PILE SPLICER WITH RETAINING MEANS

• US 3,796,057 A
• Filed: 05/15/1972
• Issued: 03/12/1974
• Est. Priority Date: 05/15/1972
• Status: Expired due to Term

• Current Assignee: John J. Dougherty
• Original Assignee: John J. Dougherty
• Inventors: Dougherty, John J.
• Primary Examiner(s): Shapiro, Jacob
• Application Number:
  US05/253,229
• Time in Patent Office: 666 Days
• Field of Search: 61/53 285/417,398,371,331 287/108 52/728 138/89
• US Class Current: 405/251
• CPC Class Codes: F16L 21/002 Sleeves or nipples for pipes of the same diameter; Reduction pieces with elastic sealing rings F16L21/022
• CPC Class Codes: Y10T 403/5733 Plural opposed sockets

Abstract

A pile splicer or coupling is disclosed by which the ends of two piles are spliced together for further driving into the earth and to align the ends of two piles. A double ended splicer includes an outer sleeve having an inwardly directed ledge between its ends. An inner retaining means for the end of each pile is carried by or secured to the ledge and is spaced from the outer sleeve so as to receive the end of the pile therebetween. The end of each pile engages opposite shoulders of the ledge. Each retaining means has a bulge extending outwardly therefrom and located between the ledge and the end of this means to frictionally engage the inner surface of the pile and more securely retain the end of the pile within the splicer. The inner surface of the outer sleeve tapers inwardly so as to freely guide the pile into the splicer. This taper also preferably is a little smaller at the inner end of the taper than the diameter of the pile so that the end of the pile is compressed to add its grip to the splicer as well as to contract the end of the pile somewhat. The retaining means may be a sleeve which also may be slotted for greater flexibility. A single ended splicer to frictionally receive the end of one pile has a shorter outer sleeve and a single inner retaining means.

Claims

1. A pile splicer for connecting the ends of two piles having wall thickness comprising an outer cylindrical sleeve having ends and an inner surface, a ledge projecting inwardly from the inner surface having upper and lower shoulders and a face, the inner surface of the outer sleeve tapering inwardly from an end thereof to the ledge, retaining means for at least one end of the outer sleeve and having an outer surface spaced from the inner surface of the outer sleeve to freely receive the end of the pile between the outer sleeve and the retaining means, the retaining means having a length extending to or approximately to an end of the outer sleeve, a bulge extending outwardly from the retaining means in a central region between the ledge and the end of the retaining means, the bulge having a dimension to frictionally engage the inner surface of the pile when the latter is driven between the outer sleeve and the retaining means, and means securing the retaining means to the ledge.

2. A pile splicer as in claim 1 in which the ledge is centrally of the outer sleeve and the inner surface of the outer sleeve tapering inwardly from each end thereof to the ledge, and a retaining means for each end of the outer sleeve.

3. A pile splicer as in claim 1 in which the ledge is adjacent to one end of the outer sleeve, and the retaining means is solely at one end of the outer sleeve.

4. A pile splicer as in claim 2 in which the retaining means for both ends of the outer sleeve is an integral inner sleeve having an outer surface and ends, and the means to secure the retaining means to the ledge comprising a circumferential groove in the outer surface of the inner sleeve located centrally between the ends thereof and receiving the ledge therein.

5. A pile splicer as in claim 4 including welding holes through the retaining means at the groove, and the retaining means being welded to the face of the ledge through the holes.

6. A pile splicer as in claim 1 in which at least one retaining means is a plurality of arms spaced from each other.

7. A pile splicer as in claim 6 in which the arms are separate elements and including ring means for each retaining means secured to the inner surfaces of the arms.

8. A pile splicer as in claim 7 in which each arm has an outer end and the ring means is a ring secured to the outer ends of the arms.

9. A pile splicer as in claim 7 in which the ring means is a ring secured to the inner surface of the bulge.

10. A pile splicer as in claim 9 in which the ring means includes a ring secured to the outer ends of the arms.

11. A pile splicer as in claim 6 in which the retaining means is an inner sleeve and the arms are formed by slots extending longitudinally from the outeR end thereof and through the bulge.

12. A pile splicer as in claim 1 in which the retaining means is slotted longitudinally at the bulge solely.

13. A pile splicer as in claim 1 in which the retaining means is a sleeve having an outwardly extending flange at the inner end thereof resting on a shoulder of the ledge.

14. A pile splicer as in claim 2 in which the outer sleeve is two half sleeves having an inwardly directed flange, and the two half sleeves having their flanges in contact and welded together to form a ledge.

15. A pile splicer as in claim 14 in which the retaining means is a sleeve having an outwardly extending flange at the inner end thereof resting on a shoulder of the ledge.

16. A pile splicer as in claim 1 including a plurality of longitudinally extending slots at least through the bulge.