DEVICE DELAYED ACTION TO RELEASE ONE OR MORE UNITS OF ACTIVE INGREDIENTS FOR RUMINANTS, SUCH AS MEDICINES, SEVEN SUPPLEMENTS OR GROWTH PROMOTERS.

摘要

A device for effecting the delayed release of an active ingredient comprises a container and, within, a dispersible unit of ingredient, a removable closure and a electrical control circuit for removal of said closure at a designated time to release the active ingredient. Several assemblies are combined to control the administration of veterinary medicaments to ruminant animals as a specific application of the invention.