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US 4,787,246 AGranted
Bidirectional shock sensor
AssigneeFuji Photo Film Co., Ltd.
InventorsTomoaki Komatsu, Hiroshi Yamaguchi
Life of this patent
Estimating the term…
Abstract
A bidirectional shock sensor in which a slidable weight is slidably fit in a container. Elastic projections on the ends of the weight face pressure-sensitive sheets placed on the walls of the container so as to record the impact acceleration of the weight. The pressure-sensitive sheet can be fixed to a transparent developer sheet so that the impact record can be immediately viewed through transparent walls of the container.
Claims5
A bidirectional shock sensor, comprising:
- a container;
- an impact block slidably fitted within and along first walls of said container;
- elastic members fixed on ends of said impact block facing opposed second walls of said container;
- and
- pressure-sensitive color-changing sheets attached to said second walls and selectively contactable with said elastic members.
2 more elements
A bidirectional shock sensor, comprising:
- a container;
- an impact block slidably provided within and along first walls of said container;
- elastic members provided on ends of said impact block facing opposed second walls of said container;
- pressure-sensitive sheets attached to said second walls;
- and
- removable stopper pins detachably connectable between said container and said impact block
3 more elements
Dependencies are inferred from the claim text.