US3329244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-acting disc-type brake
Assignee: Individual
•
Filing: 1966-03-28
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Granted: 1967-07-04
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Expires: 1986-03-28
Abstract
No abstract record available.
Inventors
- 👤 Nielsen Adolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:01
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/24; F16D55/26; F16D55/28; F16D55/32; F16D2055/0004; F16D2055/0058
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A DOUBLE-ACTING, DISC-TYPE WHEEL BRAKING COMPRISING: A DISC-SHAPED BRAKING MEMBER SPACED FROM AND AXIALLY MOUNTED TO SAID WHEEL FOR ROTATION THEREWITH, A PAIR OF DISC-SHAPED BRAKING SURFACES NON-ROTATABLY AND AXIALLY MOUNTED ON OPPOSITE SIDES OF SAID BRAKING MEMBER, MEANS FOR SELECTIVELY ENGAGING THE OPPOSITE SIDES OF SAID BRAKING MEMBER WITH SAID BRAKING SURFACES TO THEREBY DECREASE RELATIVE ROTATION THEREOF AND BRAKE SAID WHEEL, SAID MEANS COMPRISING A FIXED PISTON DISPOSED WITH THE AXIS THEREOF PARALLEL WITH THE AXIS OF SAID WHEEL, A CYLINDER HAVING AN AXIS PARALLEL TO THE AXIS OF SAID WHEEL ACCOMMODATING SAID FIXED PISTON THEREIN AN DHAVING A HEAD PORTION SECURED TO ONE OF SAID BRAKING SURFACES, A FLOATING PISTON IN SAID CYLINDER AXIALLY DISPOSED BETWEEN THE HEAD PORTION OF SAID CYLINDER AND SAID FIXED PISTON, MEANS FOR INTRODUCING FLUID PRESSURE INTO SAID CYLINDER BETWEEN SAID FIXED PISTON AND SAID FLOATING PISTON, AND MEANS FOR INTRODUCING FLUID PRESSURE INTO SAID CYLINDER BETWEEN THE HEAD PORTION THEREOF AND SAID FLOATING PISTON.
Claim 2
Dependent Claim
163 words
A DOUBLE-ACTING, DISC-TYPE WHEEL BRAKING COMPRISING: A DISC-SHAPED BRAKING MEMBER SPACED FROM AND AXIALLY MOUNTED TO SAID WHEEL FOR ROTATION THEREWITH, A PAIR OF DISC-SHAPED BRAKING SURFACES NON-ROTATABLY AND AXIALLY MOUNTED ON OPPOSITE SIDES OF SAID BRAKING MEMBER, MEANS FOR SELECTIVELY ENGAGING THE OPPOSITE SIDES OF SAID BRAKING MEMBER WITH SAID BRAKING SURFACES TO THEREBY DECREASE RELATIVE ROTATION THEREOF AND BRAKE SAID WHEEL, SAID MEANS COMPRISING A FIXED PISTON DISPOSED WITH THE AXIS THEREOF PARALLEL WITH THE AXIS OF SAID WHEEL, A CYLINDER HAVING AN AXIS PARALLEL TO THE AXIS OF SAID WHEEL ACCOMMODATING SAID FIXED PISTON THEREIN AN DHAVING A HEAD PORTION SECURED TO ONE OF SAID BRAKING SURFACES, A FLOATING PISTON IN SAID CYLINDER AXIALLY DISPOSED BETWEEN THE HEAD PORTION OF SAID CYLINDER AND SAID FIXED PISTON, MEANS FOR INTRODUCING FLUID PRESSURE INTO SAID CYLINDER BETWEEN SAID FIXED PISTON AND SAID FLOATING PISTON, AND MEANS FOR INTRODUCING FLUID PRESSURE INTO SAID CYLINDER BETWEEN THE HEAD PORTION THEREOF AND SAID FLOATING PISTON.
References Cited (Backward Citations)
US3094193A
Cited
US3160238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |