means on the auxiliary ram comprises: a stop member secured to the body of the auxiliary ram between the stop means and the compaction head on the main ram; and the distance between the stop means of the main ram and the main ram compaction head being sufficient to allow the auxiliary ram to extend forward of the main ram when the auxiliary ram is driven in the forward direction, and for the auxiliary ram when the auxiliary ram is driven in the rearward direction.

Claim 8

The apparatus of claim 3 further including: a control system to terminate forward movement of the auxiliary ram when the main ram has traversed the compaction chamber; and means to reverse the direction of movement of the auxiliary ram on occurrence of a predetermined pressure build-up ahead of the main ram.

Claim 9

In a waste compacting device of the type wherein a compaction chamber is positioned in a housing to receive waste from supply hopper for compaction by forcing through a funnel shaped outlet in the compaction chamber and a main compacting ram is mounted in the housing for reciprocating motion through the compaction chamber to force waste material through the funnel shaped outlet, an auxiliary ram is concentrically mounted in the center of the main ram for reciprocating movement relative to the main ram and to the compaction chamber, the improvement comprising: a hydraulic cylinder connected to the auxiliary ram to drive the auxiliary ram forward into the compaction chamber; engaging means, on the auxiliary ram, to engage the main ram in driving relationship with the auxiliary ram; the engaging means being positioned on the auxiliary ram so that the auxiliary ram travels forward into the compaction chamber prior to engaging the main ram and so that the continued movement of the auxiliary ram will carry the main ram through the compaction chamber; means to reverse the movement of the auxiliary ram when the main ram has completed its forward movement; and means mounted on the main ram to contact the engaging means on the auxiliary ram when the auxiliary ram is moving in the reverse direction to return the main ram back through the compaction chamber.

Claim 10

In a waste compacting device of the type wherein a compaction chamber is positioned in a housing to receive waste from supply hopper for compaction by forcing through a funnel shaped outlet in the compaction chamber and a main compacting ram is mounted in the housing for reciprocating motion through the compaction chamber to force waste material through the funnel shaped outlet, an auxiliary ram is concentrically mounted in the center of the main ram for reciprocating movement relative to the main ram and to the compaction chamber, the improvement comprising: a hydraulic cylinder connected to the auxiliary ram to drive the auxiliary ram forward into the compaction chamber; engaging means, on the auxiliary ram, to engage the main ram in driving relationship with the auxiliary ram; the engaging means being positioned on the auxiliary ram so that the auxiliary ram travels forward into the compaction chamber prior to engaging the main ram and so that the continued movement of the auxiliary ram will carry the main ram through the compaction chamber; means to reverse the movement of the auxiliary ram when the main ram has completed its forward movement; and means mounted on the main ram to contact the engaging means on the auxiliary ram when the auxiliary ram is moving in the reverse direction to return the main ram back through the compaction chamber.