Nozzle construction for a vacuum cleaner or the like
Abstract
Abstract THIS DISCLOSURE RELATES TO A NOZZLE CONSTRUCTION FOR A VACUUM CLEANING APPARATUS OR THE LIKE FOR APPLYING A SUCTION TO A SURFACE TO BE CLEANED THEREBY, THE NOZZLE CONSTRUCTION COMPRISING A SUPPORT MEANS HAVING OPENING MEANS THEREIN PROVIDED WITH AN OUTLET TO BE INTERCONNECTED TO A VACUUM PUMP MEANS AND AN INLET TO BE DISPOSED ADJACENT TO A SURFACE MEANS TO BE CLEANED. A FLEXIBLE WALL SURROUNDS THE INLET SO AS TO HAVE ONE SIDE THEREOF ENGAGED AGAINST THE SURFACE MEANS AROUND SAID INLET TO SUBSTANTIALLY SEAL THE INLET OF THE SUPPORT MEANS TO THE SURFACE MEANS. THE FLEXIBLE WALL IS SO CONSTRUCTED AND ARRANGED THAT A PRESSURE DIFFERENTIAL ACTING ACROSS THE SAME RESULTING FROM THE VACUUM PUMP MEANS DRAWING FLUID FROM THE SURFACE MEANS INTO THE INLET AND OUT THROUGH THE OUTLET OF THE OPENING MEANS CASES THE FLEXIBLE WALL TO BE URGED TOWARD THE SURFACE MEANS TO SUBSTANTIALLY SEAL AGAINST THE SURFACE MEANS AROUND THE INLET AND SUBSTANTIALLY CONFORM TO THE CONTOUR OF THE SURFACE MEANS OUTBOARD OF THE INLET.
Inventors
- 👤 Robert R Candor
- 👤 James T Candor
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 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 |