Abstract: A power operated pressure washer having a high pressure liquid supply hose with an inlet fitting formed with an axial stem having a central liquid passageway that can be connected to a pressure washer outlet fitting by a threaded retaining ring. As a feature of this invention, the retaining ring can be unscrewed from the pressure washer outlet for permitting the dissipation and venting of high pressure buildup within the hose while the retaining ring safely retains the hose fitting on the outlet. In one embodiment, the stem has a pair of axially spaced annular sealing members adaptable for sealing engagement with relatively smaller and larger size pressure washer outlets and the stems is formed with a transverse passageway for venting liquid from the central stem passageway around one of the sealing members, as an incident to unscrewing of the retaining ring, while the other sealing member remains in sealed engagement with the pressure washer outlet fitting.

Abstract: A fluid operated wash brush is provided. The wash brush includes a casing having a downwardly opening top cover. The casing includes a liquid inlet for connection to a fluid supply. The wash brush also includes a rotary wash brush and a mounting shaft supported by the casing for relative rotation on which the rotary wash brush is carried. A retention mechanism is carried on a distal end of the mounting shaft for releasable engagement and disengagement with the rotary wash brush.

Abstract: A coupling fitting for high pressure hose is provided. The coupling fitting includes a stem portion made of metallic material for connection to the high pressure hose. A coupling head made of a non-metallic material is connected to an end of the stem portion. The coupling head is configured for connection with a complementary fitting.

Abstract: A fluid operated wash brush is provided. The wash brush includes a casing having a downwardly opening top cover. The casing includes a liquid inlet for connection to a fluid supply. The wash brush also includes a rotary wash brush and a mounting shaft supported by the casing for relative rotation on which the rotary wash brush is carried. A retention mechanism is carried on a distal end of the mounting shaft for releasable engagement and disengagement with the rotary wash brush.

Abstract: A power operated pressure washer having a high pressure liquid supply hose with an inlet fitting formed with an axial stem having a central liquid passageway that can be connected to a pressure washer outlet fitting by a threaded retaining ring. As a feature of this invention, the retaining ring can be unscrewed from the pressure washer outlet for permitting the dissipation and venting of high pressure buildup within the hose while the retaining ring safely retains the hose fitting on the outlet. In one embodiment, the stem has a pair of axially spaced annular sealing members adaptable for sealing engagement with relatively smaller and larger size pressure washer outlets and the stems is formed with a transverse passageway for venting liquid from the central stem passageway around one of the sealing members, as an incident to unscrewing of the retaining ring, while the other sealing member remains in sealed engagement with the pressure washer outlet fitting.

Abstract: A coupling for connecting flexible hoses together is provided. The coupling includes male and female fittings both of which include integral shank and quick disconnect coupling portions. The shank portions of the male and female fittings each being insertable at least partially in a respective one of the flexible hoses for securing the fittings to the hoses. The coupling portion of the male fitting including a stem and the coupling portion of the female fitting being configured to receive and non-threadably engage the stem of the male fitting. The coupling portion of the male fitting including a collar movable between locked and unlocked positions such that in the locked position the male and female fittings are securely engaged and in the unlocked position the stem portion of male fitting can be selectively decoupled from the coupling portion of the female fitting.

Abstract: A universal pressure washer extension/replacement hose adapted for use with pressure washers which have different diameter liquid discharge outlets. The extension hose has identical connecting fittings at its opposite ends, one of which can be coupled in sealed relation to a pressure washer outlet of either of two known sizes and the other of which is connectable to a spray gun hose through a universal adaptor having connecting chambers of said two known sizes.

Abstract: A universal pressure washer extension/replacement hose adapted for use with pressure washers which have different diameter liquid discharge outlets. The extension hose has identical connecting fittings at its opposite ends, one of which can be coupled in sealed relation to a pressure washer outlet of either of two known sizes and the other of which is connectable to a spray gun hose through a universal adaptor having connecting chambers of said two known sizes.