Patent US4579197A successfully refreshed from Google Patents.
US4579197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ladder shield
Assignee: CHILD GUARD Inc
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Filing: 1984-11-16
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Granted: 1986-04-01
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Expires: 2004-11-16
Abstract
Abstract A ladder shield for use in preventing toddlers and the like from climbing the steps of a ladder, such as an above-ground swimming pool ladder, when the ladder or the device to which the ladder is coupled is unattended is disclosed. The ladder shield comprises a rigid yet slightly flexible shell of plastic which is sized and shaped to fit around the front and sides of the ladder so as to block access to the steps on the ladder. The ladder shield is removably secured to the ladder by a removable locking bar which when inserted extends through a pair of holes in the side walls of the shield. The locking bar is secured in place by a lock. When not being used to prevent access to the steps of the ladder, the ladder shield may be used as a mini-foot wash.
Inventors
- 👤 Charles Spurling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:49
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/006; E04; E04H; E04H4/00; E04H4/14; E04H4/144
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
155 words
A ladder shield for use in preventing a person from climbing up the steps of a ladder disposed for use, the ladder comprising a pair of spaced apart side rails and a plurality of steps attached between the side rails in spaced apart relationship, the ladder shield comprising: a. a shell of rigid material adapted to rest on the ladder from the front and dimensioned so as to cover the ladder in the front and extend around the sides of the side rails of the ladder said shell having a bottom wall for covering the ladder from the front and a pair of side walls each extending upward from the bottom wall at an angle of about 90° and extending around the sides of the side rails and having locking bar receiving openings, and b. means insertable through said locking bar receiving openings and said side walls for removably securing said shell to said ladder.
Claim 2
Dependent Claim
155 words
A ladder shield for use in preventing a person from climbing up the steps of a ladder disposed for use, the ladder comprising a pair of spaced apart side rails and a plurality of steps attached between the side rails in spaced apart relationship, the ladder shield comprising: a. a shell of rigid material adapted to rest on the ladder from the front and dimensioned so as to cover the ladder in the front and extend around the sides of the side rails of the ladder said shell having a bottom wall for covering the ladder from the front and a pair of side walls each extending upward from the bottom wall at an angle of about 90° and extending around the sides of the side rails and having locking bar receiving openings, and b. means insertable through said locking bar receiving openings and said side walls for removably securing said shell to said ladder.
Claim 3
Dependent Claim
33 words
The ladder shield of claim 1 and wherein said bottom wall is flat includes a bottom edge, a top edge and a pair of side edges and wherein said top edge is curved.
Claim 4
Dependent Claim
33 words
The ladder shield of claim 2 and wherein each side wall includes a bottom edge and an outer edge and wherein said outer edge curves inward at the top of the ladder shield.
Claim 5
Dependent Claim
55 words
The ladder shield of claim 3 and wherein each side wall includes a hole and wherein the means for removably securing the ladder shield to the ladder comprises a locking bar adapted to extend through the holes in the side walls from one end only and a lock for locking the locking bar in place.
Claim 6
Dependent Claim
17 words
The ladder shield of claim 4 and wherein said shell is made of a slightly flexible plastic.
Claim 7
Dependent Claim
60 words
The ladder shield of claim 5 and wherein the shell further includes a pair of transverse walls extending upward from the bottom wall, one near the bottom edge and the other near the top edge, whereby said ladder shield may also be used as a container for holding water or other material when not mounted on the ladder for use.
Claim 8
Dependent Claim
17 words
The ladder shield of claim 6 and wherein the top surface of the bottom wall is rippled.
Claim 9
Dependent Claim
21 words
The ladder shield of claim 7 and wherein said side walls include additional sets of holes to accommodate different sized ladders.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-31 | 1989-09-30 | 1990-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-31 | 1993-09-30 | 1994-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-31 | 1997-09-30 | 1998-04-01 | $7700.00 | Window Closed / Lapsed |