Woodworking – Process – Mechanical cutting or shaping
Reexamination Certificate
2001-04-19
2003-01-28
Bray, W. Donald (Department: 3725)
Woodworking
Process
Mechanical cutting or shaping
C144S162100, C144S174000, C144S242100, C144S245100, C144S172000, C241S282000
Reexamination Certificate
active
06510880
ABSTRACT:
TECHNICAL FIELD
The present invention generally relates towards wood processing, and particularly relates to a method and apparatus for reducing mill ends (a.k.a. “trim ends”) such as those provided by dimensional lumber processing.
BACKGROUND OF THE INVENTION
Lumber mills trim lumber to exact lengths, and trim out undesirable portions such as knots and other imperfections so as to improve the grade of lumber. The “trim ends” can be of various sizes, but typically includes various lengths of 2×4s, 2×6s, 2×8s, 2×12, 4×4s, 4×6s, etc. There is a need for a machine to reduce such trim ends to the proper size. Many different machines have been tried such as disc chippers, hogs, drum chippers, etc, with very little success. Therefore, improvements are needed.
SUMMARY OF THE INVENTION
The present invention overcomes deficiences in the prior art by providing an improved method and apparatus which cuts certain wood pieces, known as “mill ends”, such that the chips can be used to make paper, cardboard, and other recyclable materials.
Therefore, it is an object of the present invention to provide an improved wood processing apparatus.
It is a further object of the present invention to provide an improved wood processing method.
It is a further object of the present invention to provide an improved method of processing wood members which is efficient in operation.
It is a further object of the present invention to provide an improved method of processing wood members which is simple in operation.
It is a further object of the present invention to provide an improved method of processing wood members which is effective in providing proper chip size.
It is a further object of the present invention to provide an improved apparatus for processing wood members which is efficient in operation.
It is a further object of the present invention to provide an improved apparatus for processing wood members which is simple in operation.
It is a further object of the present invention to provide an improved apparatus for processing wood members which is effective in providing proper chip size.
It is a further object of the present invention to provide an improved apparatus for processing wood members which is effective in recovering a maximum of proper size chips and thus reduces waste.
Other objects, features, and advantages of the present invention will become apparent upon reading the following detailed description of the preferred embodiment of the invention when taken in conjunction with the drawing and the appended claims.
REFERENCES:
patent: 3195594 (1965-07-01), Bloomquist et al.
patent: 3688997 (1972-09-01), Ullener
patent: 3690568 (1972-09-01), Alexander
patent: 4305590 (1981-12-01), Haikkala et al.
patent: 4444234 (1984-04-01), Arasmith
patent: 4569380 (1986-02-01), Arasmith
patent: 4595150 (1986-06-01), Aario
patent: 4697626 (1987-10-01), Arasmith
patent: 4776375 (1988-10-01), Arasmith
patent: 4785860 (1988-11-01), Arasmith
patent: 4874024 (1989-10-01), Arasmith
patent: 5070918 (1991-12-01), Pallmann
patent: 5957178 (1999-09-01), Arasmith
patent: 6125897 (2000-10-01), Arasmith
patent: 16931 (1890-01-01), None
Alston & Bird LLP
Bray W. Donald
LandOfFree
Lumber trim end chipper does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lumber trim end chipper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lumber trim end chipper will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3041974