Anti-pinch device for chain saw
First Claim
Patent Images
1. An anti-pinch device for a chain saw comprising:
- a vertical support mounted normal to a saw blade of said chain saw; and
,a pinch arm comprising an elongated substantially planar bar which extends along said saw blade and normal to said support, said pinch arm being movable mounted on said support for both rotation and transverse movement with respect to said support, said pinch arm having a thickness slightly less than a saw kerf and disposed to follow said saw blade into said kerf.
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Accused Products
Abstract
In one embodiment, the anti-pinch device includes a vertical support mounted normal to the saw blade of the chain saw. A pinch arm extends longitudinally above the saw blade and is mounted for translational movement along the length of the vertical support. The pinch arm is attached to a transversely movable mount by a pivot such that the pinch arm can pivotally move with respect to the vertical support and the mount and pinch arm can transversely move up and down the vertical support in a substantially free manner.
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Citations
34 Claims
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1. An anti-pinch device for a chain saw comprising:
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a vertical support mounted normal to a saw blade of said chain saw; and
,a pinch arm comprising an elongated substantially planar bar which extends along said saw blade and normal to said support, said pinch arm being movable mounted on said support for both rotation and transverse movement with respect to said support, said pinch arm having a thickness slightly less than a saw kerf and disposed to follow said saw blade into said kerf. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An anti-pinch device for a chain saw comprising:
a pinch arm having a substantially planar longitudinal portion extending along a saw blade and a support portion normal to said longitudinal portion, said longitudinal portion being movably mounted by a rotatable and translatory mount on said saw blade of said chain saw for both rotation and transverse movement with respect to said saw blade, said longitudinal portion having a thickness slightly less than a saw kerf and disposed to follow said saw blade into said kerf. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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32. An anti-pinch arm for use in a chain saw cutting system comprising:
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an elongated, substantially planar bar having a plurality of pin passages normal to the planar surfaces thereof, and disposed at predetermined longitudinal points along said bar, said bar having a thickness slightly less than a kerf of a saw cut; and
,at least two pins removably insertable into said passages such that the pins, when inserted hang said bar in said kerf. - View Dependent Claims (33, 34)
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Specification