US 8,869,786 B2Granted

Chop saw with dust collection system

OwnerMitch Faiweather, Stephen M. Curtis +2inventors

InventorsMitch Faiweather, Stephen M. Curtis, Paul W. Guth, Randy Ott

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Abstract

A chop saw, grinding wheel, or like apparatus is disclosed herein also incorporated to an easily portable dust collection system. In a preferred embodiment, a worktable is provided with a center slot for receiving a circular saw blade. A negative pressure and resulting air flow is provided at the center slot to capture particulate matter as a byproduct of cutting the workpiece. Side slots are also disclosed to assist in particulate collection. A unique filter chamber having a cylindrical filter is additionally provided to remove dust from air and discharge the filtered air at a lateral side of the apparatus. A filter cleaning knob is additionally disclosed to assist in cleaning the filter. Of the beneficial aspects of the chop saw with dust collection system is its portability being one integral unit and the dust filter being easily cleaned and maintained.

Claims14

Dependent claims

A cut off saw comprising:

a worktable for supporting a work piece, the worktable further having four sides extending downwardly forming lateral portions of a housing;
a rotatable arm fixed to a circular saw blade and pivotably secured to the worktable;
a center slot carved out of the worktable axially aligned to the circular saw blade;
a vacuum motor apparatus configured within and underneath the worktable having said four sides extending downwardly forming lateral portions of said housing, the vacuum motor apparatus providing negative pressure with respect to atmosphere at the center slot and collecting dust from the work piece created as a byproduct from use of the cut off saw, the housing further comprising an upper housing having the vacuum motor apparatus;
a saw motor mechanically coupled to the circular saw blade;
and
a lower dust bin connected below the upper housing, the upper housing and lower dust bin each including a front panel, a back panel and first and second lateral sides, wherein the upper housing further comprises a lateral partitioning wall extending from first and second lateral sides, and wherein the upper housing further comprises a transverse partitioning wall defining both a vacuum motor chamber and a filter chamber.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/497,390Filed 2 Jul 2009 · us provisional application
Priority: 3 Jul 2008
Published: US 2010/0116261 A113 May 2010
Granted: 28 Oct 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

B28D 7/02
Accessories specially adapted for use with machines or devices of the preceding groups: for removing or laying dust, e.g. by spraying liquids; for…
B23D 47/025
Of frames; of guiding arrangements for work-table or saw-carrier: of tables
B23D 59/0064
For removing or collecting chips: by suction
B23Q 11/0046
Devices for removing chips: by sucking