Pipe joints or couplings – Nonmetal to metal – Internal member
Reexamination Certificate
1999-12-06
2001-10-30
Browne, Lynne H. (Department: 3629)
Pipe joints or couplings
Nonmetal to metal
Internal member
C285S258000
Reexamination Certificate
active
06308993
ABSTRACT:
FIELD OF THE INVENTION
This invention pertains generally to hose couplers, and more particularly to composite male hose couplers for the ends of flexible, resilient hoses of the so-called garden hose type.
BACKGROUND OF THE INVENTION
Garden hoses made of various forms of rubber and plastic are generally provided with so-called male and female end couplers by which the hoses are connected to one another, to faucets or spigots supplying liquid thereto, and to nozzles, sprinklers, etc. for dispensing the liquid. On currently marketed hoses such couplers, which are permanently affixed to the hose ends during production of the hose assembly, commonly comprise threaded male and female couplers, made of brass or the like, which include a ferrule placed over the outer end of the hose. A cylindrical tail piece, again of brass or the like, is introduced into the hose end and permanently expanded outwardly to urge the hose into liquid-tight engagement with the ferrule.
The male couplers fabricated of strip metal have certain disadvantages. These metallic couplers have been found to be relatively costly to fabricate and assemble. Both the material itself and the forming process are comparatively expensive. In order to economically manufacture the metallic couplers, the couplers have been stamped from annealed brass stock. Such metallic couplers are also susceptible to being permanently deformed or crushed under heavy loads, such as when run over by an automobile tire, and thus made unusable.
Accordingly, it would be desirable to employ the combined benefits of both the cylindrical tail piece formed of brass strip material, for example, for reception within the end of a garden hose; and a threaded fitting formed of machineable stock.
SUMMARY OF THE INVENTION
In accordance with the invention, there is provided a composite male hose coupler comprised of a stamped metallic tail piece to which an externally threaded metallic fitting has been integrally joined. The externally threaded metallic fitting or collar is typically formed of a machineable brass stock having high resistance to compression. The metallic tail piece is typically preferably formed of annealed brass stock by a stamping operation. The resultant assembly comprises a cylindrical collar having threads formed on at least a portion of the outer surface thereof, the threads terminating at one end of the collar, and an annular inwardly opening channel formed at the opposite end of the collar; and a metallic tail piece including a first cylindrical portion and a second cylindrical portion joined to the first portion by a radially outwardly extending annular flange and the second portion terminating in a radially outwardly extending lip, wherein the annular flange is snugly received within the channel of the collar and the lip receives the termination of the threads of the collar.
The composite coupling may be affixed to the hose end by inserting the first cylindrical portion of the metallic tail piece into the end of the hose and placing a ferrule around the outer circumference of the hose end. The cylindrical portion of the tail piece is then expanded in the conventional manner so that the hose is urged into liquid-tight engagement with the ferrule.
REFERENCES:
patent: 2268142 (1941-12-01), Lusher et al.
patent: 2377010 (1945-05-01), Howard
patent: 2686066 (1954-08-01), Paquin
patent: 4288110 (1981-09-01), Grenell
patent: 4690435 (1987-09-01), Manning et al.
patent: 4850620 (1989-07-01), Puls
patent: 4962582 (1990-10-01), Puls
patent: 5141262 (1992-08-01), Bartholomew
patent: 5295718 (1994-03-01), Bartholomew
patent: 5890748 (1999-04-01), Phillips et al.
patent: 6219917 (2001-04-01), Peed et al.
Bochna David E.
Browne Lynne H.
Fraser Donald R.
Winzeler Stamping Company
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