US3703915A — Thin kerf saw machinery

Claim 1

Independent Claim 252 words

Saw machinery including a saw arbor adapted for rotation and a circular saw blade mounted on the arbor, and guide means for controlling the cutting line of the saw blade, said guide means comprising first and second control pads, each of said control pads having a head for exerting control force upon the saw blade, said head having a recessed portion for confining fluid to provide a fluid film between the head and the saw blade when rotating, means for supporting said first control pad with the head thereof adjacent one side of said saw blade proximate the gullet line of said blade, said means comprising a support arm having said first control pad mounted thereon with the pad fixedly located with respect to said support arm at a reference point that establishes the cutting line of the saw blade, means for supporting said second control pad with the head thereof adjacent the other side of said saw blade opposite said first control pad proximate the gullet line of said blade, said means comprising another support arm having means defining a cylindrical bore, said second control pad being mounted for reciprocal movement within said bore with such reciprocal movement changing the position of the head of said second control pad with respect to the head of said first control pad, means for moving at least said second control pad with respect to the associated support means, and means for supplying fluid to the recessed portions of the heads of the control pads.

Claim 2

Dependent Claim 252 words

Saw machinery including a saw arbor adapted for rotation and a circular saw blade mounted on the arbor, and guide means for controlling the cutting line of the saw blade, said guide means comprising first and second control pads, each of said control pads having a head for exerting control force upon the saw blade, said head having a recessed portion for confining fluid to provide a fluid film between the head and the saw blade when rotating, means for supporting said first control pad with the head thereof adjacent one side of said saw blade proximate the gullet line of said blade, said means comprising a support arm having said first control pad mounted thereon with the pad fixedly located with respect to said support arm at a reference point that establishes the cutting line of the saw blade, means for supporting said second control pad with the head thereof adjacent the other side of said saw blade opposite said first control pad proximate the gullet line of said blade, said means comprising another support arm having means defining a cylindrical bore, said second control pad being mounted for reciprocal movement within said bore with such reciprocal movement changing the position of the head of said second control pad with respect to the head of said first control pad, means for moving at least said second control pad with respect to the associated support means, and means for supplying fluid to the recessed portions of the heads of the control pads.

Claim 3

Dependent Claim 58 words

Saw machinery as claimed in claim 1, wherein a seal is provided between the second control pad and the cylindrical bore said second control pad and said bore define an internal chamber within said other support arm, and wherein means is provided for supplying fluid to said chamber whereby a pressure of fluid is maintained within said chamber.

Claim 4

Dependent Claim 67 words

Saw machinery as claimed in claim 2, wherein said second control pad is formed with a groove about the periphery thereof, and said seal includes an annular base member fitting closely within the groove and an annular lip flexibly secured to an edge of said base member forming a releasable pressure seal between said control pad and said cylindrical bore maintaining fluid under pressure within said chamber.

Claim 5

Dependent Claim 54 words

Saw machinery as claimed in claim 1, wherein said support arms are formed with internal channels therein, and the means for supplying fluid to the recessed portions of the heads of the control pads comprises means in the control pads connecting their recessed portions with the internal channels formed in their respective support arms.

Claim 6

Dependent Claim 138 words

Saw machinery including first and second spaced circular saw blades, an elongate support arm having a cylindrical bore formed through one end of said arm and an internal channel formed within said arm communicating with said bore, means mounting said arm on said saw machinery with its said one end disposed between said first and second saw blades, a cylindrical sleeve retained within said bore including a wall dividing said sleeve into first and second chambers opening, respectively, toward said first and second saw blades, said sleeve having an opening formed therein adapted to communicate with said internal channel, a first control pad mounted within said first chamber adapted to exert control force upon said first saw blade, and a second control pad mounted within said second chamber adapted to exert control force upon said second saw blade.

Claim 7

Dependent Claim 138 words

Saw machinery including first and second spaced circular saw blades, an elongate support arm having a cylindrical bore formed through one end of said arm and an internal channel formed within said arm communicating with said bore, means mounting said arm on said saw machinery with its said one end disposed between said first and second saw blades, a cylindrical sleeve retained within said bore including a wall dividing said sleeve into first and second chambers opening, respectively, toward said first and second saw blades, said sleeve having an opening formed therein adapted to communicate with said internal channel, a first control pad mounted within said first chamber adapted to exert control force upon said first saw blade, and a second control pad mounted within said second chamber adapted to exert control force upon said second saw blade.

Claim 8

Dependent Claim 62 words

Saw machinery as claimed in claim 5, wherein said first control pad is retained at a fixed location within said first chamber to define a cuttinG line for said first saw blade, and said second control pad is reciprocably retained within said second chamber for providing control force to said second saw blade in response to fluid pressure within said second chamber.

Claim 9

Dependent Claim 60 words

Saw machinery as claimed in claim 6, wherein said second control pad is formed with a groove about the outer periphery thereof, a seal member is mounted within said groove including an annular base fitting closely within said groove and an annular lip flexibly secured to said base forming a releasable pressure seal between said control pad and said sleeve.

Claim 10

Dependent Claim 31 words

Saw machinery as claimed in claim 5 further including means for supplying fluid from said internal channel to form a fluid film between each control pad and its associated saw blade.

