Rotary cylinder end wall insulator with seal

Claim 2

An insulator assembly for mounting to the exterior surface of the axial end wall of a temperature controlled rotary cylinder, the end wall including a series of connector screw heads protruding therefrom at its periphery in an annular array and an axle protruding centrally therefrom, said end panel insulator assembly including a one piece flexible insulator blanket with an annular outer peripheral edge portion sized to extend adjacent the connector screw heads of the rotary cylinder, a central opening with an annular inner peripheral edge portion sized to extend about the axle of the rotary cylinder, and a slot extending radially from said central opening through said annular outer peripheral edge portion, means for closing said slot, means for mounting the annular outer peripheral portion of said insulator blanket to an end wall of the rotary cylinder, and a soft annular protrusion connected to the insulator blanket adjacent the outer peripheral edge portion of the blanket and extending from the blanket toward the axial end wall of the rotary cylinder for engagement with the axial end wall inside the annular array of connector screw heads of the axial end wall of the rotary cylinder for forming an annular seal between the annular outer peripheral portion of said insulator blanket and the end wall of the rotary cylinder adjacent the annular array of screw heads.

Claim 3

The insulator assembly of claim 1 and further including means for mounting the annular inner peripheral portion of said insulator blanket to the portion of the axial end wall adjacent the axle.

Claim 4

The insulator assembly of claim 1 and further including an inner mounting ring of a diameter sufficient to extend about the axle of the rotary cylinder for connection to the annular inner peripheral edge portion of said insulator blanket, means for attaching said inner mounting ring to the axial end wall of the rotary cylinder and means for urging the inner mounting ring away from the axial end wall of the rotary cylinder to stretch said insulator blanket.

Claim 5

An insulator for mounting to the exterior surface of the axial end wall of a temperature controlled rotary cylinder, the end wall including at its outer peripheral portion a series of connector screw heads arranged in an annular array and an axle protruding centrally therefrom, said insulator comprising a one piece flexible insulator blanket with an annular outer peripheral edge portion sized to extend about the connector screw heads of the rotary cylinder, a central opening with an annular inner peripheral edge portion sized to extend about the axle of the rotary cylinder, a slot in said insulator blanket extending radially from said central opening through said annular outer peripheral edge portion, connector means for mounting the outer peripheral edge portion of said insulator blanket to the axial end wall of the rotary cylinder about the connector screw heads, said insulator blanket including at its outer peripheral portion an annular protrusion for mounting against the axial end wall of the rotary cylinder at a position radially inwardly of the connector screw heads of the end wall of the rotary cylinder whereby the centrifugal forces exerted on the annular protrusion during rotation of the insulator blanket with the rotary cylinder tend to urge the annular protrusion radially outwardly so that the protrusion tends to seat against the external surface of the axial end wall inwardly of the series of connector screw heads and form a seal against the axial end wall of the rotary cylinder.

Claim 6

An insulator for mounting to the exterior surface of the axial end wall of a temperature controlled rotary cylinder, the end wall including at its outer peripheral portion a series of connector screw heads arranged in an annular array and an axle protruding centrally therefrom, said insulator comprising a one piece flexible insulator blanket with an annular outer peripheral edge portion sized to extend about the connector screw heads of the rotary cylinder, a central opening with an annular inner peripheral edge portion sized to extend about the axle of the rotary cylinder, a slot in said insulator blanket extending radially from said central opening through said annular outer peripheral edge portion, connector means for mounting the outer peripheral edge portion of said insulator blanket to the axial end wall of the rotary cylinder about the connector screw heads, said insulator blanket including at its outer peripheral portion an annular protrusion for mounting against the axial end wall of the rotary cylinder at a position radially inwardly of the connector screw heads of the end wall of the rotary cylinder whereby the centrifugal forces exerted on the annular protrusion during rotation of the insulator blanket with the rotary cylinder tend to urge the annular protrusion radially outwardly so that the protrusion tends to seat against the external surface of the axial end wall inwardly of the series of connector screw heads and form a seal against the axial end wall of the rotary cylinder.

Claim 7

The insulator of claim 4 and wherein said connector means comprises a plurality of approximately T-shaped mounting blocks each including a stem for placement between adjacent ones of the connector screw heads of the rotary cylinder and each including a cross bar for placement in inward abutment with the adjacent connector screw heads of the rotary cylinder, each mounting block including an internally threaded opening for receiving a screw for connecting the insulator blanket to the mounting block, and means for connecting the mounting block to the axial end wall of a rotary cylinder.

Claim 8

The insulator of claim 4 and wherein said connector means comprises an annular mounting ring assembly sized to extend about the annular array of connector screw heads, said mounting ring being L-shaped in cross-section with a face span for extending about the connector screw heads and a cylindrical span extending at an approximately right angle with respect to said face span and for extending toward the axial end wall of the rotary cylinder inwardly adjacent the annular array of connector screw heads.

