Double disc construction for gate valves

• US 3,215,399 A
• Filed: 05/28/1962
• Issued: 11/02/1965
• Est. Priority Date: 05/28/1962
• Status: Expired due to Term

• Current Assignee: John A. Mcinerney, Kurt B. Bredtschneider
• Original Assignee: John A. Mcinerney, Kurt B. Bredtschneider
• Inventors: Mcinerney, John A., Bredtschneider, Kurt B.
• Application Number:
  US04/198,245
• Time in Patent Office: 1,254 Days
• US Class Current: 251/195
• CPC Class Codes: F16K 3/314 Forms or constructions of slides; Attachment of the slide to the spindle

Claims

1. IN A WEDGE GATE VALVE HAVING A PORTED CASING WITH TAPERED SEATS;

A CLOSURE MEMBER BETWEEN SAID SEATS;

THE CLOSURE MEMBER COMPRISING A HOLLOW CARRIER AND A PAIR OF OPPOSITELY DISPOSED DISCS IN SAID CARRIER;

THE CARRIER HAVING OPPOSITELY DISPOSED APERTURES IN ALIGNMENT WITH THE PORTS OF THE SAID CASING;

THE SAID APERTURES BEING OF A SIZE AND CONFIGURATION TO RECEIVE A PORTION OF SAID DISCS;

THE LATTER DISCS BEING ANNULARLY FORMED OON SAID PORTION RECEIVED WITHIN THE APERTURES OF SAID DISC CARRIER WHEREBY UPON PREDETERMINED ROTATION OF SAID DISCS THE LATTER ARE RECEIVED AND LOCKED IN SAID CARRIER APERTURES;

ADJUSTING MEANS BETWEEN SAID DISCS FOR EFFECTING ALIGNMENT THEREOF IN ALL PLANES;

THE SAID ADJUSTING MEANS BEING OF A MATERIAL HAVING A PREDETERMINED COEFFICIENT OF EXPANSION WHEREBY SAID ADJUSTING MEANS FUNCTIONS AS A TEMPERATURE COMPENSATING MEANS BETWEEN SAID DISCS;

ACTUATING MEANS FOR SAID CLOSURE MEMBER;

THE SAID ACTUATING MEANS COOPERATING WITH ANNULAR PORTION OF SAID CARRIER WHEREBY TO RESTRAIN SAID DISCS AGAINST FURTHER ROTATION.