US3200080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Defoamer bar for suction scrubber
Assignee: Hoover Co
•
Filing: 1960-04-19
•
Granted: 1965-08-10
•
Expires: 1980-04-19
Abstract
No abstract record available.
Inventors
- 👤 Frank A Martin
- 👤 Milo E Bixler
- 👤 Clair W Studer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:08
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/29; A47L11/30; A47L11/32; A47L11/325; A47L11/40; A47L11/408; A47L11/4083; B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A SOLID WATER ERODIBLE DEFOAMANT CAKE FOR USE IN AN AIR STREAM CARRYING A LIQUID HAVING A TENDACY TO FOAM COMPRISING, A LIQUID DEFOAMING AGENT, A SOLID EMULSIFIER FOR SAID DEFOAMING AGENT, A SOLID WATER SOLUBLE WAX-LIKE CARRIER AND A SOLID NON-SOLUBLE RETARDANT, SAID DEFOAMING AGENT AND SAID EMULSIFER BEING DISPERSED THROUGHOUT SAID CARRIER WITH THE LATTER IN CONTINUOUS PHASE AND THE FORMER IN DISCONTINUOUS PHASE, SAID DEFOAMING AGENT COMPRISING FROM 20 TO 40% BY WEIGHT OF SAID CAKE, SAID EMULSIFIER COMPRISING A POLYETHYLENE GLYCOL DISTEARATE AND CONSTITUTING FROM 10 TO 65% BY WEIGHT OF SAID CAKE, SAID CARRIER COMPRISING A POLYETHYLENE GLYCOL AND CONSTITUTING FROM 5 TO 70% OF SAID CAKE AND SAID RETARDING AGENT COMPRISING A NON-SOLUBLE POLYETHYLENE WAS AND CONSTITUTING FROM 0 TO 20% BY WEIGHT OF SAID CAKE IN WHICH SAID DEFOAMANT IS A LIQUID SILICONE, IN WHICH THE MOLECULAR WEIGHT OF THE EMULSIFIER IS 1540, AND IN WHICH THE AVERAGE MOLECULAR WEIGHT OF THE CARRIER IS 20,000.
Claim 2
Dependent Claim
162 words
A SOLID WATER ERODIBLE DEFOAMANT CAKE FOR USE IN AN AIR STREAM CARRYING A LIQUID HAVING A TENDACY TO FOAM COMPRISING, A LIQUID DEFOAMING AGENT, A SOLID EMULSIFIER FOR SAID DEFOAMING AGENT, A SOLID WATER SOLUBLE WAX-LIKE CARRIER AND A SOLID NON-SOLUBLE RETARDANT, SAID DEFOAMING AGENT AND SAID EMULSIFER BEING DISPERSED THROUGHOUT SAID CARRIER WITH THE LATTER IN CONTINUOUS PHASE AND THE FORMER IN DISCONTINUOUS PHASE, SAID DEFOAMING AGENT COMPRISING FROM 20 TO 40% BY WEIGHT OF SAID CAKE, SAID EMULSIFIER COMPRISING A POLYETHYLENE GLYCOL DISTEARATE AND CONSTITUTING FROM 10 TO 65% BY WEIGHT OF SAID CAKE, SAID CARRIER COMPRISING A POLYETHYLENE GLYCOL AND CONSTITUTING FROM 5 TO 70% OF SAID CAKE AND SAID RETARDING AGENT COMPRISING A NON-SOLUBLE POLYETHYLENE WAS AND CONSTITUTING FROM 0 TO 20% BY WEIGHT OF SAID CAKE IN WHICH SAID DEFOAMANT IS A LIQUID SILICONE, IN WHICH THE MOLECULAR WEIGHT OF THE EMULSIFIER IS 1540, AND IN WHICH THE AVERAGE MOLECULAR WEIGHT OF THE CARRIER IS 20,000.
References Cited (Backward Citations)
US2647125A
Cited
US2748180A
Cited
US2824059A
Cited
US2797198A
Cited
US2820699A
Cited
US2843551A
Cited
US2894913A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |