Resources Contact Us Home
Browse by Category: Main > Industrial
Class Information
Number: 470/3
Name: Threaded, headed fastener, or washer making: process and apparatus > Process > Assembling or disassembling fastener with element > Bolt or screw with washer
Description: Subject matter wherein the fastener comprises an externally threaded securing device having an enlargement at an end of the device structured to function as a head therefor, i.e., a bolt or screw, and further wherein the device is associated with means structured to cooperate and function with the fastener in the form of a perforated disk or annular component, i.e., a washer.

Sub-classes under this class:

Class Number Class Name Patents
470/4 By telescoping 14

Patents under this class:

Patent Number Title Of Patent Date Issued
6004214 Method of forming a device having a captured washer Dec. 21, 1999
5906544 Washer assembly apparatus May. 25, 1999
5616082 Apparatus for assembling a fastener to a washer Apr. 1, 1997
5603661 Bolt-nut assembly for railroad crossing frogs Feb. 18, 1997
4963063 Captive panel fastener Oct. 16, 1990
4957401 Threaded fastener having minimized length and weight and method to make it Sep. 18, 1990
4627166 Washer cutter Dec. 9, 1986
4435112 Fastener assembly Mar. 6, 1984
4201110 Hub nut with washer May. 6, 1980
4166311 Apparatus for trimming a cable terminal lug and assembling a fastener bolt thereon Sep. 4, 1979
4123132 Screw or nut and a captive washer Oct. 31, 1978

  Recently Added Patents
Technique for effectively providing program material in a cable television system
Non-aqueous solution process for the preparation of cross-linked polymers
Systems and methods for minimization or elimination of diffusion effects in a microfluidic system
System and method of supplying an electrical system with direct current
Washing-up bowl
  Randomly Featured Patents
Multichannel optical transmitter
Triazolopyrimidine derivatives
Poly(2,2,6-tetramethyl piperidyl amino)-1,3,5-triazines as stabilizers for synthetic polymer compositions
Swivel base apparatus and method of making a swivel base
Inter-entity coupling method, apparatus and system for service protection
1-Aziridine carboxylic acid derivatives with immunostimulant activity
Method for testing the function of a pressure switch of a tank ventilation system, control device, and internal combustion engine
Intelligent patching system and method
Universal converter plate for pressure transmitters
Coaxial rotary joint