SONIC METHOD AND APPARATUS FOR LAYING AND REPAIRING ASPHALT MATERIAL

• US 3,577,897 A
• Filed: 11/12/1968
• Issued: 05/11/1971
• Est. Priority Date: 11/12/1968
• Status: Expired due to Term

• Current Assignee: Albert G. Bodine
• Original Assignee: Albert G. Bodine
• Inventors: Bodine, Albert G.
• Application Number:
  US04/774,983
• Time in Patent Office: 910 Days
• US Class Current: 404/92
• CPC Class Codes: E01C 19/38 with means specifically for generating vibrations , e.g. vibrating plate compactors, immersion vibrators E01C19/40, E01C19/41 take precedence

Abstract

Sonic energy is generated by means of a self-contained resonant vibration system which utilizes an orbiting-mass oscillator as the sonic generator. The sonic energy is coupled from the resonant vibration system to a mixture of asphaltic material and gravel on a roadway structure or the like, this roadway material being excited as a resistive load. The resonant vibrational energy thus imparted to the roadway material causes random vibrations of the particles thereof which results in both a uniform mixing and a heating of the materials, as well as liquid migration therein, to provide a uniform asphalt concrete end structure.

Claims

1. A device for use in working asphaltic material and aggregate into an integral mass in forming a roadway or the like comprising:

a resonant vibration system including an elastic bar member and plate means attached to said bar member, an orbiting mass oscillator coupled to said resonant vibration system, means for driving said orbiting-mass oscillator at a frequency such as to cause resonant elastic vibration of said vibration system, a vehicle, said resonant vibration system, said oscillator, and said means for driving said oscillator being supported on said vehicle, and means for selectively lowering said plate means so that it is in intimate contact with the material on said roadway to be worked, or raising said plate means so that it is away from the roadway.

2. The device of claim 1 wherein are included a plurality of bar members, an orbiting-mass oscillator supported on each of said bar members, said plate means comprising a plate member supported on each of said bar members.

3. The device of claim 1 wherein said bar member comprises a longitudinal column, said oscillator being supported on one end of said column, said plate means comprising a flat plate member attached to the other end of said column.