US4864672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dockplate
Assignee: J & J DOCKPLATES
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Filing: 1988-03-07
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Granted: 1989-09-12
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Expires: 2008-03-07
Abstract
Abstract A novel dockplate is made up of three pieces, hinge-connected together to form a safe bridging means. The end pieces or plates of the three-piece structure have breaks to permit a minimum angle incline when the dockplate is in use. The center or main portion of the dockplate has a base which lifts it above the upper planes of both end pieces.
Inventors
- 👤 John A. Altieri
- 👤 Joseph W. Altieri, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:03
CPC Classifications
B; B65; B65G; B65G69/00; B65G69/28; B65G69/30
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
162 words
A novel three-piece dockplate in its normal opened and unused mode comprising in combination a center weighted main plate, a ramp end plate and a bridging end plate, said end plates movably connected by connecting means along their lateral interior positions to said main plate, said main plate and said end plates having side rails along their longitudinal outer portions, said side rails positioned at right angles to the upper surface of said main and said end plates, said main plate being of uniform height above a horizontal level support surface and having a base thereunder for lifting said main plate above a plane of the terminal portions of said end plates, said base positioned only under said main plate, said ramp end plate having at least one break therein, said bridging end plate having at least two breaks therein, said terminal portions of said end plates tapered via said breaks downwardly at an angle from the remainder of said end plates.
Claim 2
Dependent Claim
162 words
A novel three-piece dockplate in its normal opened and unused mode comprising in combination a center weighted main plate, a ramp end plate and a bridging end plate, said end plates movably connected by connecting means along their lateral interior positions to said main plate, said main plate and said end plates having side rails along their longitudinal outer portions, said side rails positioned at right angles to the upper surface of said main and said end plates, said main plate being of uniform height above a horizontal level support surface and having a base thereunder for lifting said main plate above a plane of the terminal portions of said end plates, said base positioned only under said main plate, said ramp end plate having at least one break therein, said bridging end plate having at least two breaks therein, said terminal portions of said end plates tapered via said breaks downwardly at an angle from the remainder of said end plates.
Claim 3
Dependent Claim
36 words
The dockplate of claim 1 wherein a locking bar is fixed and positioned on an outer edge of one of said end plates, said bar adapted to lock said end plates together when not in use.
Claim 4
Dependent Claim
17 words
The dockplate of claim 1 wherein said bridging end plate is longer than said ramp end plate.
Claim 5
Dependent Claim
174 words
A novel three-piece dockplate in its normal and unused open position comprising in combination a center main plate, a ramp end plate and a bridging end plate, said ramp end plate and said bridging end plate connected on opposite sides by connection means to said center plate, said center main plate being level and of uniform height above the surface of a level support surface and having thereunder a weighted base or foundation, said base positioned only under said center main plate, when said entire dockplate is resting on said level support surface said weighted base lifts said center main plate above the planes of terminal ends of said ramp and bridging end plates, said ramp end plate and said bridging end plate having at least one break therein, said breaks adapted to reduce the angles of incline of upper surfaces of said ramp end plate and said bridging end plate, and wherein said connection means are hinges that permit said end plates to move to positions along an arc of about 180 degrees.
Claim 6
Dependent Claim
174 words
A novel three-piece dockplate in its normal and unused open position comprising in combination a center main plate, a ramp end plate and a bridging end plate, said ramp end plate and said bridging end plate connected on opposite sides by connection means to said center plate, said center main plate being level and of uniform height above the surface of a level support surface and having thereunder a weighted base or foundation, said base positioned only under said center main plate, when said entire dockplate is resting on said level support surface said weighted base lifts said center main plate above the planes of terminal ends of said ramp and bridging end plates, said ramp end plate and said bridging end plate having at least one break therein, said breaks adapted to reduce the angles of incline of upper surfaces of said ramp end plate and said bridging end plate, and wherein said connection means are hinges that permit said end plates to move to positions along an arc of about 180 degrees.
Claim 7
Dependent Claim
27 words
The dockplate of claim 4 wherein said ramp end plate has at least one break therein and said bridging end plate has at least two breaks therein.
Claim 8
Dependent Claim
23 words
The dockplate of claim 4 wherein said ramp end plate has one break therein and said bridging end plate has two breaks therein.
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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) | 1992-09-11 | 1993-03-13 | 1993-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-11 | 1997-03-13 | 1997-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-11 | 2001-03-13 | 2001-09-12 | $7700.00 | Window Closed / Lapsed |