US3086540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water pressure bulb unit for unclogging drains
Assignee: Individual
•
Filing: 1962-04-19
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Granted: 1963-04-23
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Expires: 1982-04-19
Abstract
No abstract record available.
Inventors
- 👤 Benard C Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:50
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/032; B08B9/0321; B08B9/0322; E; E03; E03F; E03F9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
AN EXPANSIBLE RESILIENT BULB UNIT COMPRISING AN ENVELOPE OF FLEXIBLE, ELASTIC FLUID IMPERMEABLE MATERIAL, MEANS COMPRISING A HOLLOW THIMBLE BONDED IN SEALING RELATION TO THE ENVELOPE AND EXTENDING THERETHROUGH TO PROVIDE FOR SUPPLY AND EXIT OF FLUID TO THE INTERIOR OF THE ENVELOPE, A SECOND HOLLOW THIMBLE EXTENDING THROUGH THE ENVELOPE IN SPACED RELATION TO THE FIRST MENTIONED THIMBLE, AND A CYLINDRICAL HELICALLY WOUND SPRING DISPOSED BETWEEN SAID THIMBLES AND SECURED TO EACH IN POSITION TO COMPLETE A NON-FLUID TIGHT TUBE THEREBETWEEN WHEREBY TO PHYSICALLY PROVIDE A DEGREE OF PHYSICAL SHAPE STABILITY OF THE UNIT GREATER THAN THAT PROVIDED BY THE FLEXIBLE ELASTIC MATERIAL THEREOF.
Claim 2
Dependent Claim
105 words
AN EXPANSIBLE RESILIENT BULB UNIT COMPRISING AN ENVELOPE OF FLEXIBLE, ELASTIC FLUID IMPERMEABLE MATERIAL, MEANS COMPRISING A HOLLOW THIMBLE BONDED IN SEALING RELATION TO THE ENVELOPE AND EXTENDING THERETHROUGH TO PROVIDE FOR SUPPLY AND EXIT OF FLUID TO THE INTERIOR OF THE ENVELOPE, A SECOND HOLLOW THIMBLE EXTENDING THROUGH THE ENVELOPE IN SPACED RELATION TO THE FIRST MENTIONED THIMBLE, AND A CYLINDRICAL HELICALLY WOUND SPRING DISPOSED BETWEEN SAID THIMBLES AND SECURED TO EACH IN POSITION TO COMPLETE A NON-FLUID TIGHT TUBE THEREBETWEEN WHEREBY TO PHYSICALLY PROVIDE A DEGREE OF PHYSICAL SHAPE STABILITY OF THE UNIT GREATER THAN THAT PROVIDED BY THE FLEXIBLE ELASTIC MATERIAL THEREOF.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |