Abstract: A mounting mechanism (100), to enable hitching a tool (101) with the frame of a utility vehicle, comprises front hooks (102), a locking mechanism (104), a lifting cradle assembly (106), and a frame attachment mechanism (108). The front hooks (102) and the locking mechanism is configured to detachably engage the front and the rear portion of the tool (101) respectively. The cradle assembly (106) is configured to be operatively engaged with the front hooks (102) and the locking mechanism (104). The frame attachment mechanism (108) is configured to be pivotally coupled to the lifting cradle assembly (106). The locking mechanism (104) is configured to be operated by lifting the cradle assembly (106) via pivotal motion between the cradle and the frame attachment mechanism (108) under force generated by the vehicle (1000) to hitch and lock the tool (101) with the frame of the vehicle (1000).

Abstract: A water-jet propulsion unit includes a body, an impeller for moving water, the impeller disposed in an impeller tunnel, an impeller shaft for driving the impeller, a first bearing housing to support the impeller shaft on the body, and a jet nozzle for forming a water jet. The body comprises a shaft opening for the impeller, a flow duct having a first contact surface, an inlet opening, and an outlet opening, the planes of which are at an angle ? relative to each other. The impeller tunnel has a first end comprising a planar second contact surface and a second end comprising a planar third contact surface to seal the impeller tunnel between the body and the jet nozzle. The second and third planar contact surfaces of the impeller tunnel are arranged at an angle relative to each other. The impeller shaft is adapted for alternative types of installation by turning the impeller tunnel through 180° about the rotational axis of the impeller shaft.

Abstract: A power take-off PTO connection mechanism (100) for mid mounted tools (101) of a utility vehicle (1000 includes three main assembly members: a frame attachment mechanism (108), a vertical moving frame (or cradle) (106), and a PTO assembly (128). The frame attachment mechanism (108) is fixed to the frame of the vehicle or tractor (1000). The PTO connection mechanism (100) of the present invention helps is easy and quick connection of the PTO shaft to a variety of tools (101) with the tractor. The PTO shaft remains in continuous contact with the tool power input once it is moved in an engaged position.

Abstract: A mounting mechanism (100), to enable hitching a tool (101) with the frame of a utility vehicle, comprises front hooks (102), a locking mechanism (104), a lifting cradle assembly (106), and a frame attachment mechanism (108). The front hooks (102) and the locking mechanism is configured to detachably engage the front and the rear portion of the tool (101) respectively. The cradle assembly (106) is configured to be operatively engaged with the front hooks (102) and the locking mechanism (104). The frame attachment mechanism (108) is configured to be pivotally coupled to the lifting cradle assembly (106). The locking mechanism (104) is configured to be operated by lifting the cradle assembly (106) via pivotal motion between the cradle and the frame attachment mechanism (108) under force generated by the vehicle (1000) to hitch and lock the tool (101) with the frame of the vehicle (1000).

Abstract: A water-jet propulsion unit includes a body, an impeller for moving water, the impeller disposed in an impeller tunnel, an impeller shaft for driving the impeller, a first bearing housing to support the impeller shaft on the body, and a jet nozzle for forming a water jet. The body comprises a shaft opening for the impeller, a flow duct having a first contact surface, an inlet opening, and an outlet opening, the planes of which are at an angle ? relative to each other. The impeller tunnel has a first end comprising a planar second contact surface and a second end comprising a planar third contact surface to seal the impeller tunnel between the body and the jet nozzle. The second and third planar contact surfaces of the impeller tunnel are arranged at an angle relative to each other. The impeller shaft is adapted for alternative types of installation by turning the impeller tunnel through 180° about the rotational axis of the impeller shaft.

Abstract: A frame of a water jet propulsion unit arranged to be installed and sealed into an installation opening of a boat. The water-jet propulsion unit includes an impeller and the boat has a counter-sealing surface to which the frame is attached. The frame includes a flow channel to guide water to the impeller. The flow channel has a top with a maintenance opening. The maintenance opening is positioned to permit servicing the impeller. A first sealing surface forms a first closed loop to attach the water-jet propulsion unit tightly to the counter-sealing surface of the boat. A second sealing surface forms a second closed loop arranged to attach the water-jet propulsion unit to the boat. The first and second closed loops permit the maintenance opening of the frame to be alternatively locatable respectively outside or inside the stern of the boat in dependence on alternative configurations of the installation opening of the boat.

Abstract: A frame of a water jet propulsion unit arranged to be installed and sealed into an installation opening of a boat. The water-jet propulsion unit includes an impeller and the boat has a counter-sealing surface to which the frame is attached. The frame includes a flow channel to guide water to the impeller. The flow channel has a top with a maintenance opening. The maintenance opening is positioned to permit servicing the impeller. A first sealing surface forms a first closed loop to attach the water-jet propulsion unit tightly to the counter-sealing surface of the boat. A second sealing surface forms a second closed loop arranged to attach the water-jet propulsion unit to the boat. The first and second closed loops permit the maintenance opening of the frame to be alternatively locatable respectively outside or inside the stern of the boat in dependence on alternative configurations of the installation opening of the boat.