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1. WO1996041972 - DUAL-RATE LINEAR DAMPER

Publication Number WO/1996/041972
Publication Date 27.12.1996
International Application No. PCT/US1996/004129
International Filing Date 26.03.1996
Chapter 2 Demand Filed 20.11.1996
IPC
F16F 7/09 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
7Vibration-dampers; Shock-absorbers
08with friction surfaces rectilinearly movable along each other
09in dampers of the cylinder-and-piston type
F16F 9/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
9Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
02using gas only
CPC
F16F 7/09
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
7Vibration-dampers; Shock-absorbers
08with friction surfaces rectilinearly movable along each other
09in dampers of the cylinder-and-piston type
F16F 9/0227
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
9Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
02using gas only ; or vacuum
0209Telescopic
0227characterised by the piston construction
Applicants
  • LORD CORPORATION [US]/[US]
Inventors
  • YOUNG, Robert, A.
Agents
  • THOMSON, Richard, K.
Priority Data
08/489,01208.06.1995US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DUAL-RATE LINEAR DAMPER
(FR) AMORTISSEUR LINEAIRE A DOUBLE TAUX D'AMORTISSEMENT
Abstract
(EN)
A plurality of embodiments of dual-rate linear dampers which can be utilized as hold open rods. These dampers provide significantly greater resistance to movement in one direction than in the other and, in one embodiment, effectively lock in the hold open position unless and until the design breakover force is incurred. The comparative resistance to movement in the two linear directions can be altered within the range of between five and ten times the force in the resistive embodiment by varying a number of parameters including, but not limited to, the number of disks in the string, the thickness of the disk flange, the number and depth of grooves in one or both surfaces of the flange, the tapering of the flange, and the properties of the elastomer.
(FR)
La présente invention se rapporte à une pluralité de mode de réalisation d'amortisseurs linéaires à double taux d'amortissement pouvant être utilisés en tant que tiges de retenue. Ces amortisseurs fournissent une résistance au mouvement bien plus grande dans un sens que dans l'autre. Dans un mode de réalisation de l'invention, ces amortisseurs se verrouillent effectivement en position de retenue à moins que et jusqu'à ce qu'ils soient soumis à une force nominale critique. On peut modifier la résistance comparative au mouvement dans les deux sens linéaires dans la fourchette se situant entre cinq et dix fois la force dans la réalisation de résistance en faisant varier un nombre de paramètre, dont entre autres le nombre de disques dans la chaîne, l'épaisseur de la collerette du disque, le nombre et la profondeur des rainures dans l'une ou dans les deux surfaces de la collerette, le rétrécissement de la collerette ainsi que les propriétés de l'élastomère.
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