Pipe End Connecting Structure

• US 20110062705A1
• Filed: 08/10/2010
• Published: 03/17/2011
• Est. Priority Date: 09/14/2009
• Status: Abandoned Application

• Current Assignee: Illinois Tool Works Inc.
• Original Assignee: Illinois Tool Works Inc.
• Inventors: Wong, Chong B., Davis, Michael W.
• Application Number:
  US12/853,378
• Publication Number:
  US 20110062705A1
• Time in Patent Office: Days
• US Class Current: 285/320
• CPC Class Codes: F16L 25/0072 Joints for pipes of dissimilar materials non-disconnectible joints for pipes of dissimilar materials F16L13/007; joints between metal and plastic pipes F16L47/24

Abstract

A pipe end connecting structure has a floater received in the end of a pipe with a head of the floater against the end of the pipe. A locking device connectable to another structure includes a portion inserted into the floater and locked thereto. The locking device restricts withdrawal of the floater from the pipe, and the floater restricts withdrawal of the locking device from the floater.

Claims

1. A pipe end connecting structure, comprising:

a floater received in an end of a pipe, said floater having a deflectable protrusion for secure said floater in the pipe and a floater head at the end of the pipe, said head having a shaped opening;

said deflectable protrusion being deflectable to a deflected position for insertion into the pipe;

a locking device having a locking head shaped for insertion into said shaped opening of said floater; and

said locking head being rotatable relative to said floater from a locking head position not limiting deflection of said deflectable protrusion to a second head position that limits deflection of said deflectable protrusion to said deflected position.

2. The connecting structure of claim 1, said locking head including an annular shoulder engaging said head of said floater.

3. The connecting structure of claim 1, said floater having an aperture through said floater head and slots contiguous with said aperture.

4. The connecting structure of claim 3, said locking head including a post and wings insertable into said aperture and said slots.

5. The connecting structure of claim 4, said floater and said locking head having cooperating structures inhibiting relative rotation between said locking head and said floater away from said second head position.

6. The connecting structure of claim 4, said wings having exposed proximal ends movable beneath said floater head, and said floater head having ramps engaging said proximal ends of said wings for drawing said locking head and said floater toward one another upon relative rotation toward said second head position.

7. The connecting structure of claim 1, said floater having two deflectable legs and a deflectable protrusion on each said leg.

8. The connecting structure of claim 7, said floater having an aperture through said floater head and opposed slots contiguous with said aperture.

9. The connecting structure of claim 8, said locking head including a post and opposed wings insertable into said aperture and said slots.

10. The connecting structure of claim 9, said second locking head position having said wings aligned between said legs.

11. The connecting structure of claim 9, said wings having elongated outer portions engaged against said legs in said second head position.

12. The connecting structure of claim 1, said locking head including two anti-rotation snaps, and said floater including two stops engaging said anti-rotation snap in said second head position.

21. The pipe end connection of claim 9, said locking device having an anti-rotation snap engaging a stop on said floater in said rotated position.

13. A pipe end connection, comprising:

a floater received in a pipe end and including a protrusion wider than an axial bore of the pipe, said protrusion engaging a hole in the side of the pipe;

a locking device received by the floater and being positionally adjustable from an inserted position to a locked position relative to the floater to inhibit withdrawal of the protrusion from the hole; and

an anti-rotation snap and a stop on said locking device and said floater cooperatively associated to engage with one another and inhibit rotation from said locked position to said inserted position.

14. The pipe end connection of claim 13, said floater having a head engaging an end edge of the pipe, and first and second legs extending from said head received in said pipe, each leg having a protrusion thereon extending into a hole in the pipe.

15. The pipe end connection of claim 14, said locking device having a post and opposed wings extending from said post;

and said floater having an aperture with contiguous slots defined in said head, said aperture and said slots receiving said post and said wings in said inserted position.

16. The pipe end connection of claim 15, said wings having proximal ends engaging the inside of said floater in said locked position.

17. The pipe end connection of claim 16, said locking device having a locking head surrounding said floater head and the end of said pipe.

18. A pipe end connection, comprising:

a pipe having an axial bore, an open end having an end edge, and a hole in the side thereof;

a floater secured in said axial bore, said floater having a head at said pipe open end and a deflectable leg in said pipe, said head defining a slot, and said deflectable leg having a protrusion received in said hole in said pipe; and

a locking device received by and engaging said floater, said locking device having a wing inserted through said slot and rotated from said slot to a position against said deflectable leg.

19. The pipe end connection of claim 18, said pipe having two holes in the side thereof and said floater having first and second legs received in said pipe, each said leg having a protrusion received in one of said holes.

20. The pipe end connection of claim 19, said head of said floater defining first and second slots;

and said locking device having first and second wings inserted through said first and second slots and rotated from said slots to positions against said first and second legs.