A flexible pipe joint has a body and an annular elastomeric flexible element flexibly coupling an extension pipe to the body and operable to pivot the extension pipe with respect to the body. The flexible pipe joint also has an annular flexible boot operable to thermally or chemically insulating the annular elastomeric flexible element from the fluid flowing through a lumen of the flexible pipe joint. The annular flexible boot encircles the lumen, and the annular flexible boot has a first annular end attached to the extension pipe and a second annular end mounted so that pivoting of the extension pipe with respect to the body causes a flexing of the annular flexible boot, and a majority of the annular flexible boot has a shape conforming to shape of neighboring components of the flexible pipe joint.

A flexible pipe joint has a body and an annular elastomeric flexible element flexibly coupling an extension pipe to the body and operable to pivot the extension pipe with respect to the body. The flexible pipe joint also has an annular flexible boot operable to thermally or chemically insulating the annular elastomeric flexible element from the fluid flowing through a lumen of the flexible pipe joint. The annular flexible boot encircles the lumen, and the annular flexible boot has a first annular end attached to the extension pipe and a second annular end mounted so that pivoting of the extension pipe with respect to the body causes a flexing of the annular flexible boot, and a majority of the annular flexible boot has a shape conforming to shape of neighboring components of the flexible pipe joint.

A flexible pipe joint has a body and an annular elastomeric flexible element flexibly coupling an extension pipe to the body for pivoting of the extension pipe with respect to the body. The flexible pipe joint also has an annular flexible boot for thermally or chemically insulating the annular elastomeric flexible element from the fluid flowing through a lumen of the flexible pipe joint. The annular flexible boot encircles the lumen, and the annular flexible boot has a first annular end attached to the extension pipe and a second annular end mounted so that pivoting of the extension pipe with respect to the body causes a flexing of the annular flexible boot, and a majority of the annular flexible boot has a shape conforming to shape of neighboring components of the flexible pipe joint.

A flexible pipe joint has a body and an annular elastomeric flexible element flexibly coupling an extension pipe to the body for pivoting of the extension pipe with respect to the body. The flexible pipe joint also has an annular flexible boot for thermally or chemically insulating the annular elastomeric flexible element from the fluid flowing through a lumen of the flexible pipe joint. The annular flexible boot encircles the lumen, and the annular flexible boot has a first annular end attached to the extension pipe and a second annular end mounted so that pivoting of the extension pipe with respect to the body causes a flexing of the annular flexible boot, and a majority of the annular flexible boot has a shape conforming to shape of neighboring components of the flexible pipe joint.

A ventilation system is operable to ventilate gases from an enclosed building. The ventilation system broadly includes a ventilation tube, a ventilation fan, and a flexible flow-through coupler. The tube is operable to extend into and out of the building for transmitting gases along the length of the tube. The fan is in fluid communication with the ventilation tube and is located to pump gases along the tube length. The coupler connects and fluidly communicates the fan to the ventilation tube, with the flexible coupler isolating at least part of the ventilation tube from vibration caused by the fan. The coupler comprises a flexible material with a Shore A hardness less than about 50.

A ventilation system is operable to ventilate gases from an enclosed building. The ventilation system broadly includes a ventilation tube, a ventilation fan, and a flexible flow-through coupler. The tube is operable to extend into and out of the building for transmitting gases along the length of the tube. The fan is in fluid communication with the ventilation tube and is located to pump gases along the tube length. The coupler connects and fluidly communicates the fan to the ventilation tube, with the flexible coupler isolating at least part of the ventilation tube from vibration caused by the fan. The coupler comprises a flexible material with a Shore A hardness less than about 50.

A flexible pipe joint (200) includes a body (210) having a pin-end member (230) telescopically fitted within a box-end member (220), the pin-end member (230) including an outer connection profile (235) and the box-end member (220) including a complementary inner connection profile (225), a bearing (240) including an outer bearing surface (244), wherein the bearing (240) is fitted within the body (210) such that at least a portion of an inner body surface (212) interfaces with at least a portion the outer bearing surface (244), and wherein the bearing (240) includes an inner bearing surface (243), and an extension pipe (270) including an outer extension pipe surface (289), wherein the extension pipe (270) is fitted within the bearing (240) such that at least a portion of the inner bearing surface (243) interfaces with at least a portion of the outer extension pipe surface (289).

Methods for producing an expansion compensator by: providing an inner plastic liner having first and second spaced apart ends, an inner surface, an outer surface, and an interior volume extending from the first end to the second end; positioning the inner plastic liner interior of an elongate metal conduit, the elongate metal conduit having first and second spaced apart ends, an inner surface, an outer surface, and an expansion/contraction section; applying pressure to a fluid positioned in the interior volume of the inner plastic liner while the inner plastic liner is at or above a forming temperature to expand the inner plastic liner whereby the expanded inner plastic liner has an expansion/contraction section; and cooling the inner plastic liner to below the forming temperature.

A flexible joint assembly for a joint between a first duct and a second duct for providing a flow of fluid, such as bleed air in an aviation implementation. The flexible joint includes a bellows supported by a mounting assembly having a first support and a second support, each surrounding a portion of the bellows. A gimbal ring assembly of the joint assemblies can operably couple the first support and the second support.

A flexible joint assembly for a joint between a first duct and a second duct for providing a flow of fluid, such as bleed air in an aviation implementation. The flexible joint includes a bellows supported by a mounting assembly having a first support and a second support, each surrounding a portion of the bellows. A gimbal ring assembly of the joint assemblies can operably couple the first support and the second support.