Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/247.43
Name: Fluid handling > With liquid valves or liquid trap seals > Liquid seal in liquid flow line; flow liquid forms seal > U-seals > Topside access beneath cover plate closed floor opening
Description: Apparatus installed beneath a surface and having a top side access means located beneath an opening in the surface, the opening being provided with a removable cover plate.










Patents under this class:

Patent Number Title Of Patent Date Issued
8602051 Trap-primer system for floor drains Dec. 10, 2013
6311721 Residential drain line stop valve Nov. 6, 2001
4681131 Liquid closing device Jul. 21, 1987
4360041 Cleanout fitting Nov. 23, 1982
4275760 Trap-type drain with built-in strainer Jun. 30, 1981
4212314 Waste water outlet sanitary plant comprising a siphon Jul. 15, 1980











 
 
  Recently Added Patents
Tiger paw stationary tab
Stretchable elastic laminate having increased CD elongation zones and method of production
Method of manufacturing semiconductor devices using ion implantation
System and method for confirming delivery of an electronic message
Dynamic bar oriented user interface
XDSL system and signal transmission method, sending device, and receiving device of xDSL system
Authentication method
  Randomly Featured Patents
Aids splash back toilet guard
Methods and compositions based on inhibition of cell invasion and fibrosis by anionic polymers
Keypad
Alkynyl phenyl derivative compounds for treating ophthalmic diseases and disorders
Optical fiber splicing and connecting assembly
Method for providing thixotrophy to fluids downhole
Aerosol into liquid collector for depositing particles from a large volume of gas into a small volume of liquid
Process for the manufacture of polyester industrial yarn
Apparatus for three-phase separation during treatment of wastewater and sludge
Method and system for controlling fuel usage