Arthur C Lee

US Patent:

41130766, Sep 12, 1978

Filed:

Jul 6, 1976

Appl. No.:

5/702396

Inventors:

Arthur L. Lee - Columbus OH
Arthur B. Coval - Columbus OH

Assignee:

A. L. Lee Corporation - Columbus OH

International Classification:

B60K 2900

US Classification:

192 4A

Abstract:

A motor drives a pump to provide fluid under pressure in a closed hydraulic circuit through a pilot valve to a change speed clutch valve and a directional valve of a multi-speed transmission for an electrically powered vehicle, such as a mine haulage vehicle. The multi-speed transmission is connected by an output shaft to the driven wheels of the vehicle. A braking force is applied to the driven wheels by a hydraulically operated service brake to effect routine stopping of the vehicle. Under emergency conditions an emergency brake applies a braking force to the driven wheels by operation of a panic bar positioned in the operator's compartment. A brake valve connected to the panic bar maintains a preselected fluid pressure in the hydraulic circuit of the emergency brake to retain the brake in a released position. The hydraulic circuit is interlocked through the pilot valve to the transmission clutch and direction valves. Depressing the panic bar actuates the brake valve to release the emergency brake and simultaneously actuate the pilot valve to interrupt fluid flow to the respective valves of the transmission.

US Patent:

41924053, Mar 11, 1980

Filed:

Nov 13, 1978

Appl. No.:

5/960050

Inventors:

Arthur L. Lee - Columbus OH
Arthur B. Coval - Columbus OH

Assignee:

A. L. Lee Corporation - Columbus OH

International Classification:

F16D 5902

US Classification:

188170

Abstract:

A brake mechanism is mounted on a vehicle and includes a housing having a slot for receiving a rotatable disc to be braked. The upper portion of the housing includes a chamber for receiving pressurized fluid from a source. A spring actuated piston is slidably and sealingly disposed within the chamber. A removable spring assembly is positioned forwardly of the actuating piston and exerts a preselected spring force thereon. When the fluid pressure acting against the piston is less than the spring force applied to the piston, the piston moves axially in the chamber and a rod portion thereof contacts a lever that is pivotally mounted to the housing. The lever pivots on the housing to axially displace a brake applicator piston that is movably positioned in the housing adjacent to the rotatable disc. A plurality of braking pads are secured to the end portion of the applicator piston and additional braking pads are secured to the brake housing opposite the disc. Displacement of the applicator piston moves the braking pads into braking engagement with the disc to overcome rotation of the disc and stop the vehicle.

US Patent:

41380010, Feb 6, 1979

Filed:

Jul 27, 1977

Appl. No.:

5/819461

Inventors:

Arthur L. Lee - Columbus OH
Arthur B. Coval - Columbus OH

Assignee:

A. L. Lee Corporation - Columbus OH

International Classification:

F16D 5902

US Classification:

188170

Abstract:

A brake mechanism is mounted on a vehicle and includes a housing having a slot for receiving a rotatable disc to be braked. The upper portion of the housing includes a chamber for receiving pressurized fluid from a source. A spring actuated piston is slidably and sealingly disposed within the chamber. A removable spring assembly is positioned forwardly of the actuating piston and exerts a preselected spring force thereon. When the fluid pressure acting against the piston is less than the spring force applied to the piston, the piston moves axially in the chamber and a rod portion thereof contacts a lever that is pivotally mounted to the housing. The lever pivots on the housing to axially displace a brake applicator piston that is movably positioned in the housing adjacent to the rotatable disc. A plurality of braking pads are secured to the end portion of the applicator piston and additional braking pads are secured to the brake housing opposite the disc. Displacement of the applicator piston moves the braking pads into braking engagement with the disc to overcome rotation of the disc and stop the vehicle.

US Patent:

42431263, Jan 6, 1981

Filed:

Apr 10, 1978

Appl. No.:

5/895150

Inventors:

Arthur L. Lee - Columbus OH
Arthur B. Coval - Columbus OH

Assignee:

A. L. Lee Corporation - Columbus OH

International Classification:

B60K 4120

US Classification:

192 2

Abstract:

A motor drives a pump to provide fluid under pressure in a closed hydraulic circuit through a pilot valve to a change speed clutch valve and a directional valve of a multi-speed transmission for an electrically powered vehicle, such as a mine haulage vehicle. The multi-speed transmission is connected by an output shaft to the driven wheels of the vehicle. A braking force is applied to the driven wheels by a hydraulically operated service brake to effect routine stopping of the vehicle. Under emergency conditions an emergency brake applies a braking force to the driven wheels by operation of a panic bar positioned in the operator's compartment. A brake valve connected to the panic bar maintains a preselected fluid pressure in the hydraulic circuit of the emergency brake to retain the brake in a released position. The hydraulic circuit is interlocked through the pilot valve to the transmission clutch and direction valves. Depressing the panic bar actuates the brake valve to release the emergency brake and simultaneously actuate the pilot valve to interrupt fluid flow to the respective valves of the transmission.