Claim 9

The insulator of claim 6 and wherein the axial end wall of the rotary cylinder includes jack screw openings, and wherein said connector means includes screws for extending through openings in the face span of said mounting ring and into the jack screw openings of the rotary cylinder.

Claim 10

The insulator of claim 4 and wherein said connector means comprises a plurality of mounting blocks each defining a pair of openings therein sized and positioned to be inserted about adjacent ones of the connector screw heads of the rotary cylinder and each mounting block including an internally threaded opening for receiving a screw for connecting the insulator blanket to the mounting block.

Claim 11

An insulator blanket for mounting to the exterior surface of the axial end wall of a temperature controlled rotary cylinder, the end wall including an axle protruding centrally therefrom, said insulator blanket comprising an annular outer peripheral edge portion, a central opening with an annular inner peripheral edge portion seized to extend about the axle of the rotary cylinder, a slot extending radially from the central opening through said outer peripheral edge portion, connector means for holding the edges of said blanket at said slot in juxtaposition, and flap means connected to said blanket at said slot for extending from one edge portion toward the other edge portion of said blanket at said slot to overlap said connector means.

Claim 12

An insulator blanket for mounting to the exterior surface of the axial end wall of a temperature controlled rotary cylinder, the end wall including an axle protruding centrally therefrom, said insulator blanket comprising an annular outer peripheral edge portion, a central opening with an annular inner peripheral edge portion seized to extend about the axle of the rotary cylinder, a slot extending radially from the central opening through said outer peripheral edge portion, connector means for holding the edges of said blanket at said slot in juxtaposition, and flap means connected to said blanket at said slot for extending from one edge portion toward the other edge portion of said blanket at said slot to overlap said connector means.

Claim 13

The insulator blanket of claim 9 and wherein said connector means comprises a series of grommets formed in said blanket and extending along the edges of said blanket at said slot, and a draw string for extending through said slots for drawing together the edges of said blanket at said slot.

Claim 14

The insulator blanket of claim 9 and wherein said flap means comprises two flaps, one flap connected to said insulator blanket on one side of said slot and the other flap connected to said insulator blanket on the other side of said slot, and means for connecting the flaps together in closed relationship about said connector means.

Claim 15

An insulator assembly for mounting to the exterior surface of the axial end wall of a temperature controlled rotary cylinder, the end wall including a series of connector screw heads protruding therefrom at its periphery in an annular array and an axle protruding centrally therefrom, said end panel insulator assembly including a one piece flexible insulator blanket with an annular outer peripheral edge portion sized to extend adjacent the connector screw heads of the rotary cylinder, a central opening with an annular inner peripheral edge portion sized to extend about the axle of the rotary cylinder, and a slot extending radially from said central opening through said annular outer peripheral edge portion, means for closing said slot, means for mounting the annular outer peripheral portion of said insulator blanket to an end wall of the rotary cylinder and for forming a seal between the annular outer peripheral portion of said insulator blanket and end wall of the rotary cylinder comprising a mounting ring approximately L-shaped in cross-section and including a face span oriented approximately parallel to the axial end wall of the rotary cylinder and a cylindrical span extending from the inner edge of said face span, connector means for mounting said mounting ring to the axial end wall of the rotary cylinder with the cylindrical span of the mounting ring extending toward the axial end wall of the rotary cylinder at a position within the array of connector screws of the rotary cylinder, said insulator blanket further including an annular protrusion located inwardly of said annular mounting ring and which is biased by centrifugal forces outwardly toward engagement with the axial end wall of the rotary cylinder to form a seal between the annular peripheral portion of said insulator blanket, the end wall of the rotary cylinder, and the cylindrical span of said mounting ring.

Claim 16

An insulator assembly for mounting to the exterior surface of the axial end wall of a temperature controlled rotary cylinder, the end wall including a series of connector screw heads protruding therefrom at its periphery in an annular array and an axle protruding centrally therefrom, said end panel insulator assembly including a one piece flexible insulator blanket with an annular outer peripheral edge portion sized to extend adjacent the connector screw heads of the rotary cylinder, a central opening with an annular inner peripheral edge portion sized to extend about the axle of the rotary cylinder, and a slot extending radially from said central opening through said annular outer peripheral edge portion, means for closing said slot, means for mounting the annular outer peripheral portion of said insulator blanket to an end wall of the rotary cylinder and for forming a seal between the annular outer peripheral portion of said insulator blanket and end wall of the rotary cylinder comprising a mounting ring approximately L-shaped in cross-section and including a face span oriented approximately parallel to the axial end wall of the rotary cylinder and a cylindrical span extending from the inner edge of said face span, connector means for mounting said mounting ring to the axial end wall of the rotary cylinder with the cylindrical span of the mounting ring extending toward the axial end wall of the rotary cylinder at a position within the array of connector screws of the rotary cylinder, said insulator blanket further including an annular protrusion located inwardly of said annular mounting ring and which is biased by centrifugal forces outwardly toward engagement with the axial end wall of the rotary cylinder to form a seal between the annular peripheral portion of said insulator blanket, the end wall of the rotary cylinder, and the cylindrical span of said mounting ring.

