A boss configured for attachment to a pressure vessel includes a first bore therein and a bearing disposed at least partially within the first bore. A system for supporting a pressure vessel on a vessel mount includes a boss, a bearing, and an attachment element. The boss is attached to the pressure vessel and has a first bore therein. The bearing is disposed at least partially within the first bore and has a second bore therethrough. The attachment element is configured to be affixed to the vessel mount, wherein a portion of the attachment element extends through the second bore and is slidable within the first and second bores substantially along a longitudinal axis of the pressure vessel. A method is described for supporting a pressure vessel on a vessel mount.

A boss configured for attachment to a pressure vessel includes a first bore therein and a bearing disposed at least partially within the first bore. A system for supporting a pressure vessel on a vessel mount includes a boss, a bearing, and an attachment element. The boss is attached to the pressure vessel and has a first bore therein. The bearing is disposed at least partially within the first bore and has a second bore therethrough. The attachment element is configured to be affixed to the vessel mount, wherein a portion of the attachment element extends through the second bore and is slidable within the first and second bores substantially along a longitudinal axis of the pressure vessel. A method is described for supporting a pressure vessel on a vessel mount.

A chair backrest swing structure includes a chassis connecting seat, a backframe connecting seat and an elastic buffer and reset member. The chassis connecting seat is configured to be cooperatively mounted with a chassis. The backframe connecting seat is configured to be cooperatively mounted with a backframe. The backframe connecting seat is rotatably cooperated with the chassis connecting seat. The elastic buffer and reset member is configured to enable that the backframe connecting seat may implement buffer and reset when swung left and right on the chassis connecting seat.

A boss configured for attachment to a pressure vessel includes a first bore therein and a bearing disposed at least partially within the first bore. A system for supporting a pressure vessel on a vessel mount includes a boss, a bearing, and an attachment element. The boss is attached to the pressure vessel and has a first bore therein. The bearing is disposed at least partially within the first bore and has a second bore therethrough. The attachment element is configured to be affixed to the vessel mount, wherein a portion of the attachment element extends through the second bore and is slidable within the first and second bores substantially along a longitudinal axis of the pressure vessel. A method is described for supporting a pressure vessel on a vessel mount.

A boss configured for attachment to a pressure vessel includes a first bore therein and a bearing disposed at least partially within the first bore. A system for supporting a pressure vessel on a vessel mount includes a boss, a bearing, and an attachment element. The boss is attached to the pressure vessel and has a first bore therein. The bearing is disposed at least partially within the first bore and has a second bore therethrough. The attachment element is configured to be affixed to the vessel mount, wherein a portion of the attachment element extends through the second bore and is slidable within the first and second bores substantially along a longitudinal axis of the pressure vessel. A method is described for supporting a pressure vessel on a vessel mount.

An accessory mounting track provides quick and easy removable attachment and positioning of various devices. The method of attachment of devices to the accessory mounting track may be compatible with the attachment of these devices to other mounting systems, allowing the accessory mounting track to be used interchangeably with those systems.

A joint device (6) including an axially extending pivot pin (8) and a housing (11) that surrounds the pivot pin radially, wholly or partially, such that the pivot pin (8) and the housing (11) can move relative to one another at least by pivoting. A separate retaining element (12; 13), for the housing (11), is associated with the joint device (6). The joint device is designed in such manner that the retaining element (11) starts from an area (14) of the housing (11) and engages in a substantially axial channel (15) of the pin (8).

A connecting system for connecting a tensioning member to a free-space shaft may comprise an inner element having an element spherical outer surface truncated at opposite truncated ends and may include an element bore extending through the inner element and coaxial with the element spherical outer surface. The element bore may have a bore axis and a bore cross section sized and configured complementary to a shaft cross section of the free-space shaft. A retaining collar may include a collar spherical inner surface complementary to and configured to receive the element spherical outer surface, and may have opposing collar ends. The collar spherical inner surface may define a collar axis. The retaining collar may allow universal motion of the bore axis relative to the collar axis. The retaining collar may include an arching portion for connecting the tensioning member to the shaft.

An accessory mounting track provides quick and easy removable attachment and positioning of various devices. The method of attachment of devices to the accessory mounting track may be compatible with the attachment of these devices to other mounting systems, allowing the accessory mounting track to be used interchangeably with those systems.

A socket joint for carrying a mirror head or indirect vision system on a support tube to be mounted to a vehicle and a mirror or indirect vision arrangement comprising such socket joint and a mirror head or indirect vision system is provided. The socket joint comprises a support tube with at least one opening to be attached to a vehicle, a joint base contacting the support tube, at least one anchor extending through said at least one opening in said support tube, and at least one fastener engaging the at least one anchor and extending through a fastening hole in the joint base into the anchor. By the engagement of the fastener in or with the anchor, the portion of the anchor located within the support tube engages an interior surface of said support tube and said support tube is clamped between anchor and joint base.