Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
C.H. Perrott, Inc. Patents
Assignee:
C.H. Perrott, Inc.
Address:
Portland, OR
No. of patents:
6
Patents:












Patent Number Title Of Patent Date Issued
5797419 Sewer line trap priming assembly and antisiphoning conduit component therefor August 25, 1998
An automatic sewer line trap priming assembly including a gap type, anti-siphoning conduit component. A shielded and directed jet at timed intervals directs priming water increments into a receiving funnel which communicates with the trap.
5678588 Sewer line multiple trap priming system and method October 21, 1997
A sewer line multiple trap priming system comprises a house line and a plurality of branch lines all communicating with each other and supplied with water under pressure. A plurality of makeup priming water lines are connected, one to each of the traps. In all but one of the branch lines
5263508 Sewer line water trap charging valve with improved adjustment for house line pressure changes November 23, 1993
A device for charging sever line traps automatically upon decrease in main line water pressure comprising a branch line having a piston valve member telescopically received over the end of an adjustable tubular member, the piston having a first seat for sealing engagement with the end of
5253670 Multiple drain trap primer valve assembly for sewer lines October 19, 1993
A multiple drain trap primer valve assembly. The assembly comprises a plumbing conduit system including a house line 10 carrying water under pressure and a plurality of branch lines 12 each serving the drain trap 14 of a particular plumbing fixture. A manifold 26 having multiple discharg
4926897 Automatic fluid pressure equalizing valve May 22, 1990
A valve for proportioning hot and cold water flow in response to the pressure balance between the hot and cold water supply lines includes a piston which adjusts position in response to variation in the pressure ratio of the hot and cold water supplied to the valve, thereby maintaining
4712574 Vacuum-breaking valve for pressurized fluid lines December 15, 1987
For use in pressurized fluid lines, an anti-siphon and back-flow prevention valve. A conduit is tapped into the line upstream of an outlet terminating in a ball-shaped housing. The housing receives check valve means arranged for insuring that fluid does not escape during normal operation

 
 
  Recently Added Patents
Concentrating photovoltaic system module with actuator control
Point-of-sale cart
Method of targeting hydrophobic drugs to vascular lesions
Method for cutting C--Mn steel with a fiber laser
Image processing device, printing apparatus, image processing method, and method of producing printing apparatus
Scanning transmission electron microscope and axial adjustment method thereof
Techniques to manage communications resources for a multimedia conference event
  Randomly Featured Patents
Broad beam monofilar helical antenna for circularly polarized radio waves
Curved surface reconstruction
Method of controlling the power of an induction motor
Airflow control devices based on active materials
Method of electrostatically forming visual image
Engine lubrication system
Multi-channel audio decoding method and apparatus therefor
Polyhydric phenol compound and positive resist composition comprising the same
Reduction of the grain size of crystalline explosive
Home network connection management system using UPnP and VLAN multicast