Stone working – Sawing – Rotary
Reexamination Certificate
2005-06-21
2005-06-21
Nguyen, George (Department: 3723)
Stone working
Sawing
Rotary
C125S013020, C125S012000, C125S014000, C299S041100, C172S098000
Reexamination Certificate
active
06907874
ABSTRACT:
A machine for cutting holes in concrete slabs comprises a connector adapted to be secured to an adapter of a front-end loader. Secured to the connector is a first frame structure that includes an elongated tube and a support foot for engaging the surface of a concrete slab and supporting the first frame structure. Confined within the elongated tube of the first frame structure is a beam that is slidable back and forth therein. One end portion of the beam extends from the elongated tube. A second foot structure extends downwardly from the one end portion of the beam to where it may engage the surface of the concrete slab. Secured directly or indirectly to the elongated beam is a concrete hole cutting saw unit that includes a drum type concrete saw. Interconnected between the beam and the first frame structure is a hydraulic cylinder that is operative to move the elongated beam and saw cutting unit back and forth between a retracted and extended position. Accordingly, the concrete saw can be moved back and forth, laterally with respect to the front-end loader. By raising lift arms associated with the front-end loader, the concrete hole cutting machine can be moved from location to location. In use, the lift arms are lowered to where the two feet engage the upper surface of the concrete slab and the concrete saw is lowered into engagement with the concrete slab and by driving the concrete saw a circular hole is cut in the concrete slab.
REFERENCES:
patent: 3848687 (1974-11-01), Funakubo
patent: 4013133 (1977-03-01), Bieri
patent: 4287955 (1981-09-01), Anderson
patent: 4458949 (1984-07-01), Jury
patent: 4572580 (1986-02-01), Bieri
patent: 4848845 (1989-07-01), Kennedy
patent: 4878713 (1989-11-01), Zanetis
patent: 4924951 (1990-05-01), Paulson
patent: 4968101 (1990-11-01), Bossow
patent: 5104195 (1992-04-01), Zaccho
patent: 5139006 (1992-08-01), Trudeau
patent: 5203615 (1993-04-01), Zanetis et al.
patent: 5245982 (1993-09-01), Trudeau
patent: 5388893 (1995-02-01), Maxwell et al.
patent: 5421669 (1995-06-01), Bertrand
patent: 5689072 (1997-11-01), Chiuminatta et al.
patent: 5724956 (1998-03-01), Ketterhagen
patent: 5921228 (1999-07-01), Watson
patent: 5950612 (1999-09-01), Zuzelo et al.
patent: 6058662 (2000-05-01), Perko
patent: 6112736 (2000-09-01), Bearden
patent: 6203112 (2001-03-01), Cook et al.
patent: 6227620 (2001-05-01), Page
patent: 6343981 (2002-02-01), Buchanan
patent: 6470874 (2002-10-01), Mertes
“Kor-It-K-700HRxx System,” http://www.kor-it.com/bucket-skid-core-drills.htm.
Coats & Bennett P.L.L.C.
Nguyen George
LandOfFree
Concrete hole cutting machine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Concrete hole cutting machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Concrete hole cutting machine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3519510