Pavement repair material cart

• US 6,439,806 B1
• Filed: 08/16/2000
• Issued: 08/27/2002
• Est. Priority Date: 08/16/2000
• Status: Expired due to Fees

• Current Assignee: H.D. Industries, Inc.
• Original Assignee: H.D. Industries, Inc.
• Inventors: Dillingham, Harold W.
• Primary Examiner(s): Shackelford, Heather
• Assistant Examiner(s): LEE, JONG SUK
• Application Number:
  US09/640,225
• Time in Patent Office: 741 Days
• Field of Search: 404/87, 404/92, 404/95, 404/107, 404/108, 404/110, 404/111, 126/91.A, 126/373.1, 126/343.5 A, 126/343.5 R, 126/284
• US Class Current: 404/95
• CPC Class Codes: E01C 19/45 Portable apparatus for preparing, or for preparing and applying to the road, compound liquid binders, e.g. emulsified bitumen, fluxed asphalt applying only E01C19/16
• CPC Class Codes: E01C 23/0973 with liquid or semi-liquid materials, e.g. crack sealants

Abstract

A portable cart for transporting and dispensing heated pavement repair materials that is capable of being moved and operated by one person, the cart applying a heated asphaltic/polymeric binder material. The cart comprises a heating chamber having an enclosed interior and providing dry radiant heat and a containment chamber located within the enclosed interior of the heating chamber, the containment chamber narrowing towards an opening. Fuel gas is used to provide dry, radiant heat to the road repair materials to create a fluid material to apply to the surface to repair. The cart further comprises a hand-operated gating means, wherein the material within the containment chamber is gravity-dispensed in a controlled manner. The cart is ideal for repairing cracks and filling expansion channels in concrete and/or asphalt roadways and driveways.

Claims

1. A portable cart for transporting and dispensing heated pavement repair materials that is capable of being moved and operated by one person, the cart applying a heated asphaltic/polymeric binder material, the cart comprising:

a heating chamber having an enclosed interior and a dry, radiant heat source;

a containment chamber located within the enclosed interior of the heating chamber, the containment chamber narrowing towards an opening,

wherein the dry, radiant heat source is a pair of burner-fired retort tubes located in the heating chamber, the retort tubes being generally U-shaped and oriented along a generally-vertical plane, one of the retort tubes being positioned adjacent one of a pair of opposing sides of the containment chamber, the other of the retort tubes being positioned adjacent the other of the pair of opposing sides;

wherein the radiant heat source within the heating chamber heats the material within the containment chamber to between about 150°

C. and 210°

C.; and

wherein the heating chamber having the containment chamber there within is located upon a hand-driven cart.

2. The cart of claim 1, further comprising a hand-operated gating means.

3. The cart of claim 2, wherein the hand operated gating means allows the heated material to flow from the opening when in an engaged position.

4. The cart of claim 1, wherein the material within the containment chamber is gravity-dispensed.

5. The cart of claim 1, wherein a tank of combustible fuel is provided on the cart to supply fuel to the heat source.

6. A portable cart for transporting and dispensing heated pavement repair materials that is capable of being moved and operated by one person, the cart applying a heated asphaltic/polymeric binder material, the cart comprising:

a heating chamber having an enclosed interior and a dry, radiant heat source;

a containment chamber located within the enclosed interior of the heating chamber, the containment chamber having a sloped back face and sloped sides that, in combination, narrow towards an opening controlled by a hand-operated gating means;

wherein the dry, radiant heat source is a pair of burner-fired retort tubes located in the heating chamber, the retort tubes being generally U-shaped and oriented along a generally-vertical plane, one of the retort tubes being positioned adjacent one of a pair of opposing sides of the containment chamber, the other of the retort tubes being positioned adjacent the other of the pair of opposing sides; and

wherein the heating chamber having the containment chamber there within is located upon a hand-driven cart.

7. The cart of claim 6, wherein the radiant heat within the heating chamber heats the material within the containment chamber to between about 150°

C. and 210°

C., thus creating a fluid material that flows by gravity from the opening.

8. The cart of claim 6, wherein the hand operated gating means allows the heated material to flow from the opening when in an engaged position.

9. The cart of claim 6, wherein a tank of combustible fuel is provided on the cart to supply fuel to the heat source.