Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Hinge – Resiliently biased hinge
Patent
1992-10-15
1994-08-02
Bradley, P. Austin
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Hinge
Resiliently biased hinge
16 75, E05F 108
Patent
active
053333551
ABSTRACT:
An apparatus and related method for use to automatically close display doors for display cases and the like is disclosed which allows the amount of door closing preloading bias to be easily and quickly adjusted with a high degree of precision to vary the amount of force used to close a display door. A display pivot member having an adjustment wheel is placed into engagement with a base member having a mechanism allowing rotation of the display pivot member only in a direction increasing the preloading bias on a biasing member located in the display door and used to close the display door. The base member includes an access slot to release the display pivot member, allowing it to rotate in the opposite direction to release the bias on the biasing member to allow the adjustment operation to be redone.
REFERENCES:
patent: 998692 (1911-07-01), Keene et al.
patent: 1334563 (1920-03-01), Shelton
patent: 3339225 (1967-09-01), Booth
patent: 3507074 (1970-04-01), Gallegos
patent: 3702491 (1972-11-01), Pelletiere
patent: 4692963 (1987-09-01), Barroero
patent: 4696078 (1987-09-01), Stromquist
patent: 4905347 (1990-03-01), Worth
Beswick Duane
Enriquez Robert
Bradley P. Austin
Mah Chuck Y.
Posta Jr. John J.
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