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Dowell rod inserter

  • US 5,993,108 A
  • Filed: 08/10/1998
  • Issued: 11/30/1999
  • Est. Priority Date: 08/10/1998
  • Status: Expired due to Fees
First Claim
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1. A dowel rod insertion device comprising:

  • a frame adapted to hold a dowel rod and adapted to be coupled to a concrete extrusion machine;

    a plunger assembly slidingly coupled to the frame;

    an air cylinder assembly coupled to the frame comprising;

    a collar having a plurality of apertures; and

    an air cylinder having a piston wherein the piston extends through one of the collar apertures and couples to the sliding plunger assembly; and

    a pneumatic plumbing assembly coupled to the air cylinder assembly comprising;

    a compressed air source;

    an actuator switch; and

    hoses operationally coupling the compressed air source to the actuator switch and the actuator switch to the air cylinders;

    wherein actuation of the air cylinders causes the pistons to pull the plunger into the rod, thereby pushing the rod into the extruded concrete.

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