invisible hinge

invisible hinge

[in¦viz·ə·bəl ′hinj]
(design engineering)
A door hinge whose parts are not exposed when the door is closed.

invisible hinge

A hinge so constructed that no parts are exposed when the door is closed.
References in classic literature ?
The door moved upon invisible hinges, and Fouquet appeared.
An invisible hinge design allows a ring to open and close to fit perfectly at the base of the finger.
The piece incorporates a concealed mechanism - an invisible hinge design, which allows a ring to open and close to fit snugly at the base of the finger.
The SOSSentinal is a line of electronic monitoring hinges introduced for the SOSS Invisible Hinge line and made by Universal Industrial Products Co.
The piece incorporates a concealed mechanism - an invisible hinge design which allows a ring to open and close to fit snugly at the base of the finger.