Source: https://patents.google.com/patent/US9856656B2/en
Timestamp: 2019-04-26 14:34:08+00:00

Document:
The present application is a continuation of U.S. application Ser. No. 14/042,887, filed on Oct. 1, 2013, which is a divisional of U.S. application Ser. No. 13/540,107, filed on Jul. 2, 2012, which claims the benefit of U.S. Provisional Application No. 61/504,576, filed on Jul. 5, 2011, the benefit of Swedish Application No. 1150635-9, filed on Jul. 5, 2011, Swedish Application No. 1150775-3, filed on Aug. 26, 2011, and Swedish Application No. 1150777-9, filed on Aug. 29, 2011. The entire contents of each of U.S. application Ser. No. 14/042,887, U.S. application Ser. No. 13/540,107, U.S. Provisional Application No. 61/504,576, Swedish Application No. 1150635-9, Swedish Application No. 1150775-3, and Swedish Application No. 1150777-9 are hereby incorporated herein by reference in their entirety.
FIG. 3a shows the edge section from above. FIG. 3b shows a cross section of the edge section. A glue pocket 4 is preferably formed as a local cavity.
wherein the gluing part is in the edge section of the tongue, wherein the gluing part comprises a recess in the edge section forming a glue pocket having an opening which faces a wall of the groove when the tongue is inserted into the groove, and the glue pocket does not penetrate all the way through the edge section.
2. The tongue as claimed in claim 1, wherein the tongue is provided with a flexible link that connects the edge section to the elongate main body of the tongue, the flexible link including a section that is more flexible than the elongate main body of the tongue.
wherein the edge section is spaced in a length direction along the first long edge of the tongue from the protrusions.
4. The tongue as claimed in claim 3, wherein at least one of the protrusions is provided with a protruding friction connection, configured to hold the tongue in position until a glue in the glue pocket is cured.
5. The tongue as claimed in claim 3, wherein the protrusions are bow shaped.
6. The tongue as claimed in claim 3, wherein there is an angle between the protrusions and a longitudinal direction of the tongue.
7. The tongue as claimed in claim 2, wherein the tongue is a monolithic construction made as one unitary piece.
when in a relaxed state, the second long edge extends further in the second direction than the edge section and the gluing part.
9. The tongue as claimed in claim 1, further comprising a second edge section at an opposite end of the elongate main body.
10. The tongue as claimed in claim 1, wherein the at least two protrusions protrude in the same direction at the first long edge of the tongue.
11. The tongue as claimed in claim 10, wherein the at least two protrusions are bendable in a plane parallel to an upper surface of the tongue and extend substantially in the plane.
12. The tongue as claimed in claim 1, wherein the tongue is a monolithic construction made as one unitary piece.
14. A building panel provided with a tongue, according to claim 1, wherein said tongue is displaceable in a groove at an edge of the building panel.
securing the edge section to the building panel with the glue.
when inserting the tongue into the groove, the second edge section is within the groove and is secured to the groove with glue.
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References: Application No. 61
 Application No. 1150635
 Application No. 1150775
 Application No. 1150777
 Application No. 61
 Application No. 1150635
 Application No. 1150775
 Application No. 1150777