Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/247.47
Name: Fluid handling > With liquid valves or liquid trap seals > Liquid seal in liquid flow line; flow liquid forms seal > U-seals > Enlarged upflow leg > Topside access opening
Description: Seals with a top side access means located above the liquid seal level.










Patents under this class:

Patent Number Title Of Patent Date Issued
4487219 Floor drain or some other cupped water seal Dec. 11, 1984











 
 
  Recently Added Patents
Semiconductor unit having a power semiconductor and semiconductor apparatus using the same
Three-dimensional holographic display using active shutter
Multiple CQI feedback for cellular networks
Center spreader adapter tool for toilet paper rolls and paper towel rolls that do not have inner cardboard tubes
Sensing during magnetic resonance imaging
Sparse data compression
Semiconductor memory device and method for driving the same
  Randomly Featured Patents
All-terrain vehicle storage box
Peppermill tree
Image pickup apparatus having image pickup optical system
Information transmission and processing systems and methods for freight carriers
Thermal barrier coating system with intermetallic overlay bond coat
Superabsorbent crosslinked ampholytic ion pair copolymers
Method and apparatus for analyzing time series data
Pair of gloves
Method for selecting a relay station
Hair removal device and method