Disposable valve

• US 3,185,179 A
• Filed: 05/05/1961
• Issued: 05/25/1965
• Est. Priority Date: 05/05/1961
• Status: Expired due to Term

• Current Assignee: Andrew Harautuneian
• Original Assignee: Andrew Harautuneian
• Inventors: ANDREW HARAUTUNEIAN
• Application Number:
  US04/108,127
• Time in Patent Office: 1,481 Days
• US Class Current: 137/625.47
• CPC Class Codes: A61M 39/223 Multiway valves
• CPC Class Codes: F16K 27/062 with conical plugs
• CPC Class Codes: Y10T 137/86871 Plug

Claims

3. A DISPOSABLE PLASTIC VALVE COMPRISING:

A BODY HAVING A TAPERED BORE;

A TAPERED CORE ROTATABLY SEATED IN SAID BORE AND EXTENDING ABOVE AND BELOW SAID BODY;

A HANDLE ASSOCIATED WITH ONE OF THE EXTENDING ENDS OF THE CORE;

AN INWARDLY TAPERING BORE IN THE THER END OF THE CORE;

A RETAINING MEMBER ASSOCIATED WITH SAID END OF THE CORE, SAID MEMBER HAVING AN INTEGRAL TAPERED PLUG WEDGED TIGHTLY INTO THE CORE BORE;

AND MEANS INTEGRAL WITH SAID PLUG AND EXTENDING BEYOND THE PERIPHERY OF SAID CORE, SAID MEANS BEARING AGAINST THE BOTTOM SURFACE OF THE BODY AND URGING THE CORE TIGHTLY INTO THE BODY.

13. A METHOD OF MAKING A PLASTIC VALVE COMPRISING:

FORMING OF A PLASTIC MATERIAL WHICH LOSES ITS RIGIDITY SOMEWHAT AT ELEVATED TEMPERATURES A BODY MEMBER HAVING A BORE;

FORMING A CORE MEMBER AND A RETAINING MEMBER OF A DIFFERENT PLASTIC MATERIAL WHICH MAINTAINS ITS RIGIDITY AT TEMPERATURES HIGHER THAN THE PLASTIC MATERIAL OF THE BODY MEMBER;

PRESSING THE CORE TIGHTLY INTO THE BODY BORE WITH AN END PORTION OF THE CORE EXTENDING BEYOND SAID BODY;

AXIALLY PRESSING THE RETAINING MEMBER ONTO THE EXTENDING END PORTION OF THE CORE;

HEATING THE VALVE TO TEMPERATURES AT WHICH THE VALVE BODY LOSES SLIGHTLY ITS RIGIDITY BUT AT WHICH SAID CORE AND RETAINING MEMBER DO NOT, SAID BODY RELIEVING RADIALLY OUTWARDLY TO PRECISELY CONFORM ITS INNER SURFACE TO AN OUTER SURFACE OF SAID CORE;

AND COOLING SAID VALVE TO ROOM TEMPERATURES WHERE SAID RELIEVED BODY REGAINS ITS RIGIDITY AND MAINTAINS A PRECISE FIT WITH SAID CORE.