Jeffrey D Mason

US Patent:

7420133, Sep 2, 2008

Filed:

Aug 23, 2007

Appl. No.:

11/844150

Inventors:

John Foster Farrow - Plymouth MI, US
Jeffrey J. Mason - Elgin IL, US

Assignee:

Welding Technology COrporation - Carol Stream IL

International Classification:

H01H 9/20

US Classification:

200 5015, 200 5012, 200 5013

Abstract:

A rotary circuit breaker door safety interlock for use with a power switch actuated by a rotating shaft installed in a enclosure with a hinged door is disclosed. The door safety rotary circuit breaker interlock functions both to prevent the enclosure door from being opened unless the power switch has first been turned OFF, and to prevent the power switch from being turned ON while the enclosure door is open. The door safety rotary circuit breaker interlock can be intentionally overridden to allow the enclosure door to be opened without turning the power switch OFF, and to allow the power switch to be turned ON while the enclosure door is open. The door safety rotary circuit breaker interlock is simple mechanically, requires no springs or deformable members for its operation, and can be adapted to many mounting variations in enclosures having doors that hinge at the left, right, top, or bottom.

US Patent:

20190329981, Oct 31, 2019

Filed:

Jul 10, 2019

Appl. No.:

16/507141

Inventors:

- Southfield MI, US
William Maybee - Southfield MI, US
Michael R. Dugas - Brighton MI, US
Michael L. Gentile - Macomb MI, US
Matthew P. Sosnowski - Brighton MI, US
Lei Zhou - Bloomfield Hills MI, US
Freddie Tappo - Sterling Heights MI, US
Jeffrey W. Mason - Lake Orion MI, US
Neil G. Greig - Auburn Hills MI, US

International Classification:

B65G 13/02
B65G 49/04
B65G 47/61
B65G 19/02
B65G 17/20
B62D 65/18
B65G 1/14
B65G 1/12
B65G 1/04
B65G 1/02
B65G 1/16

Abstract:

An inverted carrier lift and method is disclosed. The inverted carrier lift includes a trolley movable along an overhead conveyor and a carrier for supporting a workpiece to undergo an assembly or manufacturing process. The carrier is movable relative to the trolley from a raised position to a lowered position by a motor engaged with a lifting mechanism on the trolley. On rotation of the motor, the carrier and supported workpiece is lowered or raised to position the workpiece in the workstation for processing. The workpiece may be disengaged by the carrier for support of the workpiece by one of many different fixtures depending on the processing. Following processing, the workpiece is re-engaged by the carrier, moved to a raised position and the trolley is transferred to a subsequent workstation.

US Patent:

20170320669, Nov 9, 2017

Filed:

May 5, 2017

Appl. No.:

15/588326

Inventors:

- Southfield MI, US
William Maybee - Southfield MI, US
Michael R. Dugas - Brighton MI, US
Michael L. Gentile - Macomb MI, US
Matthew P. Sosnowski - Brighton MI, US
Lei Zhou - Bloomfield Hills MI, US
Freddie Tappo - Sterling Heights MI, US
Jeffrey W. Mason - Lake Orion MI, US
Neil G. Greig - Auburn Hills MI, US

International Classification:

B65G 13/02
B65G 1/14
B65G 1/04
B65G 1/02
B65G 1/16
B65G 1/12
B62D 65/18

Abstract:

An inverted carrier lift and method is disclosed. The inverted carrier lift includes a trolley movable along an overhead conveyor and a carrier for supporting a workpiece to undergo an assembly or manufacturing process. The carrier is movable relative to the trolley from a raised position to a lowered position by a motor mounted engaged with a lifting mechanism onboard the trolley. On rotation of the motor, the carrier and supported workpiece is lowered or raised to position the workpiece in the workstation for processing. The workpiece may be disengaged by the carrier for support of the workpiece by one of many different fixtures depending on the processing. Following processing, the workpiece is re-engaged by the carrier, moved to a raised position and the trolley is transferred to a subsequent workstation.