Resources Contact Us Home
Browse by Category: Main > Engineering
Class Information
Number: 137/246.23
Name: Fluid handling > With cleaner, lubrication added to fluid or liquid sealing at valve interface > Liquid supplied at valve interface > Gravity or capillary feed
Description: Valves wherein the lubricant flows by gravity or by capillarity.

Patents under this class:

Patent Number Title Of Patent Date Issued
7704728 Microfluidic gravity pump with constant flow rate Apr. 27, 2010
7007711 Dispersion nozzle with variable throughput Mar. 7, 2006
5901737 Rotary valve having a fluid bearing May. 11, 1999
5370506 Piston type compressor with a rotary suction valve Dec. 6, 1994
4273156 Shutoff device Jun. 16, 1981
4197924 Ball valve lubricating apparatus Apr. 15, 1980
3977496 Air tool lubricator Aug. 31, 1976

  Recently Added Patents
Method and mobile device for awareness of language ability
System and method for agitation of multiple specimen containers
Multicolored light converting LED with minimal absorption
Over the counter medicinal container with surface ornamentation
Redundant parallel operation of motor vehicle electrical system generators
Molecular hydrogen stores and hydrogen transfer reagents for hydrogenation reactions
Acrylic pressure-sensitive adhesive composition, acrylic pressure-sensitive adhesive layer, and acrylic pressure-sensitive adhesive tape
  Randomly Featured Patents
Thermally stable sulfur dioxide-ethylene-vinyl ester terpolymers and process for preparing same
Masking station
Treatment of menorrhagia, hypermenorrhea, dysmenorrhea and menstrual migraines by the administration of an antibacterial milk product
Cassette matrix for an electrical switching apparatus
Hinged golf training aid
Loader attachment
Method and system for automatic bucket loading
Reticulation resistant photoresist coating
Ink ribbon cartridge with C-shaped sideplates
Determining cable attenuation and loss of signal threshold