Rewind arms for plastic film slitting apparatus

Details Rewind arms for plastic film slitting apparatus Rewind arms for plastic film slitting apparatus

2007-08-28

2007-08-28

Crawford, Gene O. (Department: 3654)

Winding, tensioning, or guiding

Coil holder or support

Axially adjustable

C242S578200, C242S599300, C242S599400

Reexamination Certificate

active

10511786

ABSTRACT:
A winding core1of small diameter is mounted at each end on a locking core chuck3coupled to a shaft14supported by spaced bearings4and8located within a housing part5at the free end6of a rewind arm structure. The central part of the shaft14has a pulley portion12over which a drive belt13runs. A larger core2is mounted at each end on a heavier duty locking core chuck7carried by larger bearings 8 which are located also within the housing5. The housing5is cut away or stepped at9whereby a contact pressure roller10having a width greater than that of the core1may be accommodated and brought into contact with the core1at least at the minimum diameter thereof.

REFERENCES:
patent: 2733020 (1956-01-01), Keyser
patent: 2851226 (1958-09-01), Wellington
patent: 3179349 (1965-04-01), Aaron et al.
patent: 3337145 (1967-08-01), Keck
patent: 4200245 (1980-04-01), Bugnone
patent: 4741490 (1988-05-01), Evans

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