Suspension system for heavy vehicles

• US 3,330,578 A
• Filed: 09/21/1965
• Issued: 07/11/1967
• Est. Priority Date: 09/21/1965
• Status: Expired due to Term

• Current Assignee: Jackson C. Medley, Ralph H. Kress
• Original Assignee: Jackson C. Medley, Ralph H. Kress
• Inventors: Kress, Ralph H., Medley, Jackson C.
• Application Number:
  US04/488,985
• Time in Patent Office: 658 Days
• US Class Current: 280/423.1
• CPC Class Codes: B60G 17/033 characterised by regulating means acting on more than one spring
• CPC Class Codes: B60G 17/04 fluid spring characteristics
• CPC Class Codes: B60G 17/052 Pneumatic spring characteristics B60G17/048 takes precedence ; valves per se F16K
• CPC Class Codes: B60G 5/005 the wheels being fixed on a non-pivotal structure, e.g. a sliding mount
• CPC Class Codes: B62D 53/04 comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle

Claims

1. IN A TRUCK HAVING A BODY AND A TRACTOR UNIT, A KINGPIN BETWEEN THE BODY AND TRACTOR CONSISTING OF TELESCOPING PARTS CONTAINING LIQUID UNDER COMPRESSION SUSTAINING WEIGHT OF THE BODY AND LOAD THEREIN, SAID TRACTOR HAVING A SUSPENSION SYSTEM INCLUDING STRUTS OF THE TELESCOPING GAS CHAMBER TYPE, PRESSURE ACTUATED VALVE MEANS OPERABLE IN RESPONSE TO A PREDETERMINED RISE IN THE KINGPIN LIQUID PRESSURE TO DIRECT ADDITIONAL GAS TO THE STRUTS.