US3135529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-bouncing vehicle
Assignee: Doosan Bobcat North America Inc
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Filing: 1960-12-29
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Granted: 1964-06-02
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Expires: 1980-12-29
Abstract
No abstract record available.
Inventors
- 👤 Marcus L Conrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:40
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/64; E02F3/65; E02F3/653; B; B60; B60G; B60G17/00; B60G17/02; B60G17/033; B62; B62D; B62D12/00; B62D53/00; B62D53/02; E02F3/6454; E02F3/651; E02F3/652; Y; Y10; Y10S; Y10S60/00; Y10S60/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
IN AN ARTICULATED VEHICLE HAVING A TWO-WHEELED TRACTOR PORTION INTERCONNECTED BY A COMBINED STEERING AND DRAFT COUPLING TO A TRAILER PORTION INCLUDING A FRAME PORTION AND A LOAD CARRYING BODY PIVOTALLY CONNECTED NEAR THE REAR OF THE FRAME PORTION AND EXTENDING IN HORIZONTALLY DISPOSED RELATION RELATIVE TO THE PIVOT POINT TOWARD THE FRONT OF THE TRAILER PORTION, MEANS INCLUDING A VARIABLE CHAMBER LIQUID CONTAINING DEVICE FOR SUPPORFTING THE FRONT PORTION OF THE BODY ON THE FRAME PORTION, MEANS FOR ADMITTING LIQUID TO AND DISCHARGING IT FROM THE SAID VARIABLE CHAMBER DEVICE FOR RAISING AND LOWERING THE FRONT OF THE BODY, AN ACCUMULATOR, CONDUIT MEANS CONNECTING THE SAID ACCUMULATOR AND THE CHAMBER OF THE SAID VARIABLE CHAMBER DEVICE, AND A FLOW CONTROL DEVICE CONNECTED IN THE SAID CONDUIT PROVIDING FOR SUBSTANTIALLY UNRESTRICTED FLOW OF LIQUID FROM THE SAID CHAMBER TO THE SAID ACCUMULATOR BUT LIMITING THE RATE OF FLOW OF LIQUID FROM THE ACCUMULATOR TO THE SAID CHAMBER TO A LOWER RATE, WHEREBY TO ABSORB SHOCK FORCES TRANSMITTED BY THE SAID BODY TO THE SAID FRAME PORTION AND INHIBIT RHYTHMIC BOUNCING ACTION OF THE VEHICLE.
Claim 2
Dependent Claim
184 words
IN AN ARTICULATED VEHICLE HAVING A TWO-WHEELED TRACTOR PORTION INTERCONNECTED BY A COMBINED STEERING AND DRAFT COUPLING TO A TRAILER PORTION INCLUDING A FRAME PORTION AND A LOAD CARRYING BODY PIVOTALLY CONNECTED NEAR THE REAR OF THE FRAME PORTION AND EXTENDING IN HORIZONTALLY DISPOSED RELATION RELATIVE TO THE PIVOT POINT TOWARD THE FRONT OF THE TRAILER PORTION, MEANS INCLUDING A VARIABLE CHAMBER LIQUID CONTAINING DEVICE FOR SUPPORFTING THE FRONT PORTION OF THE BODY ON THE FRAME PORTION, MEANS FOR ADMITTING LIQUID TO AND DISCHARGING IT FROM THE SAID VARIABLE CHAMBER DEVICE FOR RAISING AND LOWERING THE FRONT OF THE BODY, AN ACCUMULATOR, CONDUIT MEANS CONNECTING THE SAID ACCUMULATOR AND THE CHAMBER OF THE SAID VARIABLE CHAMBER DEVICE, AND A FLOW CONTROL DEVICE CONNECTED IN THE SAID CONDUIT PROVIDING FOR SUBSTANTIALLY UNRESTRICTED FLOW OF LIQUID FROM THE SAID CHAMBER TO THE SAID ACCUMULATOR BUT LIMITING THE RATE OF FLOW OF LIQUID FROM THE ACCUMULATOR TO THE SAID CHAMBER TO A LOWER RATE, WHEREBY TO ABSORB SHOCK FORCES TRANSMITTED BY THE SAID BODY TO THE SAID FRAME PORTION AND INHIBIT RHYTHMIC BOUNCING ACTION OF THE VEHICLE.
References Cited (Backward Citations)
US2460725A
Cited
US2901051A
Cited
US2815223A
Cited
US2897613A
Cited
US2940533A
Cited
US2902288A
Cited
US2936039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |