초록 ▼

A combination breakaway and swivel coupling for vehicle fueling systems is disclosed. The coupling includes a body having a swivel connection at one end and a breakaway connection at the other end. The swivel is directly connected to a vehicle fueling nozzle and the breakaway coupling is connected t

A combination breakaway and swivel coupling for vehicle fueling systems is disclosed. The coupling includes a body having a swivel connection at one end and a breakaway connection at the other end. The swivel is directly connected to a vehicle fueling nozzle and the breakaway coupling is connected to the supply hose of the fueling system. The swivel coupling is a ball-and-socket type coupling which permits the nozzle to be moved in all directions with respect to the supply hose for convenient positioning of the nozzle in the vehicle during fueling and hanging of the nozzle on the pump when the unit is not is use. The breakaway coupling automatically separates in the event that the vehicle drives away without removing the nozzle and prevents damage to the hose and the pump structure. Automatic shutoff valves close when the breakaway coupling releases to prevent pollution or hazardous spills of fuel. One embodiment utilizes a frangible connection which fractures and releases when breakaway occurs. Three other embodiments illustrate a resilient type connection which permits reassembly without replacement of any component parts.

대표청구항 ▼

A nozzle assembly for fueling vehicles, comprising: a nozzle having valve means for controlling the flow of fuel therethrough; a supply hose connected to a source of fuel under pressure; and a breakaway-swivel assembly directly attached to said nozzle and said hose, said breakaway-swivel assembly in

A nozzle assembly for fueling vehicles, comprising: a nozzle having valve means for controlling the flow of fuel therethrough; a supply hose connected to a source of fuel under pressure; and a breakaway-swivel assembly directly attached to said nozzle and said hose, said breakaway-swivel assembly including a body having a swivel portion and a breakaway portion, a swivel fitting attached at one end to one of said nozzle and said hose, said swivel fitting mating in a swivel connection at the other end with said swivel portion of said body, said swivel fitting cooperating with said swivel portion of said body to provide a fluidtight swivel connection allowing swivel movement of said nozzle with respect to said hose, a breakaway fitting attached at one end to the other of said nozzle and said hose, said breakaway fitting mating at the other end with said breakaway portion of said body, said breakaway fitting cooperating with said breakaway portion of said body to provide a fluidtight joint therebetween, said breakaway fitting and said breakaway portion being separable without breaking said hose when a predetermined separation force is applied to said nozzle and being swivelable with respect to said swivel fitting, and shutoff valve means in said breakaway-swivel assembly operable to close in response to separation of said breakaway portion and operating to prevent continued flow of fuel from said hose.