Hose has a body and a mouthpiece connected with the body. The mouthpiece is slidably placed against the body and is mounted at the end of the hose and includes a thickening. The ending has a circumferential stop placed in the axis of the mouthpiece. The stop has on its circumference a touch surface which is oriented inside, against the thickening on the mouthpiece. The mouthpiece is sealed by sealing ring against the body. The ring is placed in the sealing zone, or the mouthpiece is connected with the body by a flexible bellow. During the movement of the mouthpiece outside the touch surface and the outer surface of the hose in the zone with the thickening draw closer and the hose is held on the mouthpiece by the under pressure between the surface of the stop and the thickening.

Technologies are described for devices and methods to couple a hose to another hose or apparatus. The device may comprise a first side with at least two barbed fittings, each configured to insert into a flexible hose to create a waterproof seal. A diameter of each barbed fitting may increase in size from a first end of the first side to a second end of the first side. The device may comprise a second side with at least two male fittings, each configured to threadly interact with threads of a female fitting to create a waterproof seal. A diameter of each two male fitting may increase in size from a first end of the second side to a second end of the second side. The device may comprise a separator rim attached to the second end of the first side and to the second end of the second side.

A connector for a hose comprises a first connecting end, a second connecting end and a combining tube. The first connecting end has a main body with a cap shape, a neck portion and an inserting section at a bottom end of the main body, the inserting section has a screw hole connected through the main body and a plurality of engaging protrusions on a circumference of the neck portion. The second connecting end has a threaded section on a circumference thereof, a circular stopping neck internally defining an upper space and a lower space, a plurality of vertical ribs evenly disposed on a sidewall of the lower space, and a plurality of engaging grooves disposed on a top edge of the upper space. The combining tube has a threaded section on a circumference thereof and an enlarged flange at a bottom end.

A connector for a hose comprises a first connecting end, a second connecting end and a combining tube. The first connecting end has a main body with a cap shape, a neck portion and an inserting section at a bottom end of the main body, the inserting section has a screw hole connected through the main body and a plurality of engaging protrusions on a circumference of the neck portion. The second connecting end has a threaded section on a circumference thereof, a circular stopping neck internally defining an upper space and a lower space, a plurality of vertical ribs evenly disposed on a sidewall of the lower space, and a plurality of engaging grooves disposed on a top edge of the upper space. The combining tube has a threaded section on a circumference thereof and an enlarged flange at a bottom end.

A valve connector includes a connecting member, a threaded member, a joint member, and first and second connection assemblies. The connecting member is inserted into an axial hole of the threaded member to cause an abutting portion of the connecting member to enter into the axial hole. The joint member forms two threaded sections at two opposite ends thereof. The two threaded sections are alternatively detachably connected to a threaded portion of the threaded member so that a first seal ring of the first connection assembly and a second seal ring of the second connection assembly are alternatively removably abutted against the abutting portion for connecting a Schrader valve and a Presta valve.

A valve connector includes a connecting member, a threaded member, a joint member, and first and second connection assemblies. The connecting member is inserted into an axial hole of the threaded member to cause an abutting portion of the connecting member to enter into the axial hole. The joint member forms two threaded sections at two opposite ends thereof. The two threaded sections are alternatively detachably connected to a threaded portion of the threaded member so that a first seal ring of the first connection assembly and a second seal ring of the second connection assembly are alternatively removably abutted against the abutting portion for connecting a Schrader valve and a Presta valve.

The present invention relates to a connector (also referred to as a “nipple”) for connecting two super high-pressure PSI hoses. Existing nipples used in the mining industry are difficult to remove from adjacent hoses if they become damaged or worn out and have to be replaced. Additionally, existing nipples in the mining industry can become damaged if the connection between the nipple and adjacent hoses is loosened so that adjacent hoses can be examined or replaced. In a first embodiment, a nipple for connecting hoses is disclosed and comprises: a first end; a second end, spaced apart from the first end; a central bore between the first end and the second end; and a hexagonal portion positioned between the first end and the second end of the nipple. Preferably, the hexagon portion is positioned equidistant between the first end of the nipple and the second end of the nipple.

The present invention relates to a connector (also referred to as a “nipple”) for connecting two super high-pressure PSI hoses. Existing nipples used in the mining industry are difficult to remove from adjacent hoses if they become damaged or worn out and have to be replaced. Additionally, existing nipples in the mining industry can become damaged if the connection between the nipple and adjacent hoses is loosened so that adjacent hoses can be examined or replaced. In a first embodiment, a nipple for connecting hoses is disclosed and comprises: a first end; a second end, spaced apart from the first end; a central bore between the first end and the second end; and a hexagonal portion positioned between the first end and the second end of the nipple. Preferably, the hexagon portion is positioned equidistant between the first end of the nipple and the second end of the nipple.

A flexible connection pipe for a cryocooler includes a connection hose that includes a flexible pipe which is provided with a pipe end portion and a flexible tube which is provided with a tube end portion coming into close contact with the pipe end portion and which is inserted into the flexible pipe and a connection adapter that connects the connection hose to a constituent element of the cryocooler, the connection adapter being adjacent to the tube end portion and being fixed to the pipe end portion.

A flexible connection pipe for a cryocooler includes a connection hose that includes a flexible pipe which is provided with a pipe end portion and a flexible tube which is provided with a tube end portion coming into close contact with the pipe end portion and which is inserted into the flexible pipe and a connection adapter that connects the connection hose to a constituent element of the cryocooler, the connection adapter being adjacent to the tube end portion and being fixed to the pipe end portion.