US 4,185,781 AGranted

Quick-disconnect nozzle connection

AssigneeSpraying Systems Co.

InventorEdward J. O'Brien

Life of this patent

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Abstract

A quick-disconnect nozzle connection for a spraying tip and a nozzle body. The spraying tip is defined by a cylindrical inlet stem at one end of the tip, an interior fluid passage communicating from the inlet of the cylindrical stem through the tip to an orifice, at least one arcuate section extending radially outwardly from the cylindrical surface of the stem, and a recess formed in each arcuate section. The nozzle body is adapted to be connected to a source of fluid and defines an interior fluid passage, a first cylindrical chamber adapted to receive the cylindrical stem of the spraying tip, a second cylindrical chamber of larger diameter than the first cylindrical chamber and in axial alignment with the first chamber and further adapted to receive each arcuate section of the spraying tip, and retention segments extending radially inwardly over the second chamber, each of the retention segments adapted to matingly engage a corresponding recess in an arcuate section to connect the spraying tip and nozzle body in a locked and precise angular relationship. A spring disposed between the nozzle body and spraying tip maintains the body and tip in the locked relationship. Methods of manufacture for the tip and body are also disclosed.

A quick disconnect nozzle comprising a spraying tip having a cylindrical inlet stem at one end of said tip, an enlarged spray head formed on the other end of said tip including a deflector portion adapted to deflect spray in a direction substantially perpendicular to the axis defined by said cylindrical stem, said spray head of generally larger diametric dimension than said stem including a bottom surface defining stop means for said spraying tip when said stem is inserted into a nozzle body and an interior fluid passage communicating from one end of said stem through said tip to said spray head;

locking means disposed on said stem comprising a pair of arcuate sections extending radially outwardly from the surface of said stem and a recess formed in each arcuate section;
a nozzle body adapted to be connected to a source of fluid including an interior fluid passage defined therein, a first chamber adapted to receive said stem of said spraying tip, a second chamber adapted to receive the arcuate sections of said locking means for rotation therein, and a pair of opposed retention means extending radially inwardly along a diameter of said second chamber adapted to engage corresponding recesses in said arcuate sections of said locking means, said arcuate sections insertable past said opposite retention means into said second chamber when oriented in one position and fully rotatable in said second chamber when said stem is fully inserted into said first chamber to a position at which said recesses in each of said arcuate sections matingly engage one of said pair of retention means upon release of said spraying tip;
resilient biasing means disposed between said spraying tip and said nozzle body to urge said tip and body away from each other for retaining said tip and said body in a locked and precise angular relationship;
and,
sealing means disposed between the cylindrical stem of said spraying tip and said first chamber of said nozzle body to prevent fluid leakage between said tip and body.

2 more elements

Facts

Application

05/869,421Filed 16 Jan 1978

Granted

29 Jan 1980

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

F16L 37/252
The coupling being co-axial with the pipe: the male part having lugs on its periphery penetrating into the corresponding slots provided in the…
B05B 15/65
Arrangements for mounting, supporting or holding spraying apparatus: mounting arrangements for fluid connection of the spraying apparatus or its…
F16L
Pipes
B05B
Spraying apparatus

Abstract

Claims1