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 Title: |
US6675913:
Core drilling method and apparatus
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Martin, Wilfred R.; Capitol Heights, MD 20743
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| Assignee: |
None
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| Published / Filed: |
2004-01-13
/ 2002-07-30
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| Application Number: |
US2002000208088
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| IPC Code: |
Advanced:
B23D 59/02;
B23Q 11/00;
B28D 1/04;
B28D 7/02;
Core:
B23D 59/00;
B28D 1/02;
B28D 7/00;
more...
IPC-7:
E21B 1/00;
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| ECLA Code: |
B23D59/02; B23Q11/00F2; B28D1/04A; B28D7/02;
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| U.S. Class: |
175/020;
173/053;
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| Field of Search: |
175/019,20,55,56,135,293,299,403,407
173/053
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| Priority Number: |
| 2002-07-30 |
US2002000208088 |
| 2002-06-04 |
US2002000385712P |
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| Abstract: |
A method and apparatus for core drilling of concrete by resiliently mounting a hammer drill to a drill press or similar support frame using a recoil spring to maintain a driving force on the hammer drill. An air blower is positioned adjacent the core drilling bit to provide cooling of the bit and material removal from the core such that the bit no longer needs to be periodically withdrawn from the core for material removal. In a preferred embodiment, the support frame uses a screw jack to periodically move the resiliently mounted hammer drill. Use of an inexpensive electric blower and electric hammer drill allow semi-automatic remote operation, wherein the screw jack is turned to compress the recoil spring and then the blower and hammer drill are turned on from a remote distance by switching the electricity on. In this manner, the operator can operate the core drilling system without being subjected to the concrete dust and debris being blown from the core by the blower.
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| Attorney, Agent or Firm: |
Roberts Abokhair & Mardula, LLC ;
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| Primary / Asst. Examiners: |
Tsay, Frank;
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Parent Case: |
RELATIONSHIP TO PRIOR APPLICATIONS
This application claims the benefit of U.S. Provisional Application Ser. No. 60/385,712, filed Jun. 4, 2002 and hereby incorporated by reference in its entirety.
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| Family: |
Show 2 known family members
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First Claim:
Show all 15 claims |
I claim:
1. A method of core drilling, comprising:
- mounting a hammer drill and core bit in a position for core drilling;
- supplying a drilling force by compression of a resilient means attached to said hammer drill;
- positioning an air blower adjacent said core bit; and
- operating said hammer drill and blower simultaneously to perform core drilling.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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