US4697385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety door unit and rotation guide and support device for door
Assignee: Individual
•
Filing: 1984-06-21
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Granted: 1987-10-06
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Expires: 2004-06-21
Abstract
Abstract A door pivotable open in one direction is made unhingeable from an opposite side. The door is mounted in a door frame having stop molding rebates disposed on different sides of the door for the left and right sides of the frame, and no stop molding or rebate on the top. The door is hinged at the left or right side by means of a mating pivot pin and receptacle in the door and frame or vice versa. A mechanism is accessible at least on the outer face of the door when the door is closed, to disengage the hinge parts and release the door. The door can also include alternative hinges on opposite edges of the door, the door being openable when one set of hinges is disengaged.
Inventors
- 👤 Janine M. Zachariasen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:45
CPC Classifications
E; E05; E05D; E05D15/00; E05D15/48; E05D15/54; E05D15/50; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
236 words
A supporting and guidance device for a pivotally mounted door, comprising: a casing having no rebate at a top thereof and having left and right rebates along opposite sides of the casing, the left and right rebates defining stops on opposite sides of the door, the rebates having a reversed profile from one another; hinge means pivotally mounting the door at one side of the casing, including a first connecting element fixed to the casing and a second connecting element fixed to the door, the first and second connecting elements being rotatably connectable to one another to define a pivot along a longitudinal hinging of the door in the casing, thereby pivotally mounting the door to open in a first opening direction relative to the casing, whereupon a first edge of the door is moved away from one of said left and right rebates; and, control means accessible from an outer face of the door when the door is closed to said first opening direction, the control means being operable to disconnect the first and secon connecting elements from one another, whereby the pivot is released and the door is released from the casing along the hinge axis, whereby the door is made openable in a direction opposite said first opening direction, and whereupon a second edge of the door opposite said first edge is moved away from the other of said left and right rebates.
Claim 2
Dependent Claim
236 words
A supporting and guidance device for a pivotally mounted door, comprising: a casing having no rebate at a top thereof and having left and right rebates along opposite sides of the casing, the left and right rebates defining stops on opposite sides of the door, the rebates having a reversed profile from one another; hinge means pivotally mounting the door at one side of the casing, including a first connecting element fixed to the casing and a second connecting element fixed to the door, the first and second connecting elements being rotatably connectable to one another to define a pivot along a longitudinal hinging of the door in the casing, thereby pivotally mounting the door to open in a first opening direction relative to the casing, whereupon a first edge of the door is moved away from one of said left and right rebates; and, control means accessible from an outer face of the door when the door is closed to said first opening direction, the control means being operable to disconnect the first and secon connecting elements from one another, whereby the pivot is released and the door is released from the casing along the hinge axis, whereby the door is made openable in a direction opposite said first opening direction, and whereupon a second edge of the door opposite said first edge is moved away from the other of said left and right rebates.
Claim 3
Dependent Claim
56 words
The device of claim 1, wherein the control means includes a piece having a cut-out adapted to receive an operating member, said piece being connected to drive means engaging with said first and second connecting elements defining the pivot and the drive means being operable to disconnect the first and second connecting elements from one another.
Claim 4
Dependent Claim
95 words
The device of claim 1, further comprising a further device also having a first connecting element and a second connecting element, said device and said further device respectively equipping lower and upper parts of a door mounted on a casing having no high rebate but having side rebates, and wherein the control means includes an espagnolette having lower and upper rods movable by a vertical bar, the lower and upper rods of the espagnolette being operable respectively to release pivots from the device and the further device at upper and lower edges of the door.
Claim 5
Dependent Claim
30 words
The device of claim 1, wherein the control means includes a piece having a cut-out capable of receiving an operating member, the piece incorporating drive means engaging with the pivot.
Claim 6
Dependent Claim
32 words
The device of claim 1, wherein the control means includes a piece having a cut-out capable of receiving an operating member, the piece giving access to drive means engaging with the pivot.
References Cited (Backward Citations)
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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) | 1990-10-05 | 1991-04-06 | 1991-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-05 | 1995-04-06 | 1995-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-05 | 1999-04-06 | 1999-10-06 | $7700.00 | Window Closed / Lapsed |