| 主权项 |
1. An apparatus providing relative rotation between a garden hose and a hand-held nozzle attached to a leading, water-discharging end of said garden hose, comprising:
a nozzle main body; a fluid connection member having internal threads formed therein, said internal threads adapted to releasably engage a leading end of an externally threaded garden hose; a lower saw gate mounted within a hollow interior of said fluid connection member and secured to said fluid connection member for conjoint rotation therewith; a plurality of lower saw gate teeth formed in said lower saw gate and projecting upwardly therefrom; an upper saw gate mounted within a hollow interior of said nozzle main body and secured to said nozzle main body for conjoint rotation therewith; a plurality of upper saw gate teeth formed in said upper saw gate and depending therefrom; an upper saw gate spring disposed in bearing relation with a predetermined bias against said upper saw gate when said upper saw gate spring is in repose so that said upper saw gate teeth engage said lower saw gate teeth and prevent relative rotation between said upper saw gate and said lower saw gate; a water inlet channel formed in a hollow interior of the pistol grip part of the nozzle main body and a water outlet channel formed in the hollow interior of the barrel part of the nozzle main body; said water inlet channel being disposed in open fluid communication with said water outlet channel in substantially normal relation thereto; a nozzle spray rod positioned within said water outlet channel; a nozzle spray rod actuator spring that urges said nozzle spray rod into a position of repose; a recess formed in said nozzle spray rod, said recess including a ramp extending from a radially innermost point of said recess to a radially outermost point of said recess; an upper saw gate lifter in the form of an elongate, straight rod positioned within said inlet water channel, said upper saw gate lifter having a lower end secured to said upper saw gate; a lifter roller surmounting said upper saw gate lifter, said lifter roller engaging said nozzle spray rod and being positioned within said radially innermost point of said recess when said upper saw gate spring is in repose and when said nozzle spray rod bias means is in repose; said lifter roller rolling up said ramp, traveling from said radially innermost point of said recess to said radially outermost point, when said nozzle spray rod bias means is compressed; said upper saw gate lifter being lifted from its position of repose as said lifter roller rolls up said ramp, said displacement of said upper saw gate lifter compressing said upper saw gate bias means and causing said upper saw gate teeth to disengage from said lower saw gate teeth so that said hose returns to a position of repose under its inherent bias when said upper saw gate teeth and lower saw gate teeth are disengaged from one another; said upper saw gate lifter returning to its position of repose under the bias of said upper saw gate bias means when said nozzle spray rod actuator spring is decompressed and returned to its position of repose; whereby no water flows through said water inlet channel and said water outlet channel when said upper saw gate bias means and said nozzle spray rod actuator spring are in their respective positions of repose; whereby water flows through said water inlet channel and said water outlet channel when said upper saw gate bias means and said nozzle spray rod bias means are under compression; and whereby kinks cannot form in said garden hose when water is flowing through said hand-held nozzle, or when water is not flowing but said actuator spring is compressed, because the upper and lower saw gate teeth are disengaged from one another and the fluid connection member is free to rotate relative to said nozzle main body; and whereby kinks that are formed in said garden hose are released by an inherent bias of the garden hose when said pivotally mounted handle is pressed to activate water flow. |
