Device for showing receipt of predetermined shock
AssigneeDetectors, Inc.
InventorUlyss Ray Rubey
Life of this patent
Estimating the term…
Abstract
A device for affording an indication when a predetermined mechanical shock has been received, characterized by a base, or means for attaching to a container to be monitored; structure for measuring when a predetermined acceleration has been received by the container and the device; and an indicator for indicating to an observer that the shock has been received. Disclosed are devices having (1) a mechanical structure with a breaking point; (2) a mechanical structure with a biasing means; and (3) a structure employing an interfacial tension phenomenon. The devices may be of the "go-no go" type or may afford an indication and history of the shock, or acceleration forces, received. Also disclosed are the specific details of the respective embodiments.
Claims9
A device for affording an indication if a predetermined acceleration has been received by a container, article, object and the like comprising:
- a. attachment means for attaching said device to the container for monitoring if said predetermined acceleration has been received;
- b. measuring means for measuring if said predetermined acceleration has been received;
- said measuring means being connected with said attachment means;
- and comprising:
- i. a structure for holding two materials adjacent each other in a configuration so as to define an interfacial barrier therebetween;
- ii. at least two materials disposed in said structure, at least one of said materials being a liquid in the form of a reservoir that will deform responsive to acceleration and return to its original shape when said acceleration ceases if said acceleration is below said predetermined acceleration;
- said liquid reservoir being disposed adjacent the other said material to effect an interfacial tension and define an interfacial barrier therebetween, said interfacial tension and said structure being chosen such that said predetermined acceleration effects rupture of said interfacial barrier such that at least a droplet of said liquid breaks away from said liquid reservoir;
- iii. closures sealingly connected with said structure sealingly holding said materials therewithin so as to prevent flow of said liquid from said structure;
- and
- c. indicator means comprising visual means disposed adjacent said other material and said interfacial barrier for indicating when said interfacial barrier has been ruptured by said predetermined acceleration;
- said visual means being adapted for enhancing the visual indication that at least said droplet has separated from said liquid reservoir.
Dependencies are inferred from the claim text.