Roger D. Williams

Person

Dallas, NC, US

People

Patents Grantslast 30 patents

Information Patent Grant
Self-cleaning belt filter with edge sealing means and method
- Patent number 5,906,752
- Issue date May 25, 1999
- Pneumafil Corporation
- Roger D. Williams
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Dust collector with two stage self-cleaning of filter elements
- Patent number 5,584,913
- Issue date Dec 17, 1996
- Pneumafil Corporation
- Roger D. Williams
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Pleated belt filter with suction means to remove debris
- Patent number 5,560,835
- Issue date Oct 1, 1996
- Pneumafil Corporation
- Roger D. Williams
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Heat transfer method and apparatus
- Patent number 5,490,392
- Issue date Feb 13, 1996
- Pneumafil Corporation
- Roger D. Williams
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Filter media construction
- Patent number 5,346,519
- Issue date Sep 13, 1994
- Pneumafil Corporation
- Roger D. Williams
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Apparatus for filtering debris from a moving airstream
- Patent number 5,217,512
- Issue date Jun 8, 1993
- Pneumafil Corporation
- Roger D. Williams
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Dust collection with programmable cleaning air control
- Patent number 5,116,395
- Issue date May 26, 1992
- Pneumafil Corporation
- Roger D. Williams
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Dust collector with re-entrainment prevention walls
- Patent number 5,110,331
- Issue date May 5, 1992
- Pneumafil Corporation
- Roger D. Williams
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Air filter with horizontal filter elements
- Patent number 5,062,872
- Issue date Nov 5, 1991
- Pneumafil Corporation
- Roger D. Williams
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Snap-in filter unit
- Patent number 5,061,303
- Issue date Oct 29, 1991
- Pneumafil Corporation
- Roger D. Williams
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Dust collector with pneumatic seal
- Patent number 5,000,767
- Issue date Mar 19, 1991
- Pneumafil Corporation
- Stephen M. Sanders
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Self-cleaning filter
- Patent number 4,725,292
- Issue date Feb 16, 1988
- Pneumafil Corporation
- Roger D. Williams
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Roger D. Williams

Person

Patents Grantslast 30 patents

Self-cleaning belt filter with edge sealing means and method

Dust collector with two stage self-cleaning of filter elements

Pleated belt filter with suction means to remove debris

Heat transfer method and apparatus

Filter media construction

Apparatus for filtering debris from a moving airstream

Dust collection with programmable cleaning air control

Dust collector with re-entrainment prevention walls

Air filter with horizontal filter elements

Snap-in filter unit

Dust collector with pneumatic seal

Self-cleaning filter