US3256893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispenser for fluids
Assignee: Individual
•
Filing: 1963-08-12
•
Granted: 1966-06-21
•
Expires: 1983-08-12
Abstract
No abstract record available.
Inventors
- 👤 Hugh E Mceachran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:48
CPC Classifications
A; A46; A46B; A46B11/00; A46B11/001; A46B11/0017
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
249 words
AN IMPROVED FOUNTAIN TOOTHBRUSH COMPRISING A RIGID CONTAINER CONTAINING DENTIFRICE UNDER PRESSURE , AN AXIALLY SLIDABLE TUBE THROUGH AND IN FLUID-SEALING ENGAGEMENT WITH ONE WALL OF SAID CONTAINER, A CYLINDRICAL CASING SECURED WITHIN SAID CONTAINER COAXIAL THEREWITH AND SPACED RADIALLY FROM THE SLIDABLE TUBE WHEREBY A SUBSTANTIALLY ANNULAR RESERVOIR IS PROVIDED WHICH CONTAINS THE SUPPLY OF DENTIFRICE, MEANS ENTIRELY WITHIN THE CASING FOR RESTRAINING OTHER THAN AXIAL MOVEMENT OF THE SLIDING TUBE, AND AN NULAR PARTITION CLAMPED WITHIN SAID CASING, A SPRING DISPOSED BETWEEEN SAID ANNULAR PARTITION AND THE SLIDING TUBE, A SECOND SLIDING TUBE COAXIAL WITH AN IN ABUTTING RELATION WITH THE FIRST SLIDING TUBE, SAID SECOND TUBE POSITIONED SLIDABLY WITHIN THE ANNULAR PARTITION PART OF WHICH IS IN COMMUNICATION WITH DENTIFRICE IN THE RIGID CONTAINER BUT UNCONNECTED THEREWITH EXCEPT BY A PERIPHERAL PORT IN THE SECOND TUBE, A SPRING INTERPOSED BETWEEN THE CONTAINER AND THE END OF SAID SECOND TUBE MAINTAINING THE SECOND TUBE IN ABUTTING RELATION WITH THE FIRST MENTIONED TUBE AND THE PERIPHERAL PORT IN THE TUBE CLOSED BY THE PARTITION, IN COMBINATION WITH A TOOTHBRUSH HEAD LOCATEE EXTERNALLY FROM THE CONTAINER ON THE AXIALLY SLIDABLE TUBE AND FORMED WITH A PLURALITY OF PASSAGES WHICH ARE IN COMMUNICATION WITH THE INTERIOR OF THE TUBE WHEREBY FLUID FROM THE INTERIOR OF THE CONTAINER MAY BE DISPENSED WHEN INWARD MOVEMENT OF THE SLIDABLE TUBE AGAINST THE ACTION OF THE SPRINGS EXPOSES THE PART OF SAID SECOND TUBE TO COMMUNICATION WITH THE DENTRIFRICE CONTAINING PORTION OF THE CONTAINER.
Claim 2
Dependent Claim
249 words
AN IMPROVED FOUNTAIN TOOTHBRUSH COMPRISING A RIGID CONTAINER CONTAINING DENTIFRICE UNDER PRESSURE , AN AXIALLY SLIDABLE TUBE THROUGH AND IN FLUID-SEALING ENGAGEMENT WITH ONE WALL OF SAID CONTAINER, A CYLINDRICAL CASING SECURED WITHIN SAID CONTAINER COAXIAL THEREWITH AND SPACED RADIALLY FROM THE SLIDABLE TUBE WHEREBY A SUBSTANTIALLY ANNULAR RESERVOIR IS PROVIDED WHICH CONTAINS THE SUPPLY OF DENTIFRICE, MEANS ENTIRELY WITHIN THE CASING FOR RESTRAINING OTHER THAN AXIAL MOVEMENT OF THE SLIDING TUBE, AND AN NULAR PARTITION CLAMPED WITHIN SAID CASING, A SPRING DISPOSED BETWEEEN SAID ANNULAR PARTITION AND THE SLIDING TUBE, A SECOND SLIDING TUBE COAXIAL WITH AN IN ABUTTING RELATION WITH THE FIRST SLIDING TUBE, SAID SECOND TUBE POSITIONED SLIDABLY WITHIN THE ANNULAR PARTITION PART OF WHICH IS IN COMMUNICATION WITH DENTIFRICE IN THE RIGID CONTAINER BUT UNCONNECTED THEREWITH EXCEPT BY A PERIPHERAL PORT IN THE SECOND TUBE, A SPRING INTERPOSED BETWEEN THE CONTAINER AND THE END OF SAID SECOND TUBE MAINTAINING THE SECOND TUBE IN ABUTTING RELATION WITH THE FIRST MENTIONED TUBE AND THE PERIPHERAL PORT IN THE TUBE CLOSED BY THE PARTITION, IN COMBINATION WITH A TOOTHBRUSH HEAD LOCATEE EXTERNALLY FROM THE CONTAINER ON THE AXIALLY SLIDABLE TUBE AND FORMED WITH A PLURALITY OF PASSAGES WHICH ARE IN COMMUNICATION WITH THE INTERIOR OF THE TUBE WHEREBY FLUID FROM THE INTERIOR OF THE CONTAINER MAY BE DISPENSED WHEN INWARD MOVEMENT OF THE SLIDABLE TUBE AGAINST THE ACTION OF THE SPRINGS EXPOSES THE PART OF SAID SECOND TUBE TO COMMUNICATION WITH THE DENTRIFRICE CONTAINING PORTION OF THE CONTAINER.
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |