QUICK-CONNECTING, SELF-SEALING FLEXIBLE HOSE NOZZLE

• US 3,612,409 A
• Filed: 10/20/1969
• Issued: 10/12/1971
• Est. Priority Date: 10/20/1969
• Status: Expired due to Term

• Current Assignee: Raymond C. Henning
• Original Assignee: Raymond C. Henning
• Inventors: Henning, Raymond C.
• Primary Examiner(s): Wood, Jr., M. Henson
• Assistant Examiner(s): Thieme, Reinhold W.
• Application Number:
  US04/867,557
• Time in Patent Office: 722 Days
• Field of Search: 239/DIG.19,602,601,599,597 222/569,570 285/260,DIG.22
• US Class Current: 239/602
• CPC Class Codes: B05B 1/00 Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means B05B3/00, B05B5/00, B05B7/00 take precedence; nozzles for baths with water or gas jets A61H33/00, e.g. A61H33/6063, A61H33/6021, A61H33/026 or A61H33/027; Nozzles specially adapted for fire-extinguishing A62C31/02; Nozzles for generating high velocity abrasive fluid jets B24C5/04; nozzles for jet-ink printing mechanisms B41J2/135; nozzles for filling containers B65B39/00; nozzles for liquid-dispensing, e.g. in vehicle service stations B67D7/42
• CPC Class Codes: B05B 15/65 Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
• CPC Class Codes: Y10S 239/19 Nozzle materials
• CPC Class Codes: Y10S 285/921 Snap-fit

Abstract

An elongated hose nozzle of resilient material adapted to be attached quickly and conveniently to the male-threaded coupling at one end of a garden hose is the essence of this disclosure. The nozzle has an inner end and an outer end. The inner end has a cylindrical periphery adapted to fit through the opening in the coupling, which includes an inturned flange terminating in a circular opening. A bead of torus form circumscribes the nozzle at its inner end and extends radially outwardly to a dimension greater than that of the cylindrical periphery of the nozzle. A frustoconical passage is formed longitudinally through the nozzle with its greater dimension at the inner end, thus forming a thin wall at the inner end of the nozzle. The thin wall permits the bead and inner end of the nozzle to be resiliently collapsed by hand to a smaller diameter for insertion through the circular opening and past the internal flange into the coupling, where the thin wall of the nozzle is released and resiliently expands towards its normal shape bringing it into locking engagement with the flange and opening in the coupling.

Claims

1. A hose nozzle for use on a hose having a threaded male end coupling with a terminal annular flange radially inturned to form a coupling output opening, comprising:

an elongated body of resiliently flexible material having an inner end and an outer end, said body having an outer surface of substantially the same size and contour as said coupling output opening;

an annular bead formed integral with the outer surface adjacent the inner end of said body and extending radially outward therefrom to form a periphery of substantially the same size and contour as the inside of said coupling;

means defining a bore disposed coaxially through said body from said inner end to said outer end, said bore being tapered to form an inner end wall having a relatively thin radial thickness, said inner end wall being sufficiently thin to permit manual deformation of said inner end radially inward to reduce said inner end and bead periphery to a size and shape smaller than the size and shape of said coupling output opening and thereby permit insertion of said inner end and bead into said coupling through said coupling output opening, and said outer end wall being sufficiently thick to resist substantial manual deformation;

means defining an orifice interconnected with said bore-defining means adjacent the outer end of said body, said orificedefining means being shaped to impart predetermined characteristics to a stream of fluid passing therethrough; and

means defining an annular impinging surface on the inner end of said body flaring radially outwardly and axially inwardly from the innermost end of said bore into confluence with the peripheral surface of said annular bead, saId impinging surface being disposed for impingement thereupon by fluid passing through said coupling in a direction which forces said annular bead radially outwardly and axially outwardly into gripping engagement with the inside of said coupling and annular flange.

2. A hose nozzle of the type described in claim 1, in which:

said body material, inner end wall, and bead have correlated characteristics which cooperate to permit manual deformation of said inner end and bead to a size and configuration sufficient to permit insertion of said inner end and bead into said coupling through said coupling output opening, resilient reforming to engage the inside of said coupling, and further radially outward resilient expansion upon exertion of pressure from fluid passing through said coupling and bore-defining means; and

said bore-defining means is so tapered as to restrict the flow of fluid therethrough and cause the exertion of pressure from said fluid upon said inner end wall and bead.

3. A hose nozzle of the type described in claim 2, in which:

said body outer surface is cylindrical over its entire length and has a diameter substantially the same as the diameter of said coupling output opening, which is also circular;

said bead is torudial in shape and has a circular periphery of substantially the same diameter as the diameter of said coupling, which is cylindrical; and

said impinging surface has a radially outermost periphery of substantially the same size and contour as said body outer surface.

4. A hose nozzle of the type described in claim 2, in which:

said outer end wall is sufficiently thick to resist substantial manual deformation, but sufficiently thin to permit slight manual distortion of said orifice-defining means.

5. A hose nozzle of the type described in claim 1, in which:

said body outer surface is cylindrical over its entire length and has a diameter substantially the same as the diameter of said coupling output opening, which is also circular;

said bore-defining means defines a frustoconical passage having its larger end disposed adjacent the inner end of said body and its smaller end disposed adjacent the outer end of said body and having a taper correlated with the resiliency characteristics and diameter of said bead and body to provide an inner end wall which is sufficiently thin and resiliently flexible to permit substantial manual deformation of said inner end and bead to the degree necessary to allow passage of said inner end and bead through said coupling output opening, resilient reformation thereof into intimate contact with the inner surface of said coupling, and resilient expansion thereof into sealing engagement with said coupling output opening and the inner surface of said coupling upon exposure to back pressure provided by the restriction of the flow of fluid through said passage resulting from said taper which is sufficiently thick and rigid to prevent substantial manual deformation of said outer end but permit slight manual distortion of said orifice-defining means; and

said impinging surface is generally curvilinear and has a radially outermost periphery of substantially the same size and contour as said body outer surface.