Patent US3893260A successfully refreshed from Google Patents.
US3893260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control device for vehicle doors and other members
Assignee: Automobiles Citroen SA
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Filing: 1973-04-30
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Granted: 1975-07-08
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Expires: 1993-04-30
Abstract
Abstract A sliding automobile door is actuated by a rack and pinion driven by an electric motor through a worm and worm wheel. In the event of failure of the motor the worm and worm wheel can be disengaged by a control slide accessible both from the interior of the vehicle and from beneath the bonnet, hood or other cover of another compartment of the vehicle.
Inventors
- 👤 Jean G Cadiou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:07
CPC Classifications
B; B60; B60J; B60J5/00; B60J5/04; B60J5/06; E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/632; E05F15/635; G; G05; G05G; G05G11/00; E05Y; E05Y2201/00; E05Y2201/20; E05Y2201/214; E05Y2201/23; E05Y2201/244; E05Y2201/60; E05Y2201/622; E05Y2201/638; E05Y2201/676; E05Y2201/696; E05Y2201/704; E05Y2600/00; E05Y2600/10; E05Y2600/20; E05Y2600/30; E05Y2600/31; E05Y2900/00; E05Y2900/50; E05Y2900/53; E05Y2900/531; E05Y2900/536
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
248 words
In a device for controlling the operation of a movable member separating two spaces and disposed in part in a third space, said device comprising an electric motor, a first switch for selective activation of the electric motor from one of the two spaces, and a second switch for selective activation of the electric motor from the other of said two spaces, an actuating mechanism for the movable member, a non-reversible transmission coupling the electric motor and the actuating mechanism, said transmission including a worm, and a worm wheel rotatably mounted and coupled to the actuating mechanism and being so positioned that it is capable of engagement with the worm, the improvement comprising: means for disengaging the worm from the worm wheel, said means including a casing carrying the electric motor and the worm which is rotatably mounted in said casing and driven by said motor and said worm wheel also being located within the confines of said casing, said casing being so weighted and pivotally mounted that the worm is constantly urged away from the position of engagement with the worm wheel by the force of gravity, and a control member accessible both in the said one space and in said third space, said control member being slidably disposed in said casing and operable to pivot the casing and the worm rotatably mounted therein to urge the worm into engagement with the worm wheel against the force of gravity urging the worm away from the worm wheel.
Claim 2
Dependent Claim
248 words
In a device for controlling the operation of a movable member separating two spaces and disposed in part in a third space, said device comprising an electric motor, a first switch for selective activation of the electric motor from one of the two spaces, and a second switch for selective activation of the electric motor from the other of said two spaces, an actuating mechanism for the movable member, a non-reversible transmission coupling the electric motor and the actuating mechanism, said transmission including a worm, and a worm wheel rotatably mounted and coupled to the actuating mechanism and being so positioned that it is capable of engagement with the worm, the improvement comprising: means for disengaging the worm from the worm wheel, said means including a casing carrying the electric motor and the worm which is rotatably mounted in said casing and driven by said motor and said worm wheel also being located within the confines of said casing, said casing being so weighted and pivotally mounted that the worm is constantly urged away from the position of engagement with the worm wheel by the force of gravity, and a control member accessible both in the said one space and in said third space, said control member being slidably disposed in said casing and operable to pivot the casing and the worm rotatably mounted therein to urge the worm into engagement with the worm wheel against the force of gravity urging the worm away from the worm wheel.
Claim 3
Dependent Claim
64 words
A device according to claim 1, wherein said control member comprises a slide member slidable in the said casing and having a notch therein, a handle at one end of the slide member, said slide being supported on the worm wheel and movable relative thereto whereby in cooperation with the notch, the casing is permitted to pivot and thereby disengage Drive through the transmission.
Claim 4
Dependent Claim
70 words
A device according to claim 1, wherein said control member comprises a slide member slidable in the casing and having a notch therein, and said device further comprises a shaft mounting the worm wheel and a bush rotatably mounting the shaft, movement of the slide member along the member permitting the bush to engage in the notch and thus permit pivoting of the casing to enable disengagement of the transmission.
Claim 5
Dependent Claim
23 words
A device according to claim 2, wherein the slide member includes two parts, one being disposed on each side of the worm wheel.
Claim 6
Dependent Claim
29 words
A device according to claim 2, wherein the control member further comprises a rod and a handle mounted on the rod, said handle being located within the third space.
Claim 7
Dependent Claim
15 words
A device according to claim 5, wherein the rod can be detached from the slide.
Claim 8
Dependent Claim
60 words
A device according to claim 1, wherein one said space of the two spaces is the useful space enclosed by an automobile, the other said space of the two spaces is the ambient and the third space is that enclosed below the hood of the automobile, said space below the hood having therein a handle secured to the control member.
Claim 9
Dependent Claim
245 words
In a device for controlling the operation of a movable member separating two spaces and disposed in part in a third space, said device comprising: an electric motor, a first switch for selective activation of the electric motor from one of the two spaces, and a second switch for selective activation of the electric motor from the other of said two spaces, an actuating mechanism for the movable member, a non-reversible transmission coupling the electric motor and the actuating mechanism, said transmission including: a worm, and a worm wheel rotatably mounted and coupled to the actuating mechanism and being so positioned that it is capable of engagement with the worm, the improvement comprising: means for disengaging the worm from the worm wheel, said means including a casing carrying the electric motor and the worm which is rotatably mounted in said casing and driven by said motor and said worm wheel also being located within the confines of said casing, said casing being pivotally mounted, means biasing said casing for constantly urging the worm away from the position of engagement with the worm wheel, and a control member accessible both in the said one space and in said third space, said control member being slidably disposed in said casing and operable to pivot the casing and the worm rotatably mounted therein to urge the worm into engagement with the worm wheel against the means biasing said casing to urge the worm away from the worm wheel.
Claim 10
Dependent Claim
245 words
In a device for controlling the operation of a movable member separating two spaces and disposed in part in a third space, said device comprising: an electric motor, a first switch for selective activation of the electric motor from one of the two spaces, and a second switch for selective activation of the electric motor from the other of said two spaces, an actuating mechanism for the movable member, a non-reversible transmission coupling the electric motor and the actuating mechanism, said transmission including: a worm, and a worm wheel rotatably mounted and coupled to the actuating mechanism and being so positioned that it is capable of engagement with the worm, the improvement comprising: means for disengaging the worm from the worm wheel, said means including a casing carrying the electric motor and the worm which is rotatably mounted in said casing and driven by said motor and said worm wheel also being located within the confines of said casing, said casing being pivotally mounted, means biasing said casing for constantly urging the worm away from the position of engagement with the worm wheel, and a control member accessible both in the said one space and in said third space, said control member being slidably disposed in said casing and operable to pivot the casing and the worm rotatably mounted therein to urge the worm into engagement with the worm wheel against the means biasing said casing to urge the worm away from the worm wheel.
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) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |