David D Midkiff

US Patent:

6561201, May 13, 2003

Filed:

Apr 16, 2001

Appl. No.:

09/834862

Inventors:

David G. Midkiff - Fairfax VA 22031

International Classification:

B08B 302

US Classification:

1341044, 134123, 134135

Abstract:

Apparatus for washing the wheels and tires of a vehicle includes an elongated tank into which vehicle to be washed enters and exits, and a plurality of impediments spaced along the bottom of the tank. The impediments are in the form of hollow angle irons with apertures formed in at least one of their side walls, and means is provided for spraying water through the apertures in the direction of the vehicle wheels and tires as the vehicle passes over the angle irons.

US Patent:

6895978, May 24, 2005

Filed:

Aug 19, 2002

Appl. No.:

10/223015

Inventors:

David G. Midkiff - Fairfax VA, US

International Classification:

B08B003/04

US Classification:

134104, 134123, 134135, 134186

Abstract:

Apparatus for washing the wheels and tires of heavy duty vehicles includes a wash trough in which the wheels and tires are washed, and a refuse trough in which refuse from the vehicles is deposited for facile removal. The troughs are separated by a wall having a space therein through which debris from the wash trough is impelled, by a stream of water into the refuse trough.

US Patent:

7785423, Aug 31, 2010

Filed:

Oct 30, 2007

Appl. No.:

11/978394

Inventors:

David G. Midkiff - Fairfax VA, US

International Classification:

B08B 1/02

US Classification:

134 32, 134 33, 134 34, 134 42, 134123

Abstract:

A method and apparatus for removing debris from the propulsion system of a vehicle such as a battle tank, including a tank in which the vehicle is positioned, means for lifting the vehicle in the tank, and means to wash the vehicle's propulsion system while the vehicle is in raised position.

US Patent:

7980258, Jul 19, 2011

Filed:

Aug 18, 2010

Appl. No.:

12/806627

Inventors:

David G. Midkiff - Fairfax VA, US

International Classification:

B08B 3/00

US Classification:

134123, 15 531, 15 532, 15 533, 15 534

Abstract:

A method and apparatus for removing debris from the propulsion system of a vehicle such as a battle tank, including a tank in which the vehicle is positioned, means for lifting the vehicle in the tank, and means to wash the vehicle's propulsion system while the vehicle is in raised position.

US Patent:

57301646, Mar 24, 1998

Filed:

Nov 1, 1995

Appl. No.:

8/551729

Inventors:

David G. Midkiff - Fairfax VA
Antonio B. Caggiano - Springfield VA

Assignee:

Americlean of Virginia, Ltd. - Fairfax VA

International Classification:

B08B 302

US Classification:

1341042

Abstract:

A vehicle tire and track washing apparatus including an elongated trough with side walls and a bottom, and grates for supporting vehicles in the trough, in which the grates are supported by feet mounted at their outwardly extending edges substantially horizontal to the bottom. When the grates have been pivoted upwardly, the trough is free of impediment to the removal of debris washed from the vehicles tires or tracks.

US Patent:

49171259, Apr 17, 1990

Filed:

Apr 3, 1989

Appl. No.:

7/331984

Inventors:

David G. Midkiff - Falls Church VA

Assignee:

Marking Designs Inc. - Fredericksburg VA

International Classification:

B60S 304

US Classification:

134123

Abstract:

An in-the-ground truck tire washing appartaus having steel grates on which the truck rides. The grates are mounted above the bottom of a concrete trough and are hinged so that the trough can be opened to remove accumulated sediment from the bottom thereof. The grates cause flexing of the tire to enhance the cleansing motion of water which is above the level of the top surfaces of the grates. The top edges of the grates may be smooth or serrated. The serrated grates dislodge mud and dirt embedded in the treads of the tires. In a portable embodiment of the invention, a tire washing apparatus is mounted on a trailer bed and has driven rollers for rotating the truck tires while they are sprayed by jets of water. Additional roller assemblies are provided to prevent sideway movement of the tires.

US Patent:

51280310, Jul 7, 1992

Filed:

Apr 11, 1990

Appl. No.:

7/507498

Inventors:

David G. Midkiff - Falls Church VA

Assignee:

Marking Designs, Inc. - Dunn Loring VA

International Classification:

B01D 3505

US Classification:

210109

Abstract:

A self-propelled skimmer is provided for removing debris from the surface of a pool. A pump driven propulsion system intakes water at one end and forcefully expels it at the other end. A filter is located at the intake to trap debris for ultimate removal and disposal. To clear the entire surface of the pool, the expulsion of the liquid is randomly altered in a center-right-left sweep. A pressure sensitive transducer or switch is provided at the front of the skimmer to activate a reverse movement if the skimmer front impacts a pool edge or other obstacle.

US Patent:

49795368, Dec 25, 1990

Filed:

Apr 12, 1990

Appl. No.:

7/507921

Inventors:

David G. Midkiff - Falls Church VA

Assignee:

Marking Designs Inc. - Fredericksburg VA

International Classification:

B60S 304

US Classification:

134123

Abstract:

A portable tire washing apparatus is mounted on a towable trailer bed or on a platform and has drivable rollers for rotating truck tires while they are sprayed by jets of water. Additional roller assemblies or bumpers are provided to prevent sideway movement of the tires. The platform-mounted apparatus may be installed on level ground or in a depression dug in the ground.