US3727348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety arrangement for powered vehicle windows, sun-roofs and the like
Assignee: Robert Bosch GmbH
•
Filing: 1972-04-10
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Granted: 1973-04-17
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Expires: 1992-04-10
Abstract
Abstract In a vehicle, a safety arrangement for powered windows, sunroofs, and the like. A squeezable fluid conduit at least in part bounds an opening. A window or the like is movable by a motor in a direction closing the opening. A pump is connected with the fluid conduit and establishes a flow of fluid therethrough. The pump produces a pressure change in the conduit when the conduit is squeezed. A pressure-responsive control arrangement controls operation of the motor as a function of pressure changes in the conduit resulting from squeezing of the conduit due to the presence of an object caught between the conduit and the window when the latter is moving in closing direction.
Inventors
- 👤 H Steinmann
- 👤 K Burger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:46
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/40; E05F15/42; E05F15/47; E05Y; E05Y2400/00; E05Y2400/10; E05Y2400/45; E05Y2400/452; E05Y2900/00; E05Y2900/50; E05Y2900/53; E05Y2900/55
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
131 words
In a vehicle, a safety arrangement for powered windows, sunroofs, and the like, comprising squeezable fluid conduit means at least in part bounding an opening; closure means movable to and from a position in which it closes said opening; pump means connected with said fluid conduit means for establishing a flow of fluid therethrough, said pump means producing a pressure change in said conduit means when said conduit means is squeezed; motor means for moving said closure means; and pressureresponsive motor control means for controlling the operation of said motor means as a function of pressure changes in said conduit means resulting from squeezing of the latter due to the presence of an object caught between said conduit means and said closure means when the latter is moving to said position.
Claim 2
Dependent Claim
131 words
In a vehicle, a safety arrangement for powered windows, sunroofs, and the like, comprising squeezable fluid conduit means at least in part bounding an opening; closure means movable to and from a position in which it closes said opening; pump means connected with said fluid conduit means for establishing a flow of fluid therethrough, said pump means producing a pressure change in said conduit means when said conduit means is squeezed; motor means for moving said closure means; and pressureresponsive motor control means for controlling the operation of said motor means as a function of pressure changes in said conduit means resulting from squeezing of the latter due to the presence of an object caught between said conduit means and said closure means when the latter is moving to said position.
Claim 3
Dependent Claim
40 words
The arrangement of claim 1, wherein said pump means has a pressure side and a suction side, and wherein said conduit means has a first end connected to said pressure side and a second end connected to said suction side.
Claim 4
Dependent Claim
40 words
The arrangement of claim 1, wherein said pump means has a pressure side and a suction side, and wherein said conduit means has a first end connected witH one of said sides and a second end communicating with the atmosphere.
Claim 5
Dependent Claim
15 words
The arrangement of claim 3, wherein said first end is connected with said pressure side.
Claim 6
Dependent Claim
16 words
The arrangement of claim 2; and further comprising pressure cushion means connected with said conduit means.
Claim 7
Dependent Claim
15 words
The arrangement of claim 1, wherein said fluid is stable with respect to environmental changes.
Claim 8
Dependent Claim
11 words
The arrangement of claim 1, wherein said fluid is chemically inert.
Claim 9
Dependent Claim
14 words
The arrangement of claim 1, wherein said fluid conduit means comprises a squeezable tube.
Claim 10
Dependent Claim
16 words
The arrangement of claim 1, wherein said fluid conduit means comprises conduit portions of colorless material.
Claim 11
Dependent Claim
10 words
The arrangement of claim 1; wherein said fluid is gaseous.
Claim 12
Dependent Claim
28 words
The arrangement of claim 1; and further comprising frame means bounding said opening, said squeezable fluid conduit means being at least in part mounted on said frame means.
Claim 13
Dependent Claim
15 words
The arrangement of claim 1; and further comprising check means provided in said conduit means.
Claim 14
Dependent Claim
19 words
The arrangement of claim 1, wherein said motor means for moving said closure means also drives said pump means.
Claim 15
Dependent Claim
28 words
The arrangement of claim 1, wherein said conduit means has a cross-section which is narrower in direction of movement of said closure means than transverse to said direction.
Claim 16
Dependent Claim
17 words
The arrangement of claim 1, wherein said control means comprises switch means connected with said motor means.
Claim 17
Dependent Claim
13 words
The arrangement of claim 15, wherein said switch means comprises pole-reversing switch means.
References Cited (Backward Citations)
US2221216A
Cited
GB735324A
Cited
US2911212A
Cited
US3276164A
Cited
US3260812A
Cited
US3662491A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |