| Patents for F16K 15 - Check valves (18,131) |
|---|
| 05/25/1976 | US3958603 Insert for movable diaphragm type flow control valve |
| 05/18/1976 | US3957083 Pressure sensitive regulating valve |
| 05/18/1976 | US3957078 Wasp excluder and exhaust port protector for air brakes |
| 05/11/1976 | US3955596 Sewer pest control check valve |
| 05/11/1976 | US3955594 Pressure operated valve systems |
| 05/11/1976 | US3955592 Check valve |
| 05/11/1976 | US3955479 Fluid pressure operated actuator with safe disassembly means |
| 05/04/1976 | US3954223 Trickle irrigator |
| 05/04/1976 | US3954121 Vent check valve |
| 04/27/1976 | US3952766 Backflow preventer |
| 04/20/1976 | US3951164 Anti-siphon and backflow prevention valve |
| 04/13/1976 | US3949780 Two piece check valve |
| 03/23/1976 | US3945397 Plate valve |
| 03/23/1976 | US3945396 Rapid seating check valve |
| 03/16/1976 | US3943969 Positive acting check valve of polyvinylchloride to open in response to predetermined line pressure |
| 03/09/1976 | US3942551 Hydraulic damping means for hinged check valve |
| 03/02/1976 | US3941151 Vent pipe check valve |
| 03/02/1976 | US3941149 Valve |
| 02/24/1976 | US3939863 Basement sump construction |
| 02/17/1976 | US3938777 Control valves |
| 02/17/1976 | US3938548 Fluid flow control valves |
| 02/17/1976 | US3938541 Shaft seal for a check valve |
| 02/10/1976 | US3937250 Pressure relief adjustment means for check valve |
| 02/10/1976 | US3937249 Check valve |
| 02/10/1976 | US3937240 Check valve |
| 01/27/1976 | US3934608 Check valve |
| 01/20/1976 | US3934223 Tire pressure warning system |
| 01/20/1976 | US3933444 Flash back arrestor |
| 01/20/1976 | US3933177 Manually controlled air inflator adaptor |
| 01/20/1976 | US3933173 Check valve |
| 01/13/1976 | US3931831 Elastic check valve and method of construction |