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Class Information
Number: 72/50
Name: Metal deforming > By tool-couple pressing together adjacent surface portions of same work (e.g., tube-seamer) > To form helically-seamed tube > Using roller conforming to seam contour
Description: Subject matter wherein the tool couple includes one or more rollers* to form the joint, and wherein a cross section of the joint at the zone of formation complements (i.e., fits into) the cross-section of the roller(s) at that zone.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7404308 |
Apparatus for producing helically corrugated metal pipe and related method |
Jul. 29, 2008 |
| 7228030 |
Method and apparatus providing an output coupler for an optical beam |
Jun. 5, 2007 |
| 7228031 |
Method and apparatus providing an output coupler for an optical beam |
Jun. 5, 2007 |
| 6460236 |
Apparatus for producing wrapped slip tubes |
Oct. 8, 2002 |
| 6453710 |
Method and apparatus for manufacturing a helically-wound lock-seam tube having air nozzles |
Sep. 24, 2002 |
| 6378193 |
Process for manufacturing a flexible continuous tube |
Apr. 30, 2002 |
| 6339945 |
Apparatus for forming tapered spiral tubes |
Jan. 22, 2002 |
| 6145732 |
Cylindrical helical seamed tube and method and apparatus therefore |
Nov. 14, 2000 |
| 6003220 |
Method and apparatus for producing helically wound lock-seam tubing |
Dec. 21, 1999 |
| 5916642 |
Method of encapsulating a material in a carbon nanotube |
Jun. 29, 1999 |
| 5720095 |
Method and apparatus for producing helically wound lock-seam tubing |
Feb. 24, 1998 |
| 5014424 |
Method of making a curved pipe |
May. 14, 1991 |
| 5001819 |
Apparatus for forming perforated tubes |
Mar. 26, 1991 |
| 4884426 |
Device for spiral winding of tapes |
Dec. 5, 1989 |
| 4774827 |
Process of spirally winding tapes |
Oct. 4, 1988 |
| 4704885 |
Apparatus for making connecting pipes for connecting ducts |
Nov. 10, 1987 |
| 4693149 |
Device for the automatic cutting of cardboard and other tubes |
Sep. 15, 1987 |
| 4622838 |
Apparatus for manufacturing flexible corrugated tubes |
Nov. 18, 1986 |
| 4567742 |
Ribbed spiral pipe producing machine |
Feb. 4, 1986 |
| 4353232 |
Apparatus for making corrugated tubing and method for joining corrugated tubing |
Oct. 12, 1982 |
| 4337564 |
Machine and method for forming tubes from a strip |
Jul. 6, 1982 |
| 4287739 |
Method for producing a helically wound pipe having a predetermined diameter |
Sep. 8, 1981 |
| 4161811 |
Method and apparatus for the manufacture of reinforced smooth flow pipe |
Jul. 24, 1979 |
| 4160312 |
Method and apparatus for making multi-layer spiral pipe |
Jul. 10, 1979 |
| 4096720 |
Apparatus for making corrugated flexible metal tubing |
Jun. 27, 1978 |
| 4085604 |
Method of making corrugated flexible metal tubing |
Apr. 25, 1978 |
| 4058997 |
Apparatus for manufacturing tubes |
Nov. 22, 1977 |
| 4048827 |
Apparatus for forming a large diameter pipe |
Sep. 20, 1977 |
| 3982414 |
Machine for making corrugated flexible cylindrical duct |
Sep. 28, 1976 |
| 3940965 |
Method and apparatus for forming corrugating pipe |
Mar. 2, 1976 |
| 3940962 |
Conduit making machine with diameter control and method |
Mar. 2, 1976 |
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