Limitorque – The Worlds First Actuator.

In the 1920’s an inventor named Payne Dean was issued a patent for a machine which had the unique ability to sense and subsequently limit output force in a precisely controlled manner, he coined the acronym “Limitorque” which aptly described the ability of the device to “limit the torque” Below is a drawing of that first actuator, model D100, it became the foundation product with principals that are instilled in modern day actuators today, these principals have also been adopted by the majority of other actuator manufacturers, testament to the Limitorque original design.

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