| |
 |
|
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 |
| 5009552 |
Wear resistant grain flow control elbow |
Apr. 23, 1991 |
| 4995645 |
Elbow connection for pneumatic conveying system |
Feb. 26, 1991 |
| 4986732 |
Steam turbine crossover piping with reduced turning losses |
Jan. 22, 1991 |
| 4976288 |
Tubing bend for pneumatic conveying system |
Dec. 11, 1990 |
| 4960296 |
Galvanic isolator conduit fitting |
Oct. 2, 1990 |
| 4930816 |
Joining structures for metal pipes |
Jun. 5, 1990 |
| 4915425 |
Pipe connecting element |
Apr. 10, 1990 |
| 4893845 |
Firewall heater line adapter |
Jan. 16, 1990 |
| 4893846 |
Connector fittings |
Jan. 16, 1990 |
| 4890866 |
Tubing connector |
Jan. 2, 1990 |
| 4888958 |
Cooling apparatus for low air loss therapy beds |
Dec. 26, 1989 |
| 4886305 |
Double containment pipe fittings and apparatus to adhesively install the same |
Dec. 12, 1989 |
| 4878694 |
Method and device for the remote positioning of an elbow coupling |
Nov. 7, 1989 |
| 4865353 |
Abrasion resistant ceramic elbow |
Sep. 12, 1989 |
| 4858965 |
Concentric injection flow pipe junction |
Aug. 22, 1989 |
| 4852563 |
Multifunction connector for a breathing circuit |
Aug. 1, 1989 |
| 4836582 |
Fluid coupling for engine |
Jun. 6, 1989 |
| 4830410 |
Pipe connecting member of plastics material |
May. 16, 1989 |
| 4822080 |
Rotatably adjustable pipe joint/coupling seal |
Apr. 18, 1989 |
| 4817996 |
Adjustable reusable fitting assembly for reinforced hose |
Apr. 4, 1989 |
| 4810008 |
Method and apparatus for repairing lawn sprinkler systems |
Mar. 7, 1989 |
| 4805942 |
Field attachable and reusable hose end fitting for convoluted end |
Feb. 21, 1989 |
| 4804210 |
Double sealed, double wall insulated SPA pipe coupling |
Feb. 14, 1989 |
| 4796926 |
Dump fitting for sewer hose |
Jan. 10, 1989 |
| 4793303 |
Elbow for carburettor |
Dec. 27, 1988 |
| 4786088 |
Double-containment thermoplastic pipe assembly |
Nov. 22, 1988 |
| 4783099 |
Fluid flow conduit systems |
Nov. 8, 1988 |
| 4776616 |
Coupling |
Oct. 11, 1988 |
| 4774940 |
Breathing circuit connector for use in anesthesiology |
Oct. 4, 1988 |
| 4770446 |
Pressure tank connector with internal crimped tank attachment |
Sep. 13, 1988 |
| 4767024 |
Blowing device for elimination of compactions in bulk material storage silos |
Aug. 30, 1988 |
| 4765938 |
Apparatus and method for the application of a plastic liner to a flanged pipe elbow |
Aug. 23, 1988 |
| 4762343 |
Tube connector |
Aug. 9, 1988 |
| 4758027 |
Recreational vehicle sewerline adapter |
Jul. 19, 1988 |
| 4744695 |
Underground cable duct components and method of installing multiple cables therethrough |
May. 17, 1988 |
| 4733889 |
Wear resistant pipe |
Mar. 29, 1988 |
| 4730855 |
Elbow pipe for electric conduit |
Mar. 15, 1988 |
| 4726612 |
Pipe connecting device |
Feb. 23, 1988 |
| 4722556 |
Recreational vehicle sewerline adapter |
Feb. 2, 1988 |
| 4702274 |
Quick disconnect for sewage system |
Oct. 27, 1987 |
| 4684155 |
Pipe elbow with abrasion resistant composite inner liner and method for forming |
Aug. 4, 1987 |
| 4662655 |
Pipe connection of fibre reinforced plastic pipe parts |
May. 5, 1987 |
| 4653777 |
Articulate bent pipe for transportation of powder and slurry in dry or wet state |
Mar. 31, 1987 |
| 4650222 |
Connecters for air and vacuum tubes and hoses |
Mar. 17, 1987 |
| 4641864 |
Wear resistant pipe bend for slurry transport |
Feb. 10, 1987 |
| 4639017 |
Offset nipple |
Jan. 27, 1987 |
| 4637636 |
Tube couplings |
Jan. 20, 1987 |
| 4633913 |
Wear-resistant pipe |
Jan. 6, 1987 |
| 4632435 |
Tubing connector system |
Dec. 30, 1986 |
| 4621953 |
Anti-erosion protrusions for wear surfaces in fluid conduits |
Nov. 11, 1986 |
|
|
|
