Resources Contact Us Home
Browse by Category: Main > Industrial
Class Information
Number: 251/226
Name: Valves and valve actuation > Mechanical movement actuator > Plural motions of valve > Biased
Description: Devices in which means are provided to bias the valve to open or closed position.

Sub-classes under this class:

Class Number Class Name Patents
251/227 Spring 25

Patents under this class:

Patent Number Title Of Patent Date Issued

  Recently Added Patents
Power or voltage oscillation damping in a power transmission system
Switched capacitor hold-up scheme for constant boost output voltage
Passive millimeter wave differential interference contrast polarimetry
Conversion of 5-(chloromethyl)-2-furaldehyde into 5-methyl-2-furoic acid and derivatives thereof
Efficient paging in a wireless communication system
Structure of circuit board and method for fabricating the same
Switch redundancy in systems with dual-star backplanes
  Randomly Featured Patents
DNA sequence and recombinant production of the grass pollen allergen Phl p 4
Data demodulation for a CDMA communication system
Game based on data base of characters of different geographic regions
Pipetting device
Process for the solvent extraction of solid carbon-containing materials, principally coal
Computer map
Chair base
Steam heated griddle and grill
Polycarbonate--ultem block copolymers
Vertical contour correction device