Drag box apparatus

• US 10,662,593 B1
• Filed: 01/07/2019
• Issued: 05/26/2020
• Est. Priority Date: 01/07/2019
• Status: Active Grant

• Current Assignee: Keith E. Smith
• Original Assignee: Keith E. Smith
• Inventors: Smith, Keith E
• Primary Examiner(s): Risic, Abigail A
• Application Number:
  US16/240,986
• Time in Patent Office: 505 Days
• CPC Class Codes: B28D 7/02 for removing or laying dust, e.g. by spraying liquids; for cooling work
• CPC Class Codes: E01C 11/005 Methods or materials for repairing pavings E01C7/35 takes precedence; for concrete coverings E01C7/147; for bituminous coverings E01C7/187; devices for repair works E01C23/06; repairing bridge floorings E01D22/00
• CPC Class Codes: E01C 23/082 using non-powered tools
• CPC Class Codes: E01C 2301/50 Methods or devices for preventing dust by spraying or sucking

Abstract

A drag box or box scraper for scraping and moving loose materials on a surface uses a three point hitch having a pivotally mounted blade box holding a scraping blade attached thereto to allow the scraping blade to pivot to ride over rigid objects, such as man hole covers during road preparations. Attached water tanks add weight to the drag box and feeds a water sprayer used for dust suppression.

Claims

1. A drag box apparatus comprising:

a blade box frame having a pair of side frame members each having a skid removably attached thereto for said blade box frame to slide on, said blade box frame having a blade attached between said side frame members and said blade box frame having a pair of cushion support members;

a three point hitch frame having a three point hitch for attaching said three point hitch frame to a vehicle, said three point hitch frame having a pair of cushion support bars each having a resilient cushion mounted thereon and pivotally attached at a pivot point with a pivot pin to said pair of box blade cushion support members and aligned for resting on each said resilient cushion to support pivotal movement of said blade box on said three point hitch frame allowing the tilting of said blade box frame blade when said blade encounters an obstacle; and

whereby said drag box has a blade box frame and blade that can move relative to said three point hinge to tilt said blade box frame and blade when said blade encounters an obstacle.

2. The drag box apparatus in accordance with claim 1 in which each said blade box frame support member and three point hitch frame cushion support member has an opening therethrough at a pivot point and each having a bushing mounted therein for a bolt pivot pin.

3. The drag box apparatus in accordance with claim 1 in which said three point hitch frame has a water tank frame attached thereto for supporting a water tank thereon.

4. The drag box apparatus in accordance with claim 3 in which a water tank is attached to said water tank frame on said three point hitch frame.

5. The drag box apparatus in accordance with claim 3 in which a pair of water tanks are attached to said water tank frame on said three point hitch frame.

6. The drag box apparatus in accordance with claim 4 in which said water tank has a spray system operatively attached thereto for spraying water.

7. The drag box apparatus in accordance with claim 1 in which each said blade box frame skid is removably attached to one side member.

8. The drag box apparatus in accordance with claim 1 in which said blade box frame blade is removably attached to said side frame members.

9. The drag box apparatus in accordance with claim 1 in which each said three point hitch frame cushion is removably mounted to a cushion support bar.