Yieldable prop

A yieldable prop having a first end and a second end comprising:

• a first hollow conduit having a first end;
• a second conduit slidably received in the first end of the first hollow conduit;
• a clamp assembly positioned adjacent to the first hollow conduit and the second conduit, wherein the clamp assembly comprises:
• a housing positioned adjacent to the first end of the first conduit;
• and
• a wedge positioned between the housing and an external surface of the second conduit, with the inner surface of the wedge in facing relationship to the external surface of the second conduit and the outer surface of the wedge in facing relationship with the inner surface of the housing, the clamp assembly preventing the second conduit from further entering the first conduit;
• a ring slidably received around the second conduit and spaced from the clamp assembly;
• and
• at least one handle connected to the ring and the first hollow conduit, with the clamp assembly between the ring and the connection of the at least one handle and the first hollow conduit.

A yieldable prop having a first end and a second end comprising:

• a first hollow conduit;
• a second conduit slidably received in the first hollow conduit;
• a clamp assembly positioned adjacent to the first hollow conduit and the second conduit, wherein the clamp assembly comprises:
• a bolt and a nut,
• a housing having a generally C-shape with opposed ends, the housing positioned adjacent one end of the first conduit,
• parallel legs extend from the opposed ends,
• each parallel leg comprises a bolt opening configured to receive the bolt therethrough, and
• the nut received on the bolt;
• a wedge positioned on an external surface of the second conduit and configured to engage the housing to prevent the second conduit from further entering the first conduit;
• a ring slidably received around the second conduit;
• and
• at least one handle connected to the ring and the first hollow conduit.

A yieldable prop having a first end and a second end comprising:

• a first hollow conduit;
• a second conduit slidably received in the first hollow conduit;
• a clamp assembly positioned adjacent to the first hollow conduit and the second conduit, wherein the clamp assembly comprises:
• a housing positioned adjacent to one end of the first conduit between the first and second ends of the prop, the housing comprises a third conduit having a first end and a second end with a passageway extending through the third conduit, a first portion of the passageway adjacent the first end of the third conduit having a constant diameter for a predetermined distance, the diameter of the first portion of the passageway is greater than outside diameter of the second conduit and smaller than outside diameter of the first conduit, and a second portion of the passageway adjacent the second end of the third conduit having a decreasing diameter as the distance from the second end of third conduit increases with the smallest diameter of the second portion of the passageway greater than outside diameter of the second conduit and smaller than outside diameter of the first conduit, the third conduit mounted on the second conduit with the first portion of the passageway adjacent to the one end of the first conduit and the second portion of the passageway of the third conduit facing away from the one end of the first conduit;
• and
• a wedge positioned on an external surface of the second conduit and configured to engage the housing to prevent the second conduit from further entering the first conduit, the wedge has a first end and an opposite second end with outside diameter of the wedge increasing as the distance from the first end toward the second end of the wedge increases, the first end of the wedge slidably received in the second portion of the passageway of the third conduit, wherein as the wedge moves into the third conduit the wedge engages the external surface of the second conduit and the outer surface of the wedge engages the second portion of the passageway to prevent the second conduit from further entering the first conduit;
• a ring slidably received around the second conduit;
• and
• at least one handle connected to the ring and the first hollow conduit, wherein first end portion of the handle is connected to the ring and opposite second end portion of the handle is connected to the first conduit with the clamp assembly between the first and second end portions of the handle, and further comprising a ring tie removably positioned between the ring and the wedge of the clamp assembly.

A yieldable prop having a first end and a second end comprising:

• a first hollow conduit having a first end;
• a second conduit slidably received in the first hollow conduit;
• a clamp assembly positioned adjacent to the first hollow conduit and the second conduit, wherein the clamp assembly comprises:
• a housing positioned adjacent to the first end of the first conduit, wherein the housing has a first end portion and an opposite second end portion with the first end portion mounted on external surface of the first conduit and the second end portion of the housing extending over and spaced from the external surface of the second conduit;
• a wedge positioned on an external surface of the second conduit between the second end of the housing and the external surface of the second conduit and configured to engage the housing to prevent the second conduit from further entering the first conduit, wherein the wedge comprises two arcuate wedge assemblies;
• a ring slidably received around the second conduit and spaced from the clamp assembly;
• and
• at least one handle connected to the ring and the first hollow conduit, wherein first end portion of the handle is secured to the ring and opposite second end portion of the handle is secured to the first conduit with the clamp assembly between the first and second end portions of the handle, and further comprising a ring tie removably positioned between the ring and the wedge of the clamp assembly.