Rollover machine with safety braking mechanism
AssigneePalmer Manufacturing and Supply, Inc.
InventorsJohn S. Palmer, Marc Zerkle
Life of this patent
Estimating the term…
Abstract
A cylindrical drum is driven for rotation about its axis by a drive mechanism. A braking mechanism selectively applies braking forces to the drum to impede or brake its rotational movement. A first movement sensor senses movement of the drive mechanism while a second movement sensor senses movement of the drum. An electronic comparator circuit compares these sensed movements and generates a control signal when the drive mechanism movement and drum movement are not in synchronism. In response to such loss of synchronism, a control mechanism causes the braking mechanism to apply braking forces.
Claims18
A rollover machine comprising:
- a generally cylindrical drum driven for rotation about its axis by a drive mechanism;
- a braking mechanism configured to selectively apply braking forces to the drum to thereby impede rotational movement of the drum;
- a first movement sensor disposed to sense movement of the drive mechanism and producing a first output indicative of drive mechanism movement;
- a second movement sensor disposed to sense movement of the drum and producing a second output indicative of drum movement;
- an electronic comparator circuit that compares the first and second outputs and generates a control signal when the drive mechanism movement and drum movement are not in synchronism;
- and
- a control mechanism coupled to the comparator circuit and interfaced with the braking mechanism that causes the braking mechanism to apply braking forces to the drum when the control signal indicates the drive mechanism movement and drum movement are not in synchronism.
A rollover machine comprising:
- a generally cylindrical drum driven for rotation about its axis by a drive mechanism;
- a braking mechanism configured to selectively apply braking forces to the drum to thereby impede rotational movement of the drum;
- a control mechanism having a first sensing point coupled to the drive mechanism and a second sensing point coupled to the drum and interfaced with the braking mechanism that causes the braking mechanism to apply braking forces to the drum when the drive mechanism movement and drum movement are not in synchronism.
Dependencies are inferred from the claim text.