Flushing T for heater hose

• US 4,238,131 A
• Filed: 06/12/1978
• Issued: 12/09/1980
• Est. Priority Date: 06/12/1978
• Status: Expired due to Term

• Current Assignee: Marvin G. Cleveland
• Original Assignee: Marvin G. Cleveland
• Inventors: Cleveland, Marvin G.
• Primary Examiner(s): Arola, Dave W.
• Application Number:
  US05/914,502
• Time in Patent Office: 911 Days
• Field of Search: 285/DIG. 2, 285/150, 285/8, 285/156, 285/423, 285/38, 134/166 R, 134/166 C, 134/167 C, 134/168 C, 134/169 C, 134/22 C, 134/24, 123/41.42, 123/41.15, 156/73.5
• US Class Current: 285/38
• CPC Class Codes: B29C 65/00 Joining or sealing of preformed parts , e.g. welding of plastics materials; Apparatus therefor general aspects of processes or apparatus for joining preformed parts B29C66/00; using porous material formed by internal pressure generated therein for joining preformed parts B29C44/1228, B29C44/326
• CPC Class Codes: B29C 65/0672 Spin welding
• CPC Class Codes: B29C 66/114 Single butt joints
• CPC Class Codes: B29C 66/1222 comprising at least a lapped joint-segment
• CPC Class Codes: B29C 66/1224 comprising at least a butt joint-segment
• CPC Class Codes: B29C 66/131 Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
• CPC Class Codes: B29C 66/1312 Single flange to flange joints, the parts to be joined being rigid the parts to be joined being flexible B29C66/133
• CPC Class Codes: B29C 66/30321 making use of protrusions belonging to at least one of the parts to be joined
• CPC Class Codes: B29C 66/5223 for forming corner connections or elbows, e.g. for making V-shaped pieces
• CPC Class Codes: B29C 66/52241 with two right angles, e.g. for making T-shaped pieces
• CPC Class Codes: B29C 66/52293 said stop being external
• CPC Class Codes: B29C 66/52296 said socket comprising sealing elements, e.g. gaskets
• CPC Class Codes: B29C 66/52297 said socket comprising slip-off prevention means B29C66/52296 takes precedence
• CPC Class Codes: B29C 66/52298 said socket being composed by several elements
• CPC Class Codes: B29C 66/53243 said spouts comprising flanges
• CPC Class Codes: B29C 66/5344 said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends B29C66/5346 takes precedence
• CPC Class Codes: B29C 66/612 Making circumferential joints
• CPC Class Codes: B29L 2031/246 T-joints
• CPC Class Codes: F01P 11/06 Cleaning in general B08B; Combating corrosion in general C23F
• CPC Class Codes: F01P 2011/065 Flushing
• CPC Class Codes: F16L 25/12 : Joints for pipes being spaced apart axially
• CPC Class Codes: F16L 47/04 : with a swivel nut or collar engaging the pipe
• CPC Class Codes: F16L 47/32 : Branch units, e.g. made in one piece, welded, riveted
• CPC Class Codes: F16L 55/1152 : fixed by screwing or by means of a screw-threaded ring
• CPC Class Codes: Y10S 285/901 : Cap closures

Abstract

A flushing fitting for attachment into the heater hoses of an automotive engine and having a base conduit telescopically connected to the heater hose, a connecting duct protruding at one side of the base conduit and defining an out-turned flange against which the threaded insert end of a garden hose may bear for sealing, a sleeve embracing the connecting duct and threaded onto the threaded insert end of the garden hose and drawing the garden hose tightly against the stationary connecting duct, and a circular closure with external threads thereon and turned into the sleeve and against the flange of the connecting duct for sealing and closing the fitting in closed condition.

Claims

1. A flushing fitting for attachment into the heater hose of an automotive engine to facilitate flushing the cooling system with water from a garden hose,

comprising a rigid base conduit of rigid plastic and having opposite ends for telescopic attachment to the ends of the heater hose and providing flow communication to and between such ends, the conduit also having an intermediate portion and a rigid connecting duct extending transversely of the base conduit and connecting thereto at said intermediate portion in flow communicating relation, the rigid plastic base conduit having a transversely extending nipple formed integrally thereof and projecting transversely of the base conduit at the intermediate portion thereof to provide flow communication into the interior of the base conduit, the connecting duct having a sleeve-shaped neck portion telescopically embracing the nipple in tight fitting relation, the sleeve-shaped neck portion having an end adjoining the base conduit and welded thereto, and the nipple having an outer end and outer periphery welded entirely around the inner periphery of the sleeve-shaped neck portion, the connecting duct having an outer end spaced from the base conduit and defining an out-turned annular flange with a front face to bear against the end of the garden hose, and also a rear face confronting and spaced from the base conduit, and

a rigid and rotatable connecting sleeve embracing the connecting duct and having a threaded interior extending past the flanged end of the connecting duct for connection to the threaded insert end of such a garden hose, the sleeve having an in-turned peripheral lip confronting and bearing against the rear face of the out-turned annular flange of the connecting duct from the connecting sleeve revolving relative to the connecting duct to draw the insert end of the garden hose tightly against the flange of the connecting duct and in sealing relation therewith.

2. The flushing fitting according to claim 1 and the base conduit having a plurality of external and outwardly protruding annular ribs on the periphery thereof for restraining endwise movement of the heater hose relative to the base conduit, the annular ribs at each end of the base conduit being in two adjacent groups, the group of ribs closest to the terminal end of the base conduit being smaller in diameter than the group of ribs spaced from the terminal end of the duct.

3. The flushing fitting according to claim 1 and a circular, threaded closure in the connecting sleeve and being circular and having a handle on the top side thereof and extending across the entire diameter of the circular closure.

4. A flushing fitting for attachment into the heater hose of an automotive engine to facilitate flushing the cooling system with water from a garden hose,

comprising a rigid base conduit of rigid plastic and having opposite ends for telescopic attachment to the ends of the heater hose and providing flow communication to and between such ends, the conduit also having an intermediate portion and a rigid connecting duct extending transversely of the base conduit and connecting thereto at said intermediate portion in flow communicating relation, the rigid plastic base conduit has a transversely extending nipple formed integrally thereof and projecting transversely of the base conduit at the intermediate portion thereof to provide flow communication into the interior of the base conduit, the connecting duct having a sleeve-shaped neck portion telescopically embracing the nipple in tight fitting relation, the sleeve-shaped neck portion having an end adjoining and being spin welded to the base conduit, and the nipple having an outer end adjoining and being spin welded to the connecting conduit adjacent said sleeve-shaped neck portion, the telescopically related sleeve-shaped neck portion and nipple providing a double-walled connection for the connecting conduit to the base conduit, the connecting duct having an outer end spaced from the base conduit and defining an out-turned annular flange with a front face to bear against the end of the garden hose, and also a rear face confronting and spaced from the base conduit, and

a rigid and rotatable connecting sleeve embracing the connecting duct and having a threaded interior extending past the flanged end of the connecting duct for connection to the threaded insert end of such a garden hose, the sleeve having an in-turned peripheral lip confronting and bearing against the rear face of the out-turned annular flange of the connecting duct from the connecting sleeve revolving relative to the connecting duct to draw the insert end of the garden hose tightly against the flange of the connecting duct and in sealing relation therewith.