Claim 11

Dependent Claim 163 words

Saw machinery comprising a framework, an elongate saw arbor rotatably supported on said framework having at least one circular saw blade mounted thereon, a support arm disposed on one side of the saw blade and a first control pad mounted on and fixedly located with respect to said support arm at a reference point that establishes the cutting line of the saw blade, another support arm disposed on the opposite side of the saw blade and a second control pad mounted on said other support arm disposed opposite said first control pad, the mounting for said second control pad on said other support arm accommodating reciprocal movement of the control pad with respect to said other support arm in a direction substantially normal to the plane of the saw blade and including an expansible fluid-retaining chamber behind the control pad which expands with movement of the control pad toward the saw blade, and means for admitting fluid under pressure to said expansible chamber.

Claim 12

Dependent Claim 163 words

Saw machinery comprising a framework, an elongate saw arbor rotatably supported on said framework having at least one circular saw blade mounted thereon, a support arm disposed on one side of the saw blade and a first control pad mounted on and fixedly located with respect to said support arm at a reference point that establishes the cutting line of the saw blade, another support arm disposed on the opposite side of the saw blade and a second control pad mounted on said other support arm disposed opposite said first control pad, the mounting for said second control pad on said other support arm accommodating reciprocal movement of the control pad with respect to said other support arm in a direction substantially normal to the plane of the saw blade and including an expansible fluid-retaining chamber behind the control pad which expands with movement of the control pad toward the saw blade, and means for admitting fluid under pressure to said expansible chamber.

Claim 13

Dependent Claim 61 words

The apparatus of claim 9, wherein said second control pad has a recessed head facing the saw blade for confining fluid to provide a fluid film between the head and saw blade, and said pad has a passage therein connecting said expansible chamber and the recess of the head for supplying fluid from said chamber to the recess of said head.

Claim 14

Dependent Claim 142 words

Saw machinery including first and second laterally spaced circular saw blades, an elongate support arm supported on said saw machinery with an end portion thereof located between said saw blades, means at said end portion of said arm defining one chamber facing one of said saw blades and another oppositely facing chamber facing the other of said saw blades, a first control pad mounted within said one chamber exerting a control force on said first saw blade, a second control pad mounted within said other chamber exerting a control force on said second saw blade, said first control pad being retained at a fixed location within said first chamber to define a cutting line for said first saw blade and said second control pad being reciprocably retained within said second chamber for providing a yieldable control force to said second saw blade.

Claim 15

Dependent Claim 142 words

Saw machinery including first and second laterally spaced circular saw blades, an elongate support arm supported on said saw machinery with an end portion thereof located between said saw blades, means at said end portion of said arm defining one chamber facing one of said saw blades and another oppositely facing chamber facing the other of said saw blades, a first control pad mounted within said one chamber exerting a control force on said first saw blade, a second control pad mounted within said other chamber exerting a control force on said second saw blade, said first control pad being retained at a fixed location within said first chamber to define a cutting line for said first saw blade and said second control pad being reciprocably retained within said second chamber for providing a yieldable control force to said second saw blade.

Claim 16

Dependent Claim 56 words

The saw machinery of claim 11, wherein said support arm has a channel defined therein adapted to be connected to a supply of fluid under pressure, and wherein means connects said channel to said other chamber to admit fluid under pressure into said other chamber with said fluid exerting a pressure on said second control pad.

Claim 17

Dependent Claim 56 words

The saw machinery of claim 12, wherein each control pad has a recessed head for confining fluid, to provide a fluid film between the head and the saw blade that the pad containing the head controls, and wherein each pad includes means connecting the channel defined in said arm with the recessed head of the pad.

Claim 18

Dependent Claim 184 words

Saw machinery including a saw arbor and a saw blade mounted on said arbor, an elongate support arm mounted in said machinery having an end adjacent said saw blade and means at said end of said support arm defining a chamber facing said saw blade, a control pad reciprocably mounted within said chamber for exerting a controlling force on the saw blade, the reciprocal movement being normal to the plane of the blade, said pad having a recessed head on a side thereof facing the saw blade for confining fluid to provide a fluid film between the head and the saw blade when the saw blade is rotating, a passage in said control pad connecting the recessed head with said chamber in a region of the chamber located on the opposite side of the pad from said head, and means for introducing fluid under pressure to said region of said chamber to produce a pressure fluid against said pad urging the same against said saw blade and also to introduce fluid to the recess of said head through said passage in the control pad.

Claim 19

Dependent Claim 184 words

Saw machinery including a saw arbor and a saw blade mounted on said arbor, an elongate support arm mounted in said machinery having an end adjacent said saw blade and means at said end of said support arm defining a chamber facing said saw blade, a control pad reciprocably mounted within said chamber for exerting a controlling force on the saw blade, the reciprocal movement being normal to the plane of the blade, said pad having a recessed head on a side thereof facing the saw blade for confining fluid to provide a fluid film between the head and the saw blade when the saw blade is rotating, a passage in said control pad connecting the recessed head with said chamber in a region of the chamber located on the opposite side of the pad from said head, and means for introducing fluid under pressure to said region of said chamber to produce a pressure fluid against said pad urging the same against said saw blade and also to introduce fluid to the recess of said head through said passage in the control pad.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1975-11-28	1976-05-29	1976-11-28	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1979-11-28	1980-05-29	1980-11-28	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1983-11-28	1984-05-29	1984-11-28	$7700.00	Window Closed / Lapsed

Thin kerf saw machinery

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