V. Walter Hafner

Person

Whittier, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Extractor valve assembly
- Patent number 6,394,411
- Issue date May 28, 2002
- AcornVac, Inc.
- V. Walter Hafner
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Activator valve for providing a timed vacuum at an output port
- Patent number 6,311,718
- Issue date Nov 6, 2001
- Acorn Engineering Co.
- V. Walter Hafner
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Wash basins
- Patent number D411876
- Issue date Jul 6, 1999
- Acorn Engineering Co.
- V. Walter Hafner
- D23 - Environmental heating and cooling
Information Patent Grant
Blow out toilet with low water volume usage
- Patent number 5,067,181
- Issue date Nov 26, 1991
- Acorn Engineering Company
- V. Walter Hafner
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Sprayhead with built-in soap system for multi person washfountains
- Patent number 4,698,860
- Issue date Oct 13, 1987
- Acorn Engineering Company
- V. Walter Hafner
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Vandal resistant and tamper proof pneumatic push button assembly fo...
- Patent number 4,682,533
- Issue date Jul 28, 1987
- Acorn Engineering Company
- V. Walter Hafner
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Dual operated metering valve connected to both a hand operated push...
- Patent number 4,630,644
- Issue date Dec 23, 1986
- Acorn Engineering Company
- V. Walter Hafner
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Rotating cap, screen and mounting means for protecting air metering...
- Patent number 4,630,638
- Issue date Dec 23, 1986
- Acorn Engineering Company
- V. Walter Hafner
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Combined wall construction form and plumbing fixture mounting devic...
- Patent number 4,580,300
- Issue date Apr 8, 1986
- Acorn Engineering Company
- Earl L. Morris
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Vandal-resistant security view port
- Patent number 4,571,901
- Issue date Feb 25, 1986
- Acorn Engineering Company
- Earl L. Morris
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Tamper-proof lavatory and toilet unit
- Patent number D281714
- Issue date Dec 10, 1985
- Earl L. Morris
- D23 - Environmental heating and cooling
Information Patent Grant
Plenum/vacuum chamber with duct connection for installation in cabi...
- Patent number 4,512,241
- Issue date Apr 23, 1985
- Acorn Engineering Company
- Earl L. Morris
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Vandal-resistant and tamper-proof plenum or vacuum chamber security...
- Patent number 4,505,189
- Issue date Mar 19, 1985
- Acorn Engineering Company
- Earl L. Morris
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Security mirror replaceable from pipe chase
- Patent number 4,492,430
- Issue date Jan 8, 1985
- Acorn Engineering Company
- Earl L. Morris
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Fabricated floor drain with large stepped flange for elastomeric tr...
- Patent number 4,462,123
- Issue date Jul 31, 1984
- Acorn Engineering Company
- Earl L. Morris
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Wall sleeve and installation jig for multiple adjacent fixture moun...
- Patent number 4,434,516
- Issue date Mar 6, 1984
- Acorn Engineering Company
- Earl L. Morris
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Fabricated floor drain with combination anchoring and seepage contr...
- Patent number 4,423,527
- Issue date Jan 3, 1984
- Acorn Engineering
- Earl L. Morris
- E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

Information Patent Application
EXTRACTOR VALVE ASSEMBLY
- Publication number 20020070366
- Publication date Jun 13, 2002
- V. Walter Hafner
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

V. Walter Hafner

Person

Patents Grantslast 30 patents

Extractor valve assembly

Activator valve for providing a timed vacuum at an output port

Wash basins

Blow out toilet with low water volume usage

Sprayhead with built-in soap system for multi person washfountains

Vandal resistant and tamper proof pneumatic push button assembly fo...

Dual operated metering valve connected to both a hand operated push...

Rotating cap, screen and mounting means for protecting air metering...

Combined wall construction form and plumbing fixture mounting devic...

Vandal-resistant security view port

Tamper-proof lavatory and toilet unit

Plenum/vacuum chamber with duct connection for installation in cabi...

Vandal-resistant and tamper-proof plenum or vacuum chamber security...

Security mirror replaceable from pipe chase

Fabricated floor drain with large stepped flange for elastomeric tr...

Wall sleeve and installation jig for multiple adjacent fixture moun...

Fabricated floor drain with combination anchoring and seepage contr...

Patents Applicationslast 30 patents

EXTRACTOR VALVE ASSEMBLY