US Patent:

40747840, Feb 21, 1978

Filed:

Aug 14, 1974

Appl. No.:

5/497294

Inventors:

Arthur L. Lee - Columbus OH
Arthur B. Coval - Columbus OH

Assignee:

FMC Corporation - Chicago IL

International Classification:

B62D 6110

US Classification:

180 24

Abstract:

The haulage vehicle has a frame member with separate front and rear sections that are connected to each other by universal means and are free to articulate in a plurality of planes. The frame rear section has a transversely mounted rear axle adjacent the rear portion on which a pair of propelling wheels are mounted and a transversely mounted intermediate axle adjacent the front portion of the frame rear section on which a pair of intermediate propelling wheels are mounted. The frame front section has a transversely mounted front axle on which a pair of front propelling wheels are mounted. Separate propelling motors are mounted adjacent each of the propelling wheels and are drivingly connected to the adjacent propelling wheel. All of the propelling wheels are steerable and the drive motors are movable therewith. A body member is supported on the frame rear section and a boom member is supported on the frame front section.

US Patent:

42431271, Jan 6, 1981

Filed:

Sep 11, 1978

Appl. No.:

5/941201

Inventors:

Arthur L. Lee - Columbus OH
Arthur B. Coval - Columbus OH

Assignee:

A. L. Lee Corporation - Columbus OH

International Classification:

B60K 4120

US Classification:

192 4A

Abstract:

A motor drives a pump to provide fluid under pressure in a closed hydraulic circuit through a pilot valve to a change speed clutch valve and a directional valve of a multi-speed transmission for an electrically powered vehicle, such as a mine haulage vehicle. The multi-speed transmission is connected by an output shaft to the driven wheels of the vehicle. A braking force is applied to the driven wheels by a hydraulically operated service brake to effect routine stopping of the vehicle. Under emergency conditions an emergency brake applies a braking force to the driven wheels by operation of a panic bar positioned in the operator's compartment. A brake valve connected to the panic bar maintains a preselected fluid pressure in the hydraulic circuit of the emergency brake to retain the brake in a released position. The hydraulic circuit is interlocked through the pilot valve to the transmission clutch and direction valves. Depressing the panic bar actuates the brake valve to engage the emergency brake and simultaneously actuate the pilot valve to interrupt fluid flow to the respective valves of the transmission.

US Patent:

20230000869, Jan 5, 2023

Filed:

Jun 7, 2021

Appl. No.:

17/340589

Inventors:

- Boston MA, US
- Bethesda MD, US
Philip Edward Sanderson - Bethesda MD, US
Jian-Kang Jiang - Columbia MD, US
Khalida Shamim - Gaithersburg MD, US
Wei Zheng - Potomac MD, US
Xiuli Huang - Potomac MD, US
Gregory Tawa - Doylestown PA, US
Arthur Lee - San Jose CA, US
Asaf Alimardanov - North Bethesda MD, US
Junfeng Huang - Woodstock MD, US

International Classification:

A61K 31/519
A61P 19/08
A61K 31/5377
A61K 31/551
A61K 31/675
A61K 45/06
C07D 487/04
C07D 519/00
C07F 9/6561

Abstract:

The present invention provides small-molecule inhibitors of BMP signaling and compositions and methods for inhibiting BMP signaling. These compounds and compositions may be used to modulate cell growth, differentiation, proliferation, and apoptosis, and thus may be useful for treating diseases or conditions associated with BMP signaling, including inflammation, cardiovascular disease, hematological disease, cancer, and bone disorders, as well as for modulating cellular differentiation and/or proliferation. These compounds and compositions may also be used to treat subjects with Sjögren's syndrome, or diffuse intrinsic pontine glioma (DIPG).

US Patent:

20200179389, Jun 11, 2020

Filed:

Apr 26, 2018

Appl. No.:

16/608489

Inventors:

- Boston MA, US
- Bethesda MD, US
Philip Edward Sanderson - Bethesda MD, US
Jian-Kang Jiang - Columbia MD, US
Khalida Shamim - Gaithersburg MD, US
Wei Zheng - Potomac MD, US
Xiuli Huang - Potomac MD, US
Gregory Tawa - Doylestown PA, US
Arthur Lee - San Jose CA, US
Asaf Alimardanov - North Bethesda MD, US
Junfeng Huang - Woodstock MD, US

International Classification:

A61K 31/519
A61K 45/06
A61P 19/08
C07D 487/04
C07D 519/00
C07F 9/6561
A61K 31/551
A61K 31/5377
A61K 31/675

Abstract:

The present invention provides small-molecule inhibitors of BMP signaling and compositions and methods for inhibiting BMP signaling. These compounds and compositions may be used to modulate cell growth, differentiation, proliferation, and apoptosis, and thus may be useful for treating diseases or conditions associated with BMP signaling, including inflammation, cardiovascular disease, hematological disease, cancer, and bone disorders, as well as for modulating cellular differentiation and/or proliferation. These compounds and compositions may also be used to treat subjects with Sjögren's syndrome, or diffuse intrinsic pontine glioma (DIPG).