US3578352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle with frame adapted to be raised and lowered
Assignee: Fried Krupp AG
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Filing: 1969-02-14
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Granted: 1971-05-11
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Expires: 1989-02-14
Abstract
Abstract A vehicle with a plurality of axles or axle groups supported by angle levers in which said angle levers are adapted to be interconnected by coupling rod means which have associated therewith hydraulically operably cylinder piston means operable to act upon said angle lever means so as selectively to raise and lower the vehicle body relative to the wheels supported by the axles or axle groups.
Inventors
- 👤 Franz Heine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:20
CPC Classifications
B; B60; B60G; B60G17/00; B60G17/02; B60G17/033; B60G21/00; B60G21/02; B60G21/06; B60G21/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
232 words
In combination with a vehicle having a vehicle body and at least two axles with wheels for supporting said vehicle body, which includes: a plurality of angle lever means pivotally supported by said vehicle body, coupling rod means comprising two sections one behind the other with two end portions thereof displaceably arranged one within the other, one arm of each of said angle lever means respectively pivotally supporting one of said axles and the other arm of each of said angle lever means being respectively pivotally connected to said sections, hydraulically operable means operatively connected to said coupling rod means for actuating the same to pivot said plurality of angle lever means and the wheel axles supported thereby relative to said vehicle body to thereby raise and lower the latter relative to said wheels, said hydraulically operable means comprising two hydraulically operable cylinder piston systems respectively operatively connected to those end portions of said two sections which are remote from each other, said two hydraulically operable cylinder piston systems being pivotally supported by said vehicle body, said arrangement also including valve means controlling the supply of actuating fluid to and from each of said cylinder piston systems, and locking means associated with those end portions of said sections which are displaceably arranged one within the other for interlocking said last mentioned end portions in different relative positions with regard to each other.
Claim 2
Dependent Claim
232 words
In combination with a vehicle having a vehicle body and at least two axles with wheels for supporting said vehicle body, which includes: a plurality of angle lever means pivotally supported by said vehicle body, coupling rod means comprising two sections one behind the other with two end portions thereof displaceably arranged one within the other, one arm of each of said angle lever means respectively pivotally supporting one of said axles and the other arm of each of said angle lever means being respectively pivotally connected to said sections, hydraulically operable means operatively connected to said coupling rod means for actuating the same to pivot said plurality of angle lever means and the wheel axles supported thereby relative to said vehicle body to thereby raise and lower the latter relative to said wheels, said hydraulically operable means comprising two hydraulically operable cylinder piston systems respectively operatively connected to those end portions of said two sections which are remote from each other, said two hydraulically operable cylinder piston systems being pivotally supported by said vehicle body, said arrangement also including valve means controlling the supply of actuating fluid to and from each of said cylinder piston systems, and locking means associated with those end portions of said sections which are displaceably arranged one within the other for interlocking said last mentioned end portions in different relative positions with regard to each other.
Claim 3
Dependent Claim
65 words
An arrangement according to claim 1, in which each of said cylinder piston systems is double-acting, and which includes separate conduit means for respectively interlocking the respective corresponding portions of said two cylinder piston systems, said valve means being connected to said separate conduit means and being able alternately to connect said separate conduit means to a source of pressure fluid and to an exhaust.
Claim 4
Dependent Claim
71 words
An arrangement according to claim 1, in which said two hydraulically operable cylinder piston systems are single acting, and which includes two independent conduits respectively connecting the fluid operable portions of said two single acting cylinder piston systems to said valve means, said valve means being operable alternately to connect one of said two conduits with a source of pressure fluid and the other conduit with an exhaust, and vice versa.
Claim 5
Dependent Claim
21 words
An arrangement according to claim 1, which includes means for selectively interrupting communication between said two hydraulically operable cylinder piston systems.
Claim 6
Dependent Claim
16 words
An arrangement according to claim 2, which includes throttle means interposed in said separate conduit means.
Claim 7
Dependent Claim
170 words
In combination with a vehicle having a vehicle body and at least two axles with wheels for supporting said vehicle body, which includes: a plurality of angle lever means pivotally supported by said vehicle body, coupling rod means comprising two sections one behind the other with two end portions thereof displaceably arranged respectively pivotally supporting one of said axles and the other arm of each of said angle lever means being respectively pivotally connected to said sections, said displaceably arranged end portions constituting hydraulically operable cylinder and piston means, multipath valves means operatively connected to said cylinder means, adjustable at random into positioning and relatively setting the hydraulically operable means, and said hydraulically operable means being displacable under fluid pressure in opposite directions with respect to each other such that due to pivoting of said angle lever means there is lifting of the vehicle body into a raised higher lever with respect to wheels supporting the same, and means establishing stable connection of said two sections of coupling rod means.
Claim 8
Dependent Claim
170 words
In combination with a vehicle having a vehicle body and at least two axles with wheels for supporting said vehicle body, which includes: a plurality of angle lever means pivotally supported by said vehicle body, coupling rod means comprising two sections one behind the other with two end portions thereof displaceably arranged respectively pivotally supporting one of said axles and the other arm of each of said angle lever means being respectively pivotally connected to said sections, said displaceably arranged end portions constituting hydraulically operable cylinder and piston means, multipath valves means operatively connected to said cylinder means, adjustable at random into positioning and relatively setting the hydraulically operable means, and said hydraulically operable means being displacable under fluid pressure in opposite directions with respect to each other such that due to pivoting of said angle lever means there is lifting of the vehicle body into a raised higher lever with respect to wheels supporting the same, and means establishing stable connection of said two sections of coupling rod means.
Claim 9
Dependent Claim
158 words
A combination further in accordance with claim 6, in which said hydraulically operable means are double-acting and opposite cylinder ends respectively being part of said hydraulically operable means, conduit means interconnecting said opposite cylinder ends with said multipath valve means which in one position interconnects both opposite cylinder ends with each other and with conduit means for outlet, a fluid pressure source connected to one cylinder end by said multipath valve means in another position while the remaining cylinder end is connected thereby to conduit means for outlet, in a further position of said multipath valve means there being connection of the first mentioned cylinder end to conduit means for outlet while the second mentioned cylinder end is connected to said multipressure source, and in a still further position of said multipath valve means there is blockage of both cylinder ends so that both sections of coupling rod means are rigidly connected with stability relative to each other.
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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |