Resources Contact Us Home
Browse by Category: Main > Tools & Hardware
Class Information
Number: 451/117
Name: Abrading > Machine > By use of plural work holders, without tool > Of valve and seat > Poppet valve
Description: Abrading machine by which a poppet valve and its seat are abraded to a fit by mutual moving contact.

Patents under this class:

Patent Number Title Of Patent Date Issued
6899605 Grinding machine May. 31, 2005
5823861 Spiral-flow barrel finishing machine Oct. 20, 1998
4581854 Valve grinding apparatus Apr. 15, 1986

  Recently Added Patents
Bi-directional pattern dependent noise prediction
Communication system and data transmission method thereof
Managing aging of silicon in an integrated circuit device
Engineered nucleic acids encoding a modified erythropoietin and their expression
Non-transitory computer readable recording medium storing print management program, print management device, print management method, and print system
Salts and polymorphs of desazadesferrithiocin polyether analogues as metal chelation agents
Analog-to-digital converter with input voltage biasing DC level of resonant oscillator
  Randomly Featured Patents
Node processors for use in parity check decoders
Apparatus for treatment and purification of waste gases from a secondary aluminum melting plant
Process for production of functional film
Method and apparatus for reproducing a musical presentation
Golf ball mark repair tool
Laser disk texturing apparatus
Method and system for defrost control on reversible heat pumps
Profiled insulation and method for making the same
Connecting structure of flat circuit member with reinforced connection boundary
Press nut