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Class Information
Number: 285/179
Name: Pipe joints or couplings > Elbow
Description: Subject matter comprising a fitting having only two openings with the axis of the openings intersecting at an angle.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4606556 |
Wear resistant elbow |
Aug. 19, 1986 |
| 4595319 |
Pneumatic conveying system elbow |
Jun. 17, 1986 |
| 4537426 |
Couplings for non-ferrous pipe |
Aug. 27, 1985 |
| 4530523 |
Unitary cantilever clamp action fitting with a split end |
Jul. 23, 1985 |
| 4521038 |
Safety connector for flexible tube device |
Jun. 4, 1985 |
| 4514244 |
Plastic pipe elements and methods for making same |
Apr. 30, 1985 |
| 4508370 |
Rigid duct with bendable elbow |
Apr. 2, 1985 |
| 4489961 |
Terminal for flexible tube |
Dec. 25, 1984 |
| 4479668 |
Bent tube and tube assembly, particularly for connecting a heat-exchanger to a circuit |
Oct. 30, 1984 |
| D275314 |
Plumbing fitting |
Aug. 28, 1984 |
| D275027 |
Plumbing fitting |
Aug. 7, 1984 |
| 4461498 |
Coupling members for pipeline assemblies |
Jul. 24, 1984 |
| 4457542 |
Plastic pipe fitting |
Jul. 3, 1984 |
| 4447076 |
Conduit assembly |
May. 8, 1984 |
| 4387914 |
Short radius, low wear elbow |
Jun. 14, 1983 |
| 4369991 |
Connector for endotracheal tubes and catheters |
Jan. 25, 1983 |
| 4363504 |
High temperature lined conduits, elbows and tees |
Dec. 14, 1982 |
| 4363681 |
Method for making pipe insulator |
Dec. 14, 1982 |
| 4348040 |
Flanged pipe fitting |
Sep. 7, 1982 |
| 4343498 |
Swivel hose coupling |
Aug. 10, 1982 |
| 4335907 |
Meter connection apparatus |
Jun. 22, 1982 |
| 4327778 |
Pipe insulator |
May. 4, 1982 |
| 4327941 |
Refill hose mounting member and retainer for ball cocks |
May. 4, 1982 |
| 4324423 |
Tubular fitment |
Apr. 13, 1982 |
| 4315644 |
Multishell pipe bend |
Feb. 16, 1982 |
| 4307901 |
Apparatus for locating therein a pipe union |
Dec. 29, 1981 |
| 4303261 |
Pipe system including readily removable pipe link |
Dec. 1, 1981 |
| 4288103 |
Fluid fitting having gripping bass means for chucking |
Sep. 8, 1981 |
| 4280721 |
Angularly lockable fitting |
Jul. 28, 1981 |
| 4269436 |
Pre-insulated pipe system |
May. 26, 1981 |
| 4265472 |
Pipe elbow connection |
May. 5, 1981 |
| 4260183 |
Pump hose swivel connection |
Apr. 7, 1981 |
| 4252346 |
Connection for transition from a cutting ring joint or similar to a flange joint |
Feb. 24, 1981 |
| 4251170 |
Abrasion resistant bend and method for small pipelines |
Feb. 17, 1981 |
| 4244606 |
Apparatus for reducing thermal fatigue in a piping suspension system for a high temperature furnace |
Jan. 13, 1981 |
| 4239262 |
Pump end swivel for hose |
Dec. 16, 1980 |
| 4181332 |
Flexible pipe connection |
Jan. 1, 1980 |
| 4173989 |
Prest-O-Fit universal adapter fitting |
Nov. 13, 1979 |
| 4145076 |
Connecting member for lubrication system |
Mar. 20, 1979 |
| 4130300 |
Composite abrasion resistant pipe elbow |
Dec. 19, 1978 |
| 4117201 |
Corrosion and erosion resistant lined equipment |
Sep. 26, 1978 |
| 4105226 |
Snap-in fittings and coupling ring therefor |
Aug. 8, 1978 |
| 4080752 |
Toy blocks with conduits and fluid seal means |
Mar. 28, 1978 |
| 4068863 |
Pipe joint |
Jan. 17, 1978 |
| 4059293 |
Connector |
Nov. 22, 1977 |
| 4045060 |
Pipe retainer joints |
Aug. 30, 1977 |
| 4036513 |
Pipe fitting |
Jul. 19, 1977 |
| 4023833 |
Elbow coupler |
May. 17, 1977 |
| 4018979 |
Split shell connector accessory for electrical cables |
Apr. 19, 1977 |
| 4005880 |
Gas service connector for plastic pipe |
Feb. 1, 1977 |
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