Patent EP0903774A2 successfully refreshed from Google Patents.
Patent US3970169A successfully refreshed from Google Patents.
US3970169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gangway ladder
Assignee: Individual
•
Filing: 1975-11-07
•
Granted: 1976-07-20
•
Expires: 1995-11-07
Abstract
Abstract A gangway-ladder, for connecting a floating mooring platform to the shore whilst accommodating changes of level of the platform due to tides, has a guide structure with channels received individual steps capable of forming a ladder, the floating platform having beams engaging under the steps so that, as the platform rises with the tide, te beam means engage under the steps and successively lift them until, at the highest position of the platform, the steps are all in a horizontal plane.
Inventors
- 👤 Bernabe Hernandez Gonzalez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:23
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04; E02B3/06; E02B3/062; E02B3/064; E01; E01D; E01D15/00; E01D15/24; Y; Y02; Y02A; Y02A10/00; Y02A10/11
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
135 words
A gangway-ladder, for connecting a floating mooring platform to a dockside wall, comprising: i. a guide structure secured to the dockside wall and defining a plurality of parallel vertical guide channels disposed in a row extending outwardly from the dockside wall, the base of each successive chanel considered in the direction away from the dockside wall being lower than the base of the preceding channel, ii. a plurality of parallel steps disposed one in each of said guide channels, iii. lifting beam means secured to the floating mooring platform and positioned to extend beneath the steps, and iv. coupling means connecting the floating mooring platform and the dockside wall such that the floating mooring platform is held at a fixed spaced relationship from said dockside wall but is able to move vertically with respect thereto.
Claim 2
Dependent Claim
135 words
A gangway-ladder, for connecting a floating mooring platform to a dockside wall, comprising: i. a guide structure secured to the dockside wall and defining a plurality of parallel vertical guide channels disposed in a row extending outwardly from the dockside wall, the base of each successive chanel considered in the direction away from the dockside wall being lower than the base of the preceding channel, ii. a plurality of parallel steps disposed one in each of said guide channels, iii. lifting beam means secured to the floating mooring platform and positioned to extend beneath the steps, and iv. coupling means connecting the floating mooring platform and the dockside wall such that the floating mooring platform is held at a fixed spaced relationship from said dockside wall but is able to move vertically with respect thereto.
Claim 3
Dependent Claim
30 words
A gangway-ladder, as claimed in claim 1, wherein said guide structure consists of two laterally spaced guide frames mounted in parallel positions extending at right angles from the dockside wall.
Claim 4
Dependent Claim
26 words
A gangway-ladder, as claimed in claim 1, further comprising float means secured at the underside of the lifting beam means remote from the floating mooring platform.
Claim 5
Dependent Claim
42 words
A gangway-ladder, as claimed in claim 1, wherein said coupling means comprises slotted uprights secured on the dockside wall adjacent an end of the guide structure, and stop means mounted on the floating mooring platform and engaged slidably in said slotted uprights.
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) | 1979-07-20 | 1980-01-19 | 1980-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-20 | 1984-01-19 | 1984-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-20 | 1988-01-19 | 1988-07-20 | $7700.00 | Window Closed / Lapsed |