Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/247.21
Name: Fluid handling > With liquid valves or liquid trap seals > Liquid seal in liquid flow line; flow liquid forms seal > Valves > Line condition change responsive > Ball valve
Description: Apparatus in which the valve is a substantially spherical element.










Sub-classes under this class:

Class Number Class Name Patents
137/247.23 Seats vertically up 7


Patents under this class:

Patent Number Title Of Patent Date Issued
8256444 Check ball valve assembly with check ball guide Sep. 4, 2012
7976701 Drain trap Jul. 12, 2011
7854238 Conduit trap and condensation recovery device Dec. 21, 2010
7823601 Drain trap Nov. 2, 2010
7500968 Unidirectional urine collection reservoir Mar. 10, 2009
6192915 Sewerage inlet Feb. 27, 2001
5901731 Reverse osmosis drain coupling and method of installing May. 11, 1999
4726392 Drainage canal Feb. 23, 1988
4614480 Liquid pumping system Sep. 30, 1986











 
 
  Recently Added Patents
Anti-phishing system and method
Non-volatile memory array and device using erase markers
Clothing fastener accessory
System, method, and computer program product for identifying unwanted data communicated via a session initiation protocol
Pixel circuit
Dental plier
Method for producing coated steel sheet
  Randomly Featured Patents
Tackified star block copolymer pressure-sensitive adhesive composition and the sheet materials coated therewith
Process for hydroxyarylaldehydes
Ceramic green sheet
Plant watering system and process
Pulse sequence and method for creating a radio-frequency magnetic field gradient with a spatially independent phase for NMR experiments
Computer mouse
System and method for distributed streaming of scalable media
Low-noise amplifier circuit including band-stop filter
Process for the production of clavulanic acid salts
Set of waveguide assisted antenna elements for RFID tags