US4156448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jalousie door
Assignee: Crawford Door AB
•
Filing: 1977-08-22
•
Granted: 1979-05-29
•
Expires: 1997-08-22
Abstract
Abstract A jalousie door as described, having sections turnable about horizontal axes, the door being formed by a plurality of upper and lower juxtapositioned sections, each provided with an upper edge portion of a stepwise increasing height extending from the outside to the inside of the door, the side of the step facing outwardly forming a chute shaped cavity which is open outwardly and extending along the respected sections, the upper wall forming the cavity being horizontal when in a closed position.
Inventors
- 👤 Fred B. Bengtsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:18
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/48; E06B3/485
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
78 words
A jalousie door having sections turnable about horizontal axes, comprising a plurality of upper and lower juxtapositioned sections, each provided with an upper edge portion of a stepwise increasing height extending from the outside to the inside of the door, the side of the step facing outwardly forming a chuteshaped cavity which is open outwardly and extending along said sections respectively, the upper wall forming said cavity being substantially horizontal when in a closed position of the door.
Claim 2
Dependent Claim
78 words
A jalousie door having sections turnable about horizontal axes, comprising a plurality of upper and lower juxtapositioned sections, each provided with an upper edge portion of a stepwise increasing height extending from the outside to the inside of the door, the side of the step facing outwardly forming a chuteshaped cavity which is open outwardly and extending along said sections respectively, the upper wall forming said cavity being substantially horizontal when in a closed position of the door.
Claim 3
Dependent Claim
18 words
A door according to claim 1, wherein said upper wall forming said cavity terminates in a downward direction.
Claim 4
Dependent Claim
17 words
A door according to claim 1 wherein the lower wall forming said cavity extends downwardly and outwardly.
Claim 5
Dependent Claim
45 words
A door according to claim 1 wherein the lower edge portion of each section has a stepwise decreasing height which is complementary to the upper edge of a corresponding lower section and forms a chuteshaped cavity which is open toward the inside of the door.
Claim 6
Dependent Claim
19 words
A door according to claim 4 wherein said sections form a sealing ledge between the upper and lower sections.
Claim 7
Dependent Claim
48 words
A door according to claim 1, wherein the sections comprise inner and outer sheet plate shells forming the surfaces of the door and enclosing a filling of heat insulating material, the edge surfaces of the sheet plate shells of the respective sections being bridged by said insulating material.
Claim 8
Dependent Claim
26 words
A door according to claim 6, wherein the edge surfaces of said sheet plate terminate in flanges bent inwardly and embedded in said heat insulating material.
References Cited (Backward Citations)
CA732799A
Cited
US2494001A
Cited
US2880796A
Cited
US3941180A
Cited
US3967671A
Cited
US3980123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-28 | 1982-11-27 | 1983-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-28 | 1986-11-27 | 1987-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-28 | 1990-11-27 | 1991-05-29 | $7700.00 | Window Closed / Lapsed |