Adjustable hydraulic shock absorber

• US 3,168,168 A
• Filed: 09/18/1963
• Issued: 02/02/1965
• Est. Priority Date: 09/18/1963
• Status: Expired due to Term

• Current Assignee: William J. Chorkey
• Original Assignee: William J. Chorkey
• Inventors: Chorkey, William J.
• Application Number:
  US04/309,639
• Time in Patent Office: 503 Days
• US Class Current: 188/287
• CPC Class Codes: F16F 9/44 Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction F16F9/53, F16F13/26 take precedence; temperature correction only F16F9/52

Claims

1. IN AN ADJUSTABLE HYDRAULIC SHOCK ABSORBER, THE COMBINATION, COMPRISING:

AN OUTER TUBE;

AN INNER TUBE DISPOSED IN SAID OUTER TUBE AND SPACED APART THEREFROM;

;

A PISTON SLIDABLY MOUNTED IN SAID INNER TUBE;

A ROD CONNECTED TO SAID PISTON AND EXTENDED OUTWARDLY FROM ONE END OF SAID OUTER TUBE FOR RECEIVING A SHOCK LOAD;

SAID INNER TUBE BEING ADAPTED TO RECEIVE HYDRAULIC FLUID FROM SAID OUTER TUBE, AND SAID INNER TUBE BEING PROVIDED WITH A PLURALITY OF LONGITUDINALLY SPACED APART HYDRAULIC FLUID ESCAPE SLOTS THROUGH WHICH FLUID IS ADAPTED TO ESCAPE FROM THE INNER TUBE INTO THE OUTER TUBE WHEN THE PISTON IS MOVED INWARDLY IN THE INNER TUBE UNDER A SHOCK LOAD AND, MEANS ADJUSTABLY MOUNTED ON SAID INNER TUBE AND MOVABLE OVER SAID SLOTS IN THE DIRECTION OF THE LONGEST DIMENSION OF SAID SLOTS TO PROGRESSIVELY VARY THE OPEN LENGTH OF SAID SLOTS, FOR CONTROLLING THE AMOUNT OF OPENING OF SAID ESCAPE SLOTS TO CONTROL THE DECELERATION OF THE PISTON WHEN IT IS MOVED INWARDLY IN SAID INNER TUBE AS SHOCK LOADS ARE DISSIPATED BY FORCING THE FLUID FROM THE INNER TUBE INTO THE OUTER TUBE THROUGH SAID ESCAPE SLOTS.