Expansible shaft for roll core

Winding – tensioning – or guiding – Coil holder or support – Radially expansible or contractile

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B65H 7524

Patent

active

054453429

ABSTRACT:
An elongate expansible shaft for a roll core has a peripheral surface defining multiple separate elongate slots helically intertwined and oriented at a pitch angle no greater than about 30.degree. measured from a longitudinal axis. Each slot is T-shaped in cross section and contains a respective separate, elongate, resilient bladder pneumatically expandable into frictional engagement with the core. The bladder has a unitary construction with hinge portions for minimizing the loss of force due to expansion of the bladder. An air inlet fitting is inserted in one end of each bladder and is independently connected to a respective separate valve for preventing the escape of air from the bladder irrespective of the air pressure in any other bladder.

REFERENCES:
patent: 2656990 (1953-10-01), Radtke
patent: 2720735 (1955-10-01), Reuhl et al.
patent: 2801649 (1957-08-01), Schneider et al.
patent: 2891798 (1959-06-01), Smith
patent: 3214109 (1965-10-01), Gadde et al.
patent: 3223341 (1965-12-01), Gadde
patent: 3253323 (1966-05-01), Saueressig
patent: 3394902 (1968-07-01), Hise et al.
patent: 3414210 (1968-12-01), Gaudin
patent: 3425642 (1969-02-01), May
patent: 3592405 (1971-07-01), Young
patent: 3825167 (1974-07-01), Komorek et al.
patent: 3834257 (1974-09-01), Ganser
patent: 3904143 (1975-09-01), Kullander
patent: 3904144 (1975-09-01), Gattrugeri
patent: 3937412 (1976-02-01), Damour
patent: 4026491 (1977-05-01), Boestroem
patent: 4124173 (1978-11-01), Damour
patent: 4147312 (1979-04-01), Secer et al.
patent: 4771963 (1988-09-01), Gattrugeri
patent: 4828198 (1989-05-01), Kann et al.
patent: 5372331 (1994-12-01), Miller et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Expansible shaft for roll core does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Expansible shaft for roll core, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expansible shaft for roll core will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1814872

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.