Metal working – Means to assemble or disassemble – Means comprising hand manipulatable tool
Patent
1984-02-01
1985-08-20
Watson, Robert C.
Metal working
Means to assemble or disassemble
Means comprising hand manipulatable tool
B25B 2714
Patent
active
045355223
ABSTRACT:
A maintenance tool for removal of a valve sleeve assembly from a valve cavity in a flow through cell of a blood gas analysis system or the like includes insertion structure that has a lead portion and a support portion of cross sectional dimension greater than the lead portion and corresponding to the inner cross sectional dimension of the valve sleeve assembly, gripping structure carried by the insertion structure and movable between a retracted position and an extended position, the gripping structure in its extended position having a portion that extends radially beyond the lead portion at the end of the insertion structure, and actuating structure for moving the gripping structure between the retracted and extended positions. The insertion structure is adapted to be inserted into a valve sleeve assembly in a valve cavity with the gripping structure in the retracted position so that the support portion is piloted on the inner surface of the valve sleeve assembly and then the actuating structure is operated to place the gripping structure in its extended position so that subsequent withdrawal of the insertion structure supports and removes the valve sleeve from the valve cavity. The tool facilitates removal of microvalve sleeves from flow through cells of blood gas analyzer cuvettes for periodic inspection and seal replacement in a simple and efficient manner that does not damage precision surfaces of the valve cavity and that is easily used in the field.
REFERENCES:
patent: 1544246 (1925-06-01), Leslie
patent: 2924006 (1960-02-01), Boe
patent: 4110886 (1978-09-01), Wendler et al.
patent: 4298026 (1981-11-01), Ambers
patent: 4361539 (1982-11-01), Weinberg et al.
Allied Corporation
McCarter Lowell H.
Watson Robert C.
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