Plural component spray gun
Abstract
Abstract THE PRESENT INVENTION RELATES TO A PLURAL COMPONENT SPRAY GUN WHICH IS UTILIZED, FOR EXAMPLE, IN THE SPRAYING OF PLASTIC FOAMS. PRESSURIZED FLUID COMPONENTS FLOWTHROUGH THE SPRAY GUN WHERE THEY ARE MIXED TOGETHER AND DISCHARAGED THROUGH A SPRAY NOZZLE. THE SPRAY GUN BODY, THE CLUDES A SPRAY HEAD MOUNTED ON A SPRAY GUN BODY. THE SPRAY HEAD DEFINES A PLURALITY OF VALVE CHAMBERS WHICH ARE LOCATED ON LONGITUDINALLY EXTENDING AND PARALLEL MAJOR AXES. A VALVE ASSEMBLY IS POSITIONED IN EACH OF THE VALVE CHAMBERS AND EACH OF THE VALVE ASSEMBLIES INCLUDES A FLUID DISCHARGE OPENING. A NOZZLE ASSEMBLY, WHICH INCLUDES A MIXING PLATE IS REMOVABLY MOUNTED ON THE FRONT END OF THE SPRAY HEAD. THE MIXING PLATE IS CLOSELY ADJACENT THE DISCHARGE ENDS OF THE VALVE ASSEMBLIES. THE MIXING PLATE DEFINES A PASSAGEWAY NETWORK WHICH IS IN COMMUNICATION WITH EACH OF THE FLUID DISCHARGE OPENINGS. THE PLURAL COMPONENTS ARE FED THROUGH THE PASSAGEWAY NETWORK UPON THE OPERATION OF A TRIGGERING APPARATUS. A SECOND TRIGGERING APPARATUS IS CONNECTED TO ANOTHER OND OF THE VALVE ASSEMBLIES AND IS UTILIZED TO DIRECT SOLVENT INTO THE PASSAGEWAY NETWORK DURING THE CLEANING OF THE SPRAY GUN.
Inventors
- 👤 Thomas Oren Hoffman
- 👤 Erhard Kock
- 👤 John H Mang
- 👤 Earl F Staifer
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |