James D Pardee, 71Columbus, WI

8393451, Mar 12, 2013

Jan 12, 2012

13/348994

James A. Pardee - Janesville WI, US
Charles F. Magers - Fort Wayne IN, US
George P. Gill - Caledonia IL, US

Warner Electric Technology LLC - Braintree MA

F16D 67/06

192 18B, 192 8431, 192 845, 192 84961, 1921111

A rotational coupling device for use as a clutch, a brake, or a combination clutch and brake is provided having structure to compensate for wear on braking surfaces. The device includes an armature coupled to an output member and movable between positions of engagement with a rotor and a brake plate. The brake plate is coupled to a stationary field shell that houses a conductor on one side of the rotor opposite the armature and brake plate. The brake plate is axially spaced from the field shell and a removable shim or adjustable spacer is disposed between the brake plate and the field shell. Removal of the shim or adjustment of the spacer permit movement of the brake plate towards the field shell to compensate for wear in any of the clutch or brake engagement surfaces of the device.

8499916, Aug 6, 2013

Jul 14, 2011

13/182921

James A. Pardee - Janesville WI, US
Michael Humy - Rockford IL, US

Warner Electric Technology LLC - Braintree MA

F16D 27/112
F16D 27/14
F16D 67/06

192 84961, 192 18 B

A rotational coupling device is provided that minimizes flux leakage from a magnetic circuit that engages the device. The device includes a rotor and an armature defining opposed engagement surfaces. The rotor, the armature and a field shell disposed on one side of the rotor and housing an electrical conductor comprise members of a magnetic circuit that, upon energization of the conductor, draws the armature into engagement with the rotor. A torque transmission member is coupled to the armature and supported by a bearing. In one embodiment a sleeve is disposed radially inwardly of the bearing. To prevent flux leakage through the torque transmission member, the sleeve has a magnetic permeability that is lower than a magnetic permeability of the members of the magnetic circuit. In another embodiment, a support cup of the torque transmission member has a radially outwardly turned flange to distance the cup from the rotor.

2010011, May 13, 2010

Nov 11, 2008

12/268739

James A. Pardee - Janesville WI, US
Pankaj C. Modi - Rockford IL, US
Charles F. Magers - Fort Wayne IN, US
George P. Gill - Caledonia IL, US

F16D 27/10

192 84961

A rotational coupling device for use as a clutch and/or brake is provided having structure to compensate for wear on braking surfaces. The device includes an armature coupled to an output member and movable between positions of engagement with a rotor and a brake plate. The brake plate is coupled to a stationary field shell that houses a conductor on one side of the rotor opposite the armature and brake plate. The brake plate is axially spaced from the field shell and a removable shim or adjustable spacer is disposed between the brake plate and the field shell. Removal of the shim or adjustment of the spacer permit movement of the brake plate towards the field shell to compensate for wear in the clutch and/or brake engagement surfaces of the device.

2013004, Feb 28, 2013

Aug 24, 2012

13/594240

James A. Pardee - Janesville WI, US
George P. Gill - Caledonia IL, US

Warner Electric Technology LLC - Braintree MA

F16D 13/74

192 663

A rotational coupling device having improved lubrication is provided. The device includes a hub disposed about a rotational axis. A rotor is supported on, and configured for rotation about, the hub and defines a radially extending wall and a chamber on one side of the wall surrounding said hub and defining a sump containing a fluid. An armature is supported on the hub for rotation therewith within the chamber and axially spaced from the wall. Clutch plates are disposed between the rotor wall and armature and rotatably coupled to the rotor or armature. A field shell is disposed on an opposite side of the rotor wall from the armature and houses a conductor. One or more tubes have an end submerged in the fluid and extend through apertures in the armature. Rotation of said armature draws fluid through the tubes and onto the clutch plates.

2013004, Feb 28, 2013

Aug 24, 2012

13/594233

James A. Pardee - Janesville WI, US
George P. Gill - Caledonia IL, US

Warner Electric Technology LLC - Braintree MA

F16D 13/52
F16D 13/02
F16D 13/46

192 6632, 192 663

A rotational coupling device is configured for vertical orientation. The device includes a hub disposed about a rotational axis. A rotor is supported on, and configured for rotation about, the hub and defines a radially extending wall. An armature is supported on the hub for rotation therewith and axially spaced from the wall. Clutch plates are disposed between the rotor wall and armature and rotatably coupled to the rotor or armature. A field shell is disposed on an opposite side of the rotor wall from the armature and houses a conductor. The armature and clutch plates move in a first axial direction towards the rotor wall when the conductor is energized and in a second axial direction when the conductor is subsequently deenergized. At least one of the hub and rotor defines means for limiting movement of a corresponding one of the clutch plates in the second axial direction.

2013004, Feb 28, 2013

Aug 24, 2012

13/594252

James A. Pardee - Janesville WI, US
George P. Gill - Caledonia IL, US

Warner Electric Technology LLC - Braintree MA

F16D 67/06

192 18 B

A rotational coupling device is provided with an integrated rotor and brake disc to simplify design of the device and remove liquids from the device when used in a wet environment. The rotor is configured for rotation about a rotating hub and includes a first member defining one pole of the rotor and a second member defining a second pole of the rotor and a braking surface. The second member is coupled to the first member, but axially movable relative to the first member. During clutch engagement, an electromagnetic circuit used to engage the clutch urges the second member into engagement with the first member for rotation. When the clutch is disengaged, the second member disengages from the first member to create a fluid flow path between the members and engages a brake plate to halt rotation of the rotor.

5033595, Jul 23, 1991

Jun 8, 1990

7/535428

James A. Pardee - Janesville WI

Dana Corporation - Toledo OH

F16D 6702
A01D 6908

192 18R

A clutch/brake unit especially adapted for use with a walk-behind lawn mower and having a braking element which applies a brake and disengages a clutch when shifted axially in response to turning of a rotary actuator in one direction. A single anti-rotation bolt extends between the braking element and the engine of the mower to prevent rotation of the braking element when the brake is applied. Angularly spaced springs urge the braking element axially toward the rotary actuator and are located above the actuator so as to be shielded from lawn trash.

5971121, Oct 26, 1999

Apr 30, 1998

9/070068

James Alain Pardee - Janesville WI

F16D 6706

192 18B

An improved brake/clutch unit for use in a riding lawnmower or another vehicle is provided. The unit includes a rotor assembly disposed radially outwardly of a longitudinally extending input shaft, an armature assembly, and a field shell assembly. The rotor assembly includes a rotor disc disposed radially outwardly of the input shaft. The armature assembly includes an armature axially-spaced from the rotor disc and an output member connected to the armature. The field shell assembly includes a field shell that is fixed against rotation, a pair of permanent magnets, first and second pole pieces having relatively low magnetic reluctance, a third pole piece having a relatively high magnetic reluctance, and a field coil. The field shell includes a radially outwardly extending flange on which all of the pole pieces are disposed. The magnets are disposed between the flange and the first and second pole pieces while the third pole piece is disposed between the first and second pole pieces.