US3814213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Energy storage device
Assignee: Ferag AG
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Filing: 1972-05-22
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Granted: 1974-06-04
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Expires: 1992-05-22
Abstract
Abstract An energy storage device incorporating an energy storage element acting upon a power take-off element. The energy storage element is spanned between two movable supports which form the terminal elements of a transmission wherein the transmission ratio differs from 1:1 in at least one power transmission path section thereof.
Inventors
- 👤 V Balass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:02
CPC Classifications
F; F03; F03G; F03G1/00; F03G1/02; F03G1/026
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
208 words
An energy storage device comprising a power take-off element, an energy storage element acting upon said power take-off element, a pair of movable supports for spanning said energy storage element therebetween, said pair of movable supports forming terminal elements of a power transmission in which the transmission ratio at least at one transmission path section thereof differs from 1:1, means mounting said pair of movable supports to revolve about a common axis of rotation, means for cOnnecting said pair of movable supports with one another for rotational movement, said energy storage element comprising a torsion spring having respective ends coaxially arranged with respect to said axis of rotation and supported at said pair of movable supports, each of said movable supports comprising a rotatable cable drum, said connecting means comprising a cable which can be wound-up and wound-off said cable drums for interconnecting said cable drums with one another, at least one roller for deflecting the cable from one cable drum to the other cable drum, and wherein one cable drum possesses at the marginal region of its winding surface a clearly smaller winding radius than the other cable drum and that its winding surface at its end face possesses a crankpin-like projection past which extends the cable.
Claim 2
Dependent Claim
208 words
An energy storage device comprising a power take-off element, an energy storage element acting upon said power take-off element, a pair of movable supports for spanning said energy storage element therebetween, said pair of movable supports forming terminal elements of a power transmission in which the transmission ratio at least at one transmission path section thereof differs from 1:1, means mounting said pair of movable supports to revolve about a common axis of rotation, means for cOnnecting said pair of movable supports with one another for rotational movement, said energy storage element comprising a torsion spring having respective ends coaxially arranged with respect to said axis of rotation and supported at said pair of movable supports, each of said movable supports comprising a rotatable cable drum, said connecting means comprising a cable which can be wound-up and wound-off said cable drums for interconnecting said cable drums with one another, at least one roller for deflecting the cable from one cable drum to the other cable drum, and wherein one cable drum possesses at the marginal region of its winding surface a clearly smaller winding radius than the other cable drum and that its winding surface at its end face possesses a crankpin-like projection past which extends the cable.
Claim 3
Dependent Claim
18 words
The energy storage device as defined in claim 1, wherein same constitutes a closing mechanism for an object.
Claim 4
Dependent Claim
23 words
The energy storage device as defined in claim 2, wherein the closing mechanism is used in conjunction with an object defining a door.
Claim 5
Dependent Claim
25 words
The energy storage device as defined in claim 1, including means for varying the sense of movement of the terminal elements relative to one another.
Claim 6
Dependent Claim
25 words
The energy storage device as defined in claim 1, including means for changing the sense of movement of the terminal elements relative to one another.
Claim 7
Dependent Claim
18 words
The energy storage device as defined in claim 1, wherein said power transmission possesses a constant transmission ratio.
Claim 8
Dependent Claim
25 words
The energy storage device as defined in claim 1, wherein the transmission possesses a variable transmission ratio at least at one transmission path section thereof.
Claim 9
Dependent Claim
25 words
The energy storage device as defined in claim 7, wherein the transmission ratio is variable in the opposite sense starting from a ratio of 1:1.
Claim 10
Dependent Claim
27 words
The energy storage device as defined in claim 1, wherein the transmission possesses means providing a changeable transmission ratio at least at one transmission path section thereof.
Claim 11
Dependent Claim
25 words
The energy storage device as defined in claim 9, wherein the transmission ratio is changeable in the opposite sense starting from a ratio of 1:1.
Claim 12
Dependent Claim
18 words
The energy storage device as defined in claim 1, wherein the projection can be displaced in peripheral direction.
Claim 13
Dependent Claim
121 words
An energy storage device comprising an energy storage element, a power take-off element, said energy storage element acting upon said power take-off element, a pair of movable supports, said energy storage element being spanned between said pair of movable supports, said pair of movable supports forming terminal elements of a power transmission at which the transmission ratio at least at one transmission path section thereof differs from 1:1, means for connecting said pair of movable supports for movement with one another, said energy storage element cooperating with said pair of movable supports to produce an effective torque acting upon the power take-off element, which effective torque in dependency upon the position of said pair of movable supports either decreases or increases.
Claim 14
Dependent Claim
121 words
An energy storage device comprising an energy storage element, a power take-off element, said energy storage element acting upon said power take-off element, a pair of movable supports, said energy storage element being spanned between said pair of movable supports, said pair of movable supports forming terminal elements of a power transmission at which the transmission ratio at least at one transmission path section thereof differs from 1:1, means for connecting said pair of movable supports for movement with one another, said energy storage element cooperating with said pair of movable supports to produce an effective torque acting upon the power take-off element, which effective torque in dependency upon the position of said pair of movable supports either decreases or increases.
Claim 15
Dependent Claim
18 words
The energy storage device as defined in claim 1, wherein the projection can be displaced in peripheral direction.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |