Woodworking – Workbench – Having adjustable stock rest
Reexamination Certificate
2001-06-25
2003-06-24
Ostrager, Allen (Department: 3725)
Woodworking
Workbench
Having adjustable stock rest
C083S438000, C083S468700, C083S477200, C269S298000
Reexamination Certificate
active
06581655
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to a process machinery, and more particularly to a work bench of the process machinery.
BACKGROUND OF THE INVENTION
The process machine, such as a circular saw or wood working tool, is generally provided with a work bench to facilitate the placing of a workpiece. The size of the work bench is generally dependent on the size of the workpiece as well as the process pattern. In other words, the process machine is provided with a relatively large work bench to facilitate the processing of a correspondingly large workpiece. However, it is conceivable that an excessively large work bench takes up an additional floor space and is often charged an extra transportation fees. On the contrary, a small-sized work bench is incapable of providing a workpiece with a stable load effect, even though the small-sized work bench is cheaper to ship and does not take up a large floor space. For the reasons stated above, the size of the work bench is often taken into consideration by a purchaser of a process machine.
SUMMARY OF THE INVENTION
It is the primary objective of the present invention to provide a process machine with a work bench which can be changed in size of the area for loading a workpiece in accordance with the size of the workpiece.
It is another objective of the present invention to provide a process machine with a work bench which is provided with a size indicating device for examining the size of a workpiece to be processed by the process machine.
It is still another objective of the present invention to provide a process machine with a work bench which is user-friendly.
It is still another objective of the present invention to provide a process machine with a portable work bench which does not take up a large floor space and can be easily packaged and shipped economically.
The process machine work bench of the present invention comprises a first work table which is provided with a first reference, at least one joining portion, and at least one guide portion; a second work table which is provided with at least one connection portion and at least one second guide portion. The connection portion is joined with the joining portion such that the connection portion slide back and forth along a predetermined direction provided by the joining portion, so as to enable the second work table to move toward or away from the first work table. The second guide portion and the first guide portion are coaxially disposed. A material stopping device comprises a material stopping member and a locating member. The material stopping member has a second reference portion and at least one slide portion capable of sliding along the first guide portion or the second guide portion, thereby enabling the material stopping member to move between the first work table and the second work table. The locating member is intended to enable the material stopping member to be fixed at any position of the work tables. An indicating device comprises a ruler and an indicating portion. The ruler is fixed on the first work table and is provided with a first direction extension scale. The indicating portion is changed in its position along with the change in position of the material stopping member in relation to the first direction extension scale.
REFERENCES:
patent: 718026 (1903-01-01), Robinson
patent: 2852049 (1958-09-01), Peterson
patent: 4133360 (1979-01-01), Sanfilippo et al.
patent: 4964450 (1990-10-01), Hughes et al.
patent: 5363893 (1994-11-01), Grochowicz
patent: 6062121 (2000-05-01), Ceroll et al.
Browdy and Neimark , P.L.L.C.
Duro Machinery Corp.
Ostrager Allen
Self Shelley
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