Instrument for measuring the cohesion force in dental cone crown

Details Instrument for measuring the cohesion force in dental cone crown Instrument for measuring the cohesion force in dental cone crown

1985-05-15

1987-07-14

Myracle, Jerry W.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

7386262, G01L 500

Patent

active

046794441

ABSTRACT:
An instrument for measuring the cohesion force between two interconnected components, such as inner and outer dental cone crowns, comprises a housing adapted to be manually grasped; a scale mechanism including a linearly extending helical spring accommodated in the housing and an indicator for displaying the extent of compression or expansion of the spring; and a divider-like gripper attached to one end of the spring and arranged for displacement relative to the housing. The gripper clamps one of the interconnected components, whereby upon pulling apart the two components, the indicator shows the extent of expansion of the helical spring for determining the pulling force exerted on the components at the moment of separation thereof.

REFERENCES:
patent: 2612042 (1952-09-01), Clarke
patent: 2728992 (1956-01-01), Frey
patent: 3665925 (1972-05-01), Dersookian
patent: 3718039 (1973-02-01), Bacon et al.

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