Unwinding a portion of a support helix that comprises a heating wire from a wall of a hose at an end of the hose; sleeving a length of heatshrink tubing at least partly onto the unwound portion of the support helix; heating the heatshrink tubing to shrink onto at least part of the unwound portion of the support helix; and at an end of the unwound portion, directly connecting the heating wire to an electrical contact of an electrical connector.

An undermold coupling to couple a hose to a hose fitting includes: a tubular portion to be inserted into a hose interface of the hose fitting; threads formed on an inner surface of the tubular portion to engage a support helix on an end of the hose as a set of threads; and a first grating comprising a first plurality of elongate portions to intermesh with a corresponding second plurality of elongate portions of a second grating of the hose interface, wherein the first plurality of elongate portions extend into a second plurality of slots defined by the second plurality of elongate portions, and the second plurality of elongate portions extend into a first plurality of slots defined by the first plurality of elongate portions.

The T-head coupler is intended to perform a cleaning-in-place of a blackwater tank inside a recreational vehicle, using a mixture of water and a cleaning agent. To accomplish this, the device includes a unique arrangement of ports and distribution channels, wherein the ports on the device are designed specifically to couple with ports commonly found in RVs and water sources. In addition, a container filled with a cleaning agent is attached to the bottom port on the device. When all attachments are made, a plurality of channels within the device direct incoming water to the container. The water mixes with the cleaning agent inside the container, forming a cleaning solution. The cleaning solution flows out of the device, using the pressure from the water source. The cleaning solution then flows from the RV port and into the blackwater tank, thereby cleaning the tank.

The T-head coupler is intended to perform a cleaning-in-place of a blackwater tank inside a recreational vehicle, using a mixture of water and a cleaning agent. To accomplish this, the device includes a unique arrangement of ports and distribution channels, wherein the ports on the device are designed specifically to couple with ports commonly found in RVs and water sources. In addition, a container filled with a cleaning agent is attached to the bottom port on the device. When all attachments are made, a plurality of channels within the device direct incoming water to the container. The water mixes with the cleaning agent inside the container, forming a cleaning solution. The cleaning solution flows out of the device, using the pressure from the water source. The cleaning solution then flows from the RV port and into the blackwater tank, thereby cleaning the tank.

A garden hose is provided, including a corrugated pipe and a braided layer. The corrugated pipe defines an axial direction. The braided layer is sleeved to the corrugated pipe. An inner diameter of the braided layer is smaller than an outer diameter of the corrugated pipe when the corrugated pipe and the braided layer are separated from each other, and the braided layer is radially stretched by and abutted against the corrugated pipe when being sleeved to the corrugated pipe.

A garden hose is provided, including a corrugated pipe and a braided layer. The corrugated pipe defines an axial direction. The braided layer is sleeved to the corrugated pipe. An inner diameter of the braided layer is smaller than an outer diameter of the corrugated pipe when the corrugated pipe and the braided layer are separated from each other, and the braided layer is radially stretched by and abutted against the corrugated pipe when being sleeved to the corrugated pipe.

A universal adapter for specialized valves, i.e. a coupling device can be connected to the outlet of a variety of water valves regardless of their model, shape or section of their outlet opening. The adapter is characterized by the presence of tightening and clamping elements on the opening, which are particularly simple and easy to manufacture and use, while retaining high reliability and additional fine adjustment capacity to the seal in case of deformations of the sealing elements.

A universal adapter for specialized valves, i.e. a coupling device can be connected to the outlet of a variety of water valves regardless of their model, shape or section of their outlet opening. The adapter is characterized by the presence of tightening and clamping elements on the opening, which are particularly simple and easy to manufacture and use, while retaining high reliability and additional fine adjustment capacity to the seal in case of deformations of the sealing elements.

A hose repair kit includes a retaining sleeve having a first opening to receive an end of a hose. There is a swivel coupling inserted into a second end of the hose retaining sleeve to engage with the hose. The swivel coupling includes a first annular member with an annular barb at one end and a socket to receive a key at a second end. There is an annular retaining ring groove with a retaining ring therein. A second annular member receives, within an internal bore having an annular recess, the first annular member and the retaining ring engages the annular recess to secure the first annular member to the second annular member. The surface of the bore is frusto-conically shaped allowing the retaining ring to be compressed as it travels into the bore until it reaches the annular recess and expands into and is seated in the annular recess.

A pipe joint includes a hollow joint main body; a nut that is screwed into the joint main body; a seal member that is mounted to inside of the joint main body; and a retainer that is placed between the joint main body and the nut and comprises a pawl portion engaged with a trough of a metal flexible pipe in a coupled state and a retainer locking portion caught and locked inside of the joint main body in the coupled state.