US3260555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-skid brake system
Assignee: Whitnash PLC
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Filing: 1963-04-26
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Granted: 1966-07-12
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Expires: 1983-04-26
Abstract
No abstract record available.
Inventors
- 👤 Mervyn B Packer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:37
CPC Classifications
B; B64; B64C; B64C25/00; B64C25/32; B64C25/42; B60; B60T; B60T8/00; B60T8/17; B60T8/1701; B60T8/1703; B60T8/176; B60T8/1761; B60T8/17613; B60T8/32; B60T8/321; B60T8/3235
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A FLUID PRESSURE OPERATED BRAKING SYSTEM FOR VEHICLES WHEREIN AN ELECTRICAL SYSTEM IS PROVIDED INCLUDING ELECTRICAL MEANS FOR SENSING THE INDIVIDUAL WHEEL SPEEDS, AN ELECTRICAL SIGNAL OBTAINED AS A RESULT OF ANY VARIATION OF THE SIGNAL IN RELATION TO PREDETERMINED CHARACTERISTIC BEING UTILIZED TO PERMIT AUTOMATICALLY THE OPERATION OF VALVE MEANS FOR CONTROLLING THE BRAKING FORCE ANY WHEEL OR NUMBER OF WHEELS REVOLVING SLOWER THAN A DESIRED SPEED SUCH THAT THE BRAKING FORCE CAN BE RELEASED WHEREIN THE ELECTRICAL SYSTEM COMPRISES A SIGNAL CIRCUIT INCLUDING ELECTRICAL SIGNAL PRODUCING MEANS ASSOCIATED WITH EACH WHEEL OF THE VEHICLE THE OUTPUTS FROM THE SIGNAL PRODUCING MEANS BEING FED TO A SENSING CIRCUIT IN WHICH ONE OF THE OUTPUTS FROM ALL THE SIGNAL PRODUCING MEANS IS FED TO A FIRST COMMON LINE, THE OTHER OUTPUTS THEREOF EACH BEING FED THROUGH A RESISTANCE SENSITIVE TO CHANGES IN THE SIGNAL CIRCUIT FOR DEVELOPING A SIGNAL OUTPUT TO A SECOND COMMON LINE, A
Claim 2
Dependent Claim
156 words
A FLUID PRESSURE OPERATED BRAKING SYSTEM FOR VEHICLES WHEREIN AN ELECTRICAL SYSTEM IS PROVIDED INCLUDING ELECTRICAL MEANS FOR SENSING THE INDIVIDUAL WHEEL SPEEDS, AN ELECTRICAL SIGNAL OBTAINED AS A RESULT OF ANY VARIATION OF THE SIGNAL IN RELATION TO PREDETERMINED CHARACTERISTIC BEING UTILIZED TO PERMIT AUTOMATICALLY THE OPERATION OF VALVE MEANS FOR CONTROLLING THE BRAKING FORCE ANY WHEEL OR NUMBER OF WHEELS REVOLVING SLOWER THAN A DESIRED SPEED SUCH THAT THE BRAKING FORCE CAN BE RELEASED WHEREIN THE ELECTRICAL SYSTEM COMPRISES A SIGNAL CIRCUIT INCLUDING ELECTRICAL SIGNAL PRODUCING MEANS ASSOCIATED WITH EACH WHEEL OF THE VEHICLE THE OUTPUTS FROM THE SIGNAL PRODUCING MEANS BEING FED TO A SENSING CIRCUIT IN WHICH ONE OF THE OUTPUTS FROM ALL THE SIGNAL PRODUCING MEANS IS FED TO A FIRST COMMON LINE, THE OTHER OUTPUTS THEREOF EACH BEING FED THROUGH A RESISTANCE SENSITIVE TO CHANGES IN THE SIGNAL CIRCUIT FOR DEVELOPING A SIGNAL OUTPUT TO A SECOND COMMON LINE, A
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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |