Package making – Means to open or erect receptacle – Means to remove separate closure
Patent
1993-12-07
1995-10-24
Culver, Horace M.
Package making
Means to open or erect receptacle
Means to remove separate closure
53357, 73847, 7386221, 7386223, B67B 714, B67B 718
Patent
active
054599750
ABSTRACT:
A chuck for grasping bottle caps is provided for use in machines for torque-testing bottle caps. The chuck comprises a housing having an open-ended cavity, with an annular plate fastened within the housing's open end. The plate provides a seat for a flat elastomeric ring and also constrains the ring against radial expansion. The elastomeric ring defines an opening to accommodate a cap to be tested. The housing further accommodates a metal pusher member which normally engages the inner end of the elastomeric ring. A camming mechanism mounted within the cavity is arranged to apply a force to move the pusher member against the elastomeric ring and this force coacts with the constraining force of the annular plate to cause the elastomeric ring to expand inwardly into tight gripping engagement placed with a cap disposed within the elastomeric ring, whereby torque can be applied to the cap by rotation of the chuck without deforming the cap.
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patent: 5152182 (1992-10-01), Searle
Culver Horace M.
Vibrac Corporation
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