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Class Information
Number: 285/229
Name: Pipe joints or couplings > Flexible joint, rigid members > Bellows > Single fold type
Description: Devices in which the bellows comprises a single annular fold or ridge with side walls.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4283078 |
Flexible joint protector |
Aug. 11, 1981 |
| 4273365 |
Expansion joint and fabric therefor |
Jun. 16, 1981 |
| 4265473 |
Means and technique for interconnecting the ends of spaced coaxial conduits with an expansion joint having a reduced axial dimension |
May. 5, 1981 |
| 4258938 |
Pipe couplings |
Mar. 31, 1981 |
| 4241944 |
Expansion joint |
Dec. 30, 1980 |
| 4235460 |
Expansion joint |
Nov. 25, 1980 |
| 4220180 |
Flexible pipe joint |
Sep. 2, 1980 |
| 4186949 |
Elastic pipe-connecting component for pipes or pipelines, or the like |
Feb. 5, 1980 |
| 4175754 |
Seal for fluid ducts |
Nov. 27, 1979 |
| 4159133 |
Flexible vacuum bellows |
Jun. 26, 1979 |
| 4155573 |
Elastic pipe connector |
May. 22, 1979 |
| 4142366 |
Exhaust double pipe of an internal combustion engine |
Mar. 6, 1979 |
| 4140338 |
High temperature expansion joint |
Feb. 20, 1979 |
| 4101150 |
Expansion joints |
Jul. 18, 1978 |
| 4090726 |
Flexible coupling for conduits |
May. 23, 1978 |
| 4059292 |
Expansible coupling |
Nov. 22, 1977 |
| 4026585 |
Flexible pipe coupling |
May. 31, 1977 |
| 3985378 |
Flexible coupling |
Oct. 12, 1976 |
| 3942466 |
Stern gear of ships |
Mar. 9, 1976 |
| 3934905 |
Expansion joint |
Jan. 27, 1976 |
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