Paul Mccloud Stephens

US Patent:

D453244, Jan 29, 2002

Filed:

Oct 6, 2000

Appl. No.:

29/130791

Inventors:

John S. Murphy - Brookpark OH
David Di Nunzio - Mentor OH
Robert A. Matousek - Lakewood OH
Jeffrey M. Kalman - Cleveland Heights OH
Craig M. Saunders - Rocky River OH
Michael F. Wright - Stow OH
Richard C. Farone - Willoughby OH
Mark E. Cipolla - Chardon OH
Paul D. Stephens - Twinsburg OH
Robert A. Salo - Mentor OH

Assignee:

Royal Appliance Mfg. Co. - Glenwillow OH

International Classification:

1505

US Classification:

D32 31, D32 21, D32 18, D32 24

US Patent:

D453245, Jan 29, 2002

Filed:

Oct 6, 2000

Appl. No.:

29/130792

Inventors:

John S. Murphy - Brookpark OH
David Di Nunzio - Mentor OH
Robert A. Matousek - Lakewood OH
Jeffrey M. Kalman - Cleveland Heights OH
Craig M. Saunders - Rocky River OH
Michael F. Wright - Stow OH
Richard C. Farone - Willoughby OH
Mark E. Cipolla - Chardon OH
Paul D. Stephens - Twinsburg OH
Robert A. Salo - Mentor OH

Assignee:

Royal Appliance Mfg. Co. - Glenwillow OH

International Classification:

1505

US Classification:

D32 31, D32 21, D32 18, D32 24

US Patent:

D453403, Feb 5, 2002

Filed:

Jan 11, 2001

Appl. No.:

29/135440

Inventors:

Paul D. Stephens - Twinsburg OH
Jeffrey M. Kalman - Cleveland Heights OH
Charles J. Thur - Chardon OH

Assignee:

Royal Appliance Mfg. Co. - Glenwillow OH

International Classification:

1505

US Classification:

D32 30

US Patent:

D453595, Feb 12, 2002

Filed:

Jan 11, 2001

Appl. No.:

29/135436

Inventors:

Paul D. Stephens - Twinsburg OH
Jeffrey M. Kalman - Cleveland Hts. OH
Charles J. Thur - Chardon OH

Assignee:

Royal Appliance Mfg. Co. - Glenwillow OH

International Classification:

1505

US Classification:

D32 30

US Patent:

6436160, Aug 20, 2002

Filed:

Jan 11, 2001

Appl. No.:

09/758834

Inventors:

Paul D. Stephens - Twinsburg OH
Jeffrey M. Kalman - Cleveland Heights OH
Charles J. Thur - Chardon OH

Assignee:

Royal Appliance Mfg. Co. - Glenwillow OH

International Classification:

A47L 916

US Classification:

55337, 55419, 55429, 554591, 55503, 55DIG 3, 15350, 15353

Abstract:

A dirt cup assembly for a vacuum cleaner includes a dirt cup having a dust collection chamber, a first inlet duct, and a second inlet duct spaced from the first inlet duct. A dirt cup lid can be removably secured to the dirt cup, or can be associated with the vacuum cleaner upper assembly. The dirt cup lid includes a center portion extending over the dust collection chamber, a first wall portion extending over the first inlet duct, and a second wall portion extending over the second inlet duct. A filter assembly is removably positioned within the dust collection chamber.

US Patent:

6463622, Oct 15, 2002

Filed:

Jul 6, 2001

Appl. No.:

09/900557

Inventors:

Michael F. Wright - Stow OH
Charles J. Thur - Mentor OH
Brett Latimer - Mentor OH
Paul D. Stephens - Cleveland Heights OH
Mark E. Cipolla - Chardon OH
Craig J. Barbeck - North Royalton OH

Assignee:

Royal Appliance Mfg. Co. - Glenwillow OH

International Classification:

A47L 916

US Classification:

15353, 15350, 15352, 55DIG 3, 55337

Abstract:

A vacuum cleaner includes a first housing defining a cyclonic airflow chamber and a second housing defining a main suction opening that is in communication with an inlet of the cyclonic chamber. A suction source has a suction airstream inlet in communication with an outlet of the cyclonic chamber, and establishes a suction airstream that enters said main suction opening, passes through said cyclonic chamber, and passes to an outlet of said suction source. A substantial portion of particulates entrained in the suction airstream are separated therefrom when said suction airstream moves in a cyclonic fashion through the cyclonic chamber. A main filter assembly, preferably including filter medium comprising polytetrafluoroethylene (PTFE), is located in the cyclonic chamber so that a suction airstream moving from the main suction opening to the inlet of said suction source by way of the cyclonic airflow chamber passes through the filter medium thereof after said airstream moves in a cyclonic fashion within the cyclonic airflow chamber to remove residual particulates from the suction airstream before it leaves the cyclonic chamber. A HEPA filter can be provided to filter the suction airstream exhausted through the outlet of the suction source prior to the airstream being discharged from the vacuum.

US Patent:

6532621, Mar 18, 2003

Filed:

Jan 12, 2001

Appl. No.:

09/759437

Inventors:

Paul D. Stephens - Twinsburg OH
Jeffrey M. Kalman - Cleveland Heights OH
Steven J. Paliobeis - Painesville OH
Charles J. Thur - Chardon OH

Assignee:

Royal Appliance Mfg. Co. - Glenwillow OH

International Classification:

A47L 922

US Classification:

15412, 15350

Abstract:

A vacuum cleaner includes a cyclonic airflow chamber that facilitates the separation of contaminants from a suction airstream. The airflow chamber includes a chamber inlet and a chamber outlet, with the chamber inlet being fluidically connected with at least one of a suction nozzle and an above-the-floor cleaning tool. An exhaust filter housing includes a suction duct and an exhaust plenum, with the suction duct communicating with the chamber outlet. A suction source housing includes an open end communicating with the exhaust plenum and a closed end. A suction source is positioned within the suction source housing to define an annular exhaust flow passageway surrounding the suction source from the housing closed end to the housing open end. The suction source includes a suction inlet communicating with the suction duct and an exhaust outlet communicating with the housing closed end.

US Patent:

D480849, Oct 14, 2003

Filed:

Aug 22, 2002

Appl. No.:

29/166120

Inventors:

Paul D. Stephens - Twinsburg OH
Robert A. Salo - Mentor OH
Mark E. Cipolla - Chardon OH
Craig J. Barbeck - North Royalton OH
Jeffrey M. Kalman - Cleveland Heights OH
Craig M. Saunders - Rocky River OH
David J. Boll - Avon OH

Assignee:

Royal Appliance Mfg. Co. - Glenwillow OH

International Classification:

1505

US Classification:

D32 31