Card – picture – or sign exhibiting – Changing exhibitor – Fluid operated
Patent
1989-05-08
1990-03-27
Mancene, Gene
Card, picture, or sign exhibiting
Changing exhibitor
Fluid operated
40602, G09F 1102
Patent
active
049108980
ABSTRACT:
A sign carrying device having a rotatable super-structure with panels pivotally mounted therein and which pivot in response to wind pressure applied on their surfaces. A footing has a base section mounted therein which rotatably receives an upper section with the superstructure mounted thereon. Shear pins placed between the upper and base sections prevent rotation of the upper section until a predetermined rotational torque is placed thereon. The superstructure mounted on the upper section has a plurality of panels pivotally mounted thereon with spring hinges which allow deflection of the panels in response to wind pressure on the panel surfaces to allow the wind to pass through the superstructure and reduce the risk of damage to the device. The spring hinges cause the panels to return to their normally closed position when there is little or no wind.
REFERENCES:
patent: 622115 (1899-03-01), Carlson
patent: 1361911 (1920-12-01), Schwesinger
patent: 1571790 (1926-02-01), Camden
patent: 1974597 (1934-09-01), Berning et al.
patent: 2030769 (1936-02-01), Slattengren
patent: 2417122 (1947-03-01), Pearson
patent: 3579880 (1971-05-01), Murphy
patent: 3638341 (1972-02-01), Holmes
patent: 3921813 (1975-11-01), Cimino
patent: 4253576 (1981-03-01), Ford et al.
patent: 4503631 (1985-03-01), Kelly
Bode George A.
Lynch Michael
Mancene Gene
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