Brush – broom – and mop making – Processes
Patent
1992-11-25
1994-06-07
Rosenbaum, Mark
Brush, broom, and mop making
Processes
A46D 306
Patent
active
053183525
ABSTRACT:
A spring member includes a planar strip of elastic material formed with a plurality of spirally-extending slits at spaced locations to define a plurality of spirally-extending elements integrally formed with the strip. The spirally-extending elements are pressed out of the plane of the strip to produce a plurality of helically-extending springs integrally formed with the strip, each spring decreasing in diameter from the strip to the outer end of the spring. Also described is the use of such spring members in toothbrushes and keyboards. Further described are methods of making such a spring member and making brush heads including such spring members.
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Barish Benjamin J.
Chin Frances
Oraline International B.V.
Rosenbaum Mark
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