Resources Contact Us Home
Browse by Category: Main > Engineering
Class Information
Number: 137/298
Name: Fluid handling > Hydrant type > With actuator lubricating means
Description: Apparatus which includes means for lubricating the valve actuator.

Patents under this class:

Patent Number Title Of Patent Date Issued
4887522 Air-conditioning apparatus Dec. 19, 1989
4791952 Hydrant and components thereof Dec. 20, 1988
4770203 Hydrant and components thereof Sep. 13, 1988
4763686 Hydrant and components thereof Aug. 16, 1988
4154259 Fire hydrants with improved unitized bonnet configuration May. 15, 1979

  Recently Added Patents
Error scanning in flash memory
Brushless electric motor or generator in shell construction
Vehicle running control system
Plants and seeds of corn variety CV092363
Data consumption framework for semantic objects
Digital broadcasting system and method of processing data in digital broadcasting system
Controller with screen
  Randomly Featured Patents
Voltage regulation using an estimated current
Conductive diffusion barrier of titanium nitride in ohmic contact with a plurality of doped layers therefor
Semiconductor and optoelectronic devices
Adjustable cup holder
Composite ball bats
Electronic casino gaming system with improved play capacity, authentication and security
Immunochemical-based test device with lift and twist specimen full tab
Method of fabricating self-aligned bipolar transistor
Crib endboard
Control system using a single proportional valve