106 results about "Collapsible tube" patented technology

The present invention involves, in some embodiments, mechanisms and methods of occluding collapsible tubing with an occluder to prevent fluid flow therethrough. In some embodiments, a tube occluding mechanism is disclosed that includes a bendable occluding member for creating a force that can be applied to a collapsible tube to occlude the tube. In some embodiments, the collapsible tube can be an inlet / outlet tube on a removable pumping cartridge that is coupled to a reusable pump drive component when the system is in operation. In such embodiments, the occluding mechanism can be attached to the reusable component and can be used to block fluid flow to and from the pumping cartridge. In some embodiments, the occluding member can comprises a spring plate which can create a force to occlude tubing when in a relaxed, unbent configuration, and which can be bent to unocclude the tubing. In some preferred embodiments, in a default configuration of the tube occluder mechanism (when no external force is applied to the occluding member) the tubes are occluded, so that the tube occluder mechanism provides a fail-safe configuration preventing fluid flow to and from a pumping cartridge to which the tubes can be connected.

A portable sling chair having a frame formed by a plurality of rigid axially elongated collapsible tubular frame members including a main frame member and a rear frame member connected for pivotal and axial sliding movement relative to each other, a collapsible front support member, a collapsible frame front support assembly, a collapsible frame rear support assembly, and at least one connecting member connecting the main frame member and the rear frame member to maintain the frame in a substantially static condition when the frame is resting on a supporting surface in setup condition. A rectangular panel made from flexible material is supported at its opposite ends by collapsible front and rear panel support members, extends therebetween, and defines contiguous chair seat and back portions when the frame is in its setup condition. All of the frame members are disposed in generally side-by-side relation to each other in the collapsed condition of the frame and form a compact bundle.

At least one collapsible tube for containing at least one product, comprising: external flexible thread form on flexible throat coupled to flexible shoulder. The flexible throat and flexible shoulder flatten to dispense essentially all the contained product. The flexible shoulder may include a raised detent for stopping a cap and / or raised flexible ribs to control the direction of flattening the flexible shoulder. At least one cap for the collapsible tube including an interior bulge or an interior rim, both for urging an included interior thread form to engage with an external flexible thread form included in the flexible throat, and further including a lower surface to engage with the raised detent, and / or internal ribs and / or internal posts to engage with the raised flexible ribs. Manufacturing methods for the collapsible tubes and caps, and these items as products of the manufacturing processes.

Apparatus for absorbing energy when impacted by a vehicle includes a backstop structure, a track extending to the backstop structure, a plurality of collapsible tubes supported by spaced independently movable supports on the track, and stabilizer structure stabilizing the supports in three planes during movement of the supports on the track and collapse of the tubes.

Collapsible tube head (100, 200, 300, 400) comprising a neck (103, 203, 303, 403) which is fitted, with a port (180, 280, 380, 480) and a shoulder (102, 202, 302, 402). The aforementioned head is fitted with a valve (110, 210, 310, 410) which is inserted in the neck of the said collapsible tube, the said valve comprising a sealing means (112, 212, 312, 412) which is connected to a ring support (115, 215, 315, 415) having an opening (122, 222, 322, 422), the said sealing means being maintained in the closed position of the said opening when the tube is not compressed, and being maintained in the open position when the tube is compressed. The inner surface of the tube is provided with a bore (105, 205, 305, 405) which is disposed close to the base of the said neck. The ring support is fixed to the bore by means of bonding, soldering or force fitting, and the said bore and ring support are preferably provided with complementary connection means, in particular a groove and rice grains.

The invention relates to a device for compensating for pressure drop in a product pipe through which a liquid flows, and a system comprising such a device. The device comprises a collapsible tube portion, which is connectible to the product pipe, and is characterised by a limiting means, which is adapted to counteract stretching of the tube portion in the circumferential direction and which is adapted to allow free collapsing of the tube portion.

The invention includes a method of using a cap containing an internal thread form matching an external thread form on a flexible throat for a collapsible tube enclosing at least one contained product. Twisting the cap engages the internal thread form and the external thread form. These collectively urge the cap and the flexible throat to seal the contained product into the collapsible tube. Deforming the flexible throat through squeezing the collapsible tube dispenses essentially all the product. The collapsible tube may preferably include an external thread form on a flexible throat coupled to a flexible shoulder. The external thread form mates to a cap with an internal thread form urging the flexible throat to seal against the cap when the cap is twisted onto the flexible throat. The flexible throat and flexible shoulder flatten to dispense essentially all of the product.