Tube or the like
Latest Oy Uponor AB Patents:
- Method and device for extrusion of a double wall plastics pipe
- Method in manufacturing a heat insulated tube and a device in extruders for manufacturing the tube
- Method for the formation of a hole in a plastic pipe
- Sleeve joint and method of producing such a sleeve joint
- Method and device for extrusion of a double wall plastics pipe
Description
FIG. 1 is a perspective view of a tube showing my new design;
FIG. 2 is a side elevational view thereof, the other sides being the same as the side shown; and
FIG. 3 is an elevational view taken from one end thereof, the opposite end being the same as the end shown.
Referenced Cited
U.S. Patent Documents
| D235100 | May 1975 | Maroschak |
| 2707492 | May 1955 | Harris et al. |
| 2823702 | April 1955 | November |
| 3605817 | September 1971 | Bauman et al. |
| 3658097 | April 1972 | Martin et al. |
| 4096887 | June 27, 1978 | Streit |
| 4712642 | December 15, 1987 | Lalikos et al. |
| 4756045 | July 12, 1988 | Gans et al. |
| 4793384 | December 27, 1988 | Lalikos et al. |
Patent History
Patent number: D307174
Type: Grant
Filed: Mar 13, 1986
Date of Patent: Apr 10, 1990
Assignee: Oy Uponor AB (Nastola)
Inventors: Gunnar Bjorkman (Fristad), Jyri Jarvenkyla (Hollola)
Primary Examiner: James R. Largen
Assistant Examiner: Cathy Anne MacCormac
Law Firm: Merchant, Gould, Smith, Edell, Welter & Schmidt
Application Number: 6/844,735
Type: Grant
Filed: Mar 13, 1986
Date of Patent: Apr 10, 1990
Assignee: Oy Uponor AB (Nastola)
Inventors: Gunnar Bjorkman (Fristad), Jyri Jarvenkyla (Hollola)
Primary Examiner: James R. Largen
Assistant Examiner: Cathy Anne MacCormac
Law Firm: Merchant, Gould, Smith, Edell, Welter & Schmidt
Application Number: 6/844,735
Classifications
