Card – picture – or sign exhibiting – Changing exhibitor – Double reel and web
Patent
1978-01-13
1979-10-23
Pitrelli, John F.
Card, picture, or sign exhibiting
Changing exhibitor
Double reel and web
40155, 40603, G09F 718
Patent
active
041715853
ABSTRACT:
A roll display device having a pair of roll mounting cylinders, an expandable frame rotatably mounting the cylinders at the ends of the frame and a base support for the frame. Each mounting cylinder has means for quickly clamping a roll end on it. Means are provided for rotating each mounting cylinder to wind or unwind a roll on or off it thus moving the roll, in either direction across the frame.
REFERENCES:
patent: RE26156 (1967-02-01), Muller
patent: 314405 (1885-03-01), Whipple
patent: 394856 (1888-12-01), Hendrick
patent: 435696 (1890-09-01), Hoffmann
patent: 577530 (1897-02-01), Lee
patent: 620777 (1899-03-01), Hoskin
patent: 879261 (1908-02-01), Harter
patent: 1236355 (1917-08-01), Ratto
patent: 1396553 (1921-11-01), Bovy
patent: 1467896 (1923-09-01), Juvet
patent: 1699176 (1929-01-01), Zaremba
patent: 1840620 (1932-01-01), Dennis
patent: 2140674 (1938-12-01), Hassett
patent: 2330777 (1943-09-01), Elliott
patent: 2479812 (1949-08-01), Cechmanek
patent: 2588803 (1952-03-01), Coffey
patent: 2720718 (1955-10-01), Vaniman
patent: 2832172 (1958-04-01), Shelp
patent: 3228455 (1966-01-01), Jacobson
patent: 3367050 (1968-02-01), Doyle
patent: 3543425 (1970-12-01), Mulvey
LandOfFree
Roll display device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Roll display device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Roll display device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-405178