Claim 17

The insulator assembly of claim 12 and wherein said connector means is constructed and arranged to urge the cylindrical span of said mounting ring into engagement with the end wall of the rotary cylinder.

Claim 18

The insulator assembly of claim 12 and wherein the axial end wall of the temperature controlled rotary cylinder includes jack screw openings in an annular array at positions between the connector screw heads, and wherein said connector means for mounting said mounting ring to the axial end wall of the rotary cylinder comprises threaded screws for insertion through openings in the face span of said mounting ring and into the jack screw openings of the rotary cylinder openings.

Claim 19

An insulator assembly for mounting to the exterior surface of the axial end wall of a temperature controlled rotary cylinder, the end wall including a series of connector screw heads protruding therefrom, said end panel insulator assembly including a one piece flexible insulator blanket with an annular outer peripheral edge portion sized to extend adjacent the connector screw heads of the rotary cylinder, a central opening with an annular enner peripheral edge portion sized to extend about the axle of the rotary cylinder, and a slot extending radially from said central opening through said annular outer peripheral edge portion, means for closing said slot, means for mounting the annular outer peripheral portion of said insulator blanket to an end wall of the rotary cylinder and for forming a seal between the annular outer peripheral portion of said insulator blanket and end wall of the rotary cylinder including an annular protrusion located inwardly of the annular outer peripheral edge portion of said insulator blanket, and a peripheral binding extending about the annular outer peripheral edge portion of said insulator blanket and anchoring said annular protrusion to said insulator blanket.

Claim 20

An insulator assembly for mounting to the exterior surface of the axial end wall of a temperature controlled rotary cylinder, the end wall including a series of connector screw heads protruding therefrom, said end panel insulator assembly including a one piece flexible insulator blanket with an annular outer peripheral edge portion sized to extend adjacent the connector screw heads of the rotary cylinder, a central opening with an annular enner peripheral edge portion sized to extend about the axle of the rotary cylinder, and a slot extending radially from said central opening through said annular outer peripheral edge portion, means for closing said slot, means for mounting the annular outer peripheral portion of said insulator blanket to an end wall of the rotary cylinder and for forming a seal between the annular outer peripheral portion of said insulator blanket and end wall of the rotary cylinder including an annular protrusion located inwardly of the annular outer peripheral edge portion of said insulator blanket, and a peripheral binding extending about the annular outer peripheral edge portion of said insulator blanket and anchoring said annular protrusion to said insulator blanket.

Claim 21

An insulator for mounting to the exterior surface of the axial end wall of a temperature controlled rotary cylinder, the end wall including at its outer peripheral portion a series of connector screw heads arranged in an annular array and an axle protruding centrally therefrom, said insulator comprising a one-piece flexible insulator blanket with an annular outer peripheral ege portion sized to extend about the connector screw heads of the rotary cylinder, a central opening with an annular inner peripheral edge portion sized to extend about the axle of the rotary cylinder, a slot in said insulator blanket extending radially from said central opening through said annular outer peripheral edge portion, connector means for mounting the outer peripheral edge portion of said insulator blanket to the axial end wall of the rotary cylinder about the connector screw heads, a peripheral binding formed about the annular outer peripheral edge portion of said insulator blanket, said insulator blanket including at its outer peripheral portion an annular protrusion for mounting against the axial end wall of the rotary cylinder inwardly of the series of connector screw heads to form a seal between said insulator blanket and the axial end wall of the rotary cylinder, said annular protrusion being held to said insulator blanket by said peripheral binding.

Claim 22

An insulator for mounting to the exterior surface of the axial end wall of a temperature controlled rotary cylinder, the end wall including at its outer peripheral portion a series of connector screw heads arranged in an annular array and an axle protruding centrally therefrom, said insulator comprising a one-piece flexible insulator blanket with an annular outer peripheral ege portion sized to extend about the connector screw heads of the rotary cylinder, a central opening with an annular inner peripheral edge portion sized to extend about the axle of the rotary cylinder, a slot in said insulator blanket extending radially from said central opening through said annular outer peripheral edge portion, connector means for mounting the outer peripheral edge portion of said insulator blanket to the axial end wall of the rotary cylinder about the connector screw heads, a peripheral binding formed about the annular outer peripheral edge portion of said insulator blanket, said insulator blanket including at its outer peripheral portion an annular protrusion for mounting against the axial end wall of the rotary cylinder inwardly of the series of connector screw heads to form a seal between said insulator blanket and the axial end wall of the rotary cylinder, said annular protrusion being held to said insulator blanket by said peripheral binding.