US4363378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ladder securing devices and ladder assembly
Assignee: Individual
•
Filing: 1980-11-26
•
Granted: 1982-12-14
•
Expires: 2000-11-26
Abstract
Abstract A ladder securing device which comprises two connectors for attachment to the runners of a ladder. One of the connectors includes a first rotatable element on which is mounted a second rotatable element. The elements are rotatable about axes which are at right angles to one another. A curved metal band is attached to one of said elements and the other connector includes an arrangement such as a locking pin for releasably securing the metal band to it. The arrangement of the first connector is such that the band can pivot about the two axes.
Inventors
- 👤 Richard E. Williams
- 👤 Kenneth J. Budden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:37
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/48
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
102 words
A ladder securing device comprising a substantially rigid fastening element, a first connector for attachment to a ladder, said first connector comprising a first element for connection to the ladder, a second element connected to said first element and selectively rotatable with respect to the first element about a first axis, and a third element for rotatably securing said fastening element to said second element, capable of allowing rotation of said fastening element about a second axis perpendicular to said first axis, a second connector for attachment to a ladder, and means for releasably attaching said fastening element to said second connector.
Claim 2
Dependent Claim
102 words
A ladder securing device comprising a substantially rigid fastening element, a first connector for attachment to a ladder, said first connector comprising a first element for connection to the ladder, a second element connected to said first element and selectively rotatable with respect to the first element about a first axis, and a third element for rotatably securing said fastening element to said second element, capable of allowing rotation of said fastening element about a second axis perpendicular to said first axis, a second connector for attachment to a ladder, and means for releasably attaching said fastening element to said second connector.
Claim 3
Dependent Claim
17 words
A device according to claim 1, in which said fastening element is constituted by a metal band.
Claim 4
Dependent Claim
15 words
A device according to claim 2, in which said metal band is semi-circular in form.
Claim 5
Dependent Claim
33 words
A device according to claim 2 or 3, in which said band has an aperture at the end thereof which connects to the second connector, said aperture serving to receive a connecting pin.
Claim 6
Dependent Claim
53 words
A device according to claim 1, 2 or 3, in which each connector comprises a bracket for embracing one of the runners of a ladder, and means adapted to pass through the bracket and the runner to secure the bracket to the runner, the bracket of said first connector constituting said first element.
Claim 7
Dependent Claim
136 words
In combination a ladder comprising a pair of runners and a plurality of rungs joining the runners, and a device for securing the ladder against slipping when in use, the device comprising a substantially rigid fastening element, a first connector attached to one of the runners of the ladder, said first connector comprising a first element connected to said one runner, a second element connected to said first element and selectively rotatable with respect to the first element about a first axis, and a third element for rotatably securing said fastening element to said second element, capable of allowing rotation of said fastening element about a second axis perpendicular to said first axis, a second connector attached to the other runner of the ladder, and means for releasably attaching said fastening element to said second connector.
Claim 8
Dependent Claim
136 words
In combination a ladder comprising a pair of runners and a plurality of rungs joining the runners, and a device for securing the ladder against slipping when in use, the device comprising a substantially rigid fastening element, a first connector attached to one of the runners of the ladder, said first connector comprising a first element connected to said one runner, a second element connected to said first element and selectively rotatable with respect to the first element about a first axis, and a third element for rotatably securing said fastening element to said second element, capable of allowing rotation of said fastening element about a second axis perpendicular to said first axis, a second connector attached to the other runner of the ladder, and means for releasably attaching said fastening element to said second connector.
Claim 9
Dependent Claim
126 words
A ladder securing device comprising a first connector including a structure for mounting the first connector on one of the runners of the ladder, a first element mounted on said structure for rotation about a first axis with respect to said structure, a second element mounted on said first element for rotation about a second axis with respect to said first element, said second axis intersecting said first axis at right angles, a substantially rigid curved fastening element mounted on said second element, a second connector including a structure for mounting the second connector on the other runner of the ladder, and means for releasably securing to said second connector the end of said curved element which is remote from its connection to said second element.
Claim 10
Dependent Claim
126 words
A ladder securing device comprising a first connector including a structure for mounting the first connector on one of the runners of the ladder, a first element mounted on said structure for rotation about a first axis with respect to said structure, a second element mounted on said first element for rotation about a second axis with respect to said first element, said second axis intersecting said first axis at right angles, a substantially rigid curved fastening element mounted on said second element, a second connector including a structure for mounting the second connector on the other runner of the ladder, and means for releasably securing to said second connector the end of said curved element which is remote from its connection to said second element.
Claim 11
Dependent Claim
151 words
In combination a ladder comprising two runners and a plurality of rungs connecting the runners, and a device for securing the ladder against slipping during use, the securing device comprising a first connector including a structure mounting the connector on one of the runners of the ladder, a first element mounted on said structure for rotation about a first axis with respect to said structure, a second element mounted on said first element for rotation about a second axis with respect to said first element, said second axis intersecting said first axis at right angles, a curved substantially rigid fastening element mounted on said second element, a second connector including a structure mounting the second connector on the other runner of the ladder, and means for releasably securing to said second connector the end of said curved substantially rigid fastening element which is remote from its connection to said second element.
Claim 12
Dependent Claim
151 words
In combination a ladder comprising two runners and a plurality of rungs connecting the runners, and a device for securing the ladder against slipping during use, the securing device comprising a first connector including a structure mounting the connector on one of the runners of the ladder, a first element mounted on said structure for rotation about a first axis with respect to said structure, a second element mounted on said first element for rotation about a second axis with respect to said first element, said second axis intersecting said first axis at right angles, a curved substantially rigid fastening element mounted on said second element, a second connector including a structure mounting the second connector on the other runner of the ladder, and means for releasably securing to said second connector the end of said curved substantially rigid fastening element which is remote from its connection to said second element.
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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) | 1985-12-13 | 1986-06-14 | 1986-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-13 | 1990-06-14 | 1990-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-13 | 1994-06-14 | 1994-12-14 | $7700.00 | Window Closed / Lapsed |