Dennis J Mancl

US Patent:

6952062, Oct 4, 2005

Filed:

Jul 2, 2004

Appl. No.:

10/884747

Inventors:

Dennis J. Mancl - Bluff City TN, US
Leonard J. Lavasser - Bristol TN, US

International Classification:

H02K005/00
H02K005/16

US Classification:

310 90, 310 85, 310 91

Abstract:

A motor, particularly suited for carpet cleaners and other wet vacuuming appliances, includes a motor housing with a stepped bore. The stepped bore is part of a bearing/seal assembly that simultaneously clamps a bearing and compresses a seal member. The assembly maintains the motor's commutator at a substantially fixed axial location relative to the commutator's brushes, regardless of the extent to which the seal is compressed and regardless of any subsequent creep of the seal.

US Patent:

6987338, Jan 17, 2006

Filed:

Dec 29, 2003

Appl. No.:

10/747765

Inventors:

Leonard J. Lavasser - Bristol TN, US
Dennis J. Mancl - Bluff City TN, US

International Classification:

A47L 9/28

US Classification:

310 71, 310 68 R, 310 89, 310 90, 310 43, 15412

Abstract:

For a motor having a plastic bracket, a single-piece ground strap grounds both the motor's stator and rotor. The ground strap has one end fastened to a bearing retainer of the motor, an opposite end connected to a ground wire, and an intermediate section that is compressed between the stator and the housing. The end connected to the bearing retainer grounds the rotor, and the intermediate section grounds the stator. The ground strap is fastened to the motor using fasteners that already exist in an otherwise identical but ungrounded motor. In some cases, a combination bearing retainer and ground strap is blanked and formed as a unitary piece.

US Patent:

7265468, Sep 4, 2007

Filed:

Nov 22, 2005

Appl. No.:

11/285667

Inventors:

Dennis J. Mancl - Bluff City TN, US
Leonard J. Lavasser - Bristol TN, US

International Classification:

H02K 5/16

US Classification:

310 90, 310 54, 310 89, 417423, 415180

Abstract:

A high-speed universal motor running at over 10,000 or even over 20,000 rpm includes a non-rubbing water repellent sleeve that protects the bearings from moisture damage. Rather than having a sliding contact seal that can quickly wear out under such high speeds, the sleeve is made of material having a low solid surface energy so that the seal material itself repels waters on its own. TEFLON is the preferred material, which is relatively soft, so to prevent the compressibility of the seal from affecting the axial positioning of parts on the motor shaft, the seal is installed such that the seal does not contribute to the critically precise positioning of the shaft and the parts mounted to it. In some embodiments, for example, the relatively soft seal simply overlies a much stiffer, accurately machined metal spacer.

US Patent:

7518274, Apr 14, 2009

Filed:

Jun 12, 2006

Appl. No.:

11/451203

Inventors:

Dennis J. Mancl - Bluff City TN, US
Leonard J. Lavasser - Bristol TN, US

International Classification:

H02K 5/14
H02K 5/22
H02K 23/66

US Classification:

310 71, 310242, 310249

Abstract:

A universal motor comprises a stator interposed between a housing and a novel plastic bracket. The plastic bracket is a unitary piece that not only defines a plurality of terminal receptacles but also supports the motor's outboard bearing. In some embodiments, the plastic bracket also includes an integral post for supporting a spring that urges a carbon brush against the motor's commutator.

US Patent:

RE41212, Apr 13, 2010

Filed:

Sep 26, 2008

Appl. No.:

12/286089

Inventors:

Leonard J. Lavasser - Bristol TN, US
Dennis J. Mancl - Bluff City TN, US

International Classification:

B01D 45/14

US Classification:

55406, 96333, 96359

Abstract:

A motor-driven blower, particularly suited for carpet cleaners and other wet vacuuming appliances, includes a rotating separator cup to impede water droplets and foam from being drawn into the blower. The separator cup is removably connected to a spider bracket that is mounted more permanently to one end of the motor shaft. Since the separator cup is not directly connected to the motor shaft, the cup can be removed without disturbing the rest of the blower. Thus, the blower can be run either with or without the separator cup. Moreover, by not attaching the separator cup directly to the motor shaft, the shaft can be made shorter to minimize vibration and noise at high rpm's.

US Patent:

8387898, Mar 5, 2013

Filed:

May 13, 2010

Appl. No.:

12/800328

Inventors:

Scott C. Mancl - Elizabethton TN, US
Dennis J. Mancl - Bluff City TN, US

International Classification:

A62C 13/62
A62C 5/02
F16C 33/76
B05B 7/32
B05B 7/12
B05B 7/02

US Classification:

239340, 384486, 239310, 239337, 239526, 239407

Abstract:

A paint sprayer includes a motor-driven multi-stage turbine for compressing air, which subsequently flows through a venturi in a paint gun to draw in paint or some other liquid from a canister. To prevent the high-pressure air from expelling lubricant from the motor's inboard bearing, a pressure responsive annular seal axially deflects and sealingly engages an axial face of the bearing. To avoid subjecting the seal and bearing to excess air pressure and temperature created by the turbine, a bypass bleed line diverts some air to atmosphere when the paint gun is closed.

US Patent:

20030062723, Apr 3, 2003

Filed:

Jun 28, 2002

Appl. No.:

10/184423

Inventors:

Dennis Mancl - Bluff City TN, US
Robert Howard - Palo Alto CA, US
Daniel Kennedy - San Francisco CA, US
Jeffrey Salazar - Palo Alto CA, US
Jeffrey Smith - San Mateo CA, US

International Classification:

H02P009/00

US Classification:

290/00100A

Abstract:

A portable power supply for electrical appliances is disclosed that comprising of a wearable frame, a power generation unit, a fuel supply container, and an electrical appliance which is supplied electrical power from the electrical power generation unit and may be attached to the frame. Also disclosed is a method of using a portable electrical power unit with an appliance by storing a fuel supply in a container, converting the fuel to electrical power using an electrical power generator, operating an electrical appliance, the operator carrying the container and the electrical power generator while using the appliance.

US Patent:

52967697, Mar 22, 1994

Filed:

Jan 24, 1992

Appl. No.:

7/825613

Inventors:

Paul W. Havens - Abingdon VA
Dennis J. Mancl - Bluff City TN

Assignee:

Electrolux Corporation - Marietta GA

International Classification:

H02K 516
H02K 515
H02K 906
F04B 3912

US Classification:

310 90

Abstract:

An air guide and motor housing assembly for use in domestic and commercial vacuum cleaners is described wherein the assembly comprises an air guide having a center detail for engaging the motor housing to facilitate assembly of the components, and reduce creep, turbulence and vibration-induced noise. An air guide for use with a centrifugal fan is described wherein the air guide is mounted on a motor bracket using the same rivets that fasten a bearing assembly to the motor bracket. Alternative embodiments of the device are also described in which a step in an inner fan housing cooperates with a step projecting from the air guide to securely fasten the air guide to the motor assembly, and a center detail on the air guide engages the motor housing to secure the air guide thereto, thereby providing the same advantages. Methods are provided for assembling an air guide and a motor housing together using fewer parts and assembly steps than conventional arrangements, and which permit reduction in the overall noise level of the finished appliance.