US3979987A — Guide square apparatus for power tools having a b…

Claim 1

Independent Claim 243 words

Guide apparatus for a power tool having a blade, comprising, in combination: carrier shoe means for receiving the power tool, including a platform on which the power tool is disposed, a guide channel extending substantially perpendicular to the platform, front wall means extending upwardly against which the power tool is disposed substantially perpendicular to the platform and to the guide channel, a side wall extending upwardly substantially perpendicular to the platform and disposed at an obtuse angle to the front wall means, and including a flange extending inwardly from the side wall spaced apart from and generally parallel to the platform; guide square means on which the carrier shoe means is movable, including a base flange for aligning and orienting the guide square means, a guide flange extending upwardly substantially perpendicular to the base flange and disposed in the guide channel of the carrier shoe means for guiding the carrier shoe means; wedge means movable relative to the carrier shoe means and under the flange of the side wall of the carrier shoe means for securing the power tool to the carrier shoe means, including a top having a front edge a first side wall connected to the top and extending substantially perpendicular to the top and to the front edge of the top, and a second side wall connected to the top and extending substantially parallel thereto, but disposed at an obtuse angle with respect to the front edge of the top.

Claim 2

Dependent Claim 243 words

Guide apparatus for a power tool having a blade, comprising, in combination: carrier shoe means for receiving the power tool, including a platform on which the power tool is disposed, a guide channel extending substantially perpendicular to the platform, front wall means extending upwardly against which the power tool is disposed substantially perpendicular to the platform and to the guide channel, a side wall extending upwardly substantially perpendicular to the platform and disposed at an obtuse angle to the front wall means, and including a flange extending inwardly from the side wall spaced apart from and generally parallel to the platform; guide square means on which the carrier shoe means is movable, including a base flange for aligning and orienting the guide square means, a guide flange extending upwardly substantially perpendicular to the base flange and disposed in the guide channel of the carrier shoe means for guiding the carrier shoe means; wedge means movable relative to the carrier shoe means and under the flange of the side wall of the carrier shoe means for securing the power tool to the carrier shoe means, including a top having a front edge a first side wall connected to the top and extending substantially perpendicular to the top and to the front edge of the top, and a second side wall connected to the top and extending substantially parallel thereto, but disposed at an obtuse angle with respect to the front edge of the top.

Claim 3

Dependent Claim 31 words

The apparatus of claim 1 in which the wedge means is movably disposed beneath the flange and a portion of the top of the wedge means is disposed adjacent the flange.

Claim 4

Dependent Claim 72 words

The apparatus of claim 10 in which the obtuse angle between the side wall and the front wall of the carrier shoe means is substantially the same as the obtuse angle between the front edge and the second wall of the wedge means and the said side wall and the second wall are disposed contiguous to each other to provide wedging action to secure the power tool to the carrier shoe means.

Claim 5

Dependent Claim 27 words

The apparatus of claim 3 in which the carrier shoe means includes a cut out portion in the platform for receiving a blade of the power tool.

Claim 6

Dependent Claim 33 words

The apparatus of claim 4 in which the wedge means includes lip means extending outwardly from the first side wall for biasing the power tool against the platform of the carrier shoe means.

Claim 7

Dependent Claim 36 words

The apparatus of claim 5 in which the lip means includes a pair of top lips and a pair of bottom lips for biasing power tools of different dimensional configurations by each said pair of lips.

Claim 8

Dependent Claim 32 words

The apparatus of claim 6 in which the pair of top lips extends outwardly from the first side wall of the wedge means a greater distance than the pair of lower lips.

Claim 9

Dependent Claim 36 words

The apparatus of claim 7 in which the lip means are substantially perpendicular to the first side wall of the wedge means but at an orientation other than perpendicular to the top of the wedge means.

Claim 10

Dependent Claim 43 words

The apparatus of claim 1 in which the front wall means includes a front wall portion and an inner front wall portion spaced apart from each other, and each portion includes one flange of the pair of flanges on the front wall means.

Claim 11

Dependent Claim 27 words

The apparatus of claim 9 in which each portion of the front wall means includes a flange generally parallel to and overlying a portion of the platform.

Claim 12

Dependent Claim 28 words

The apparatus of claim 10 in which the guide square means includes a planar portion extending substantially perpendicular to and between the base flange and the guide flange.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1979-09-14	1980-03-15	1980-09-14	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1983-09-14	1984-03-15	1984-09-14	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1987-09-14	1988-03-15	1988-09-14	$7700.00	Window Closed / Lapsed

Guide square apparatus for power tools having a blade

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