Patent US5033392A successfully refreshed from Google Patents.
US5033392A
Expired / Lapsed
US
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Apparatus for loading and unloading passengers from watercraft
Assignee: Waagner Biro AG
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Filing: 1990-03-21
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Granted: 1991-07-23
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Expires: 2010-03-21
Abstract
Abstract Apparatus for loading and unloading passengers from watercraft, such as for use in boat rides at amusement parks, include a substantially planar inclined platform mounted for rotation about an axis perpendicular to the plane of the platform. The platform extends obliquely to the path of the watercraft so that a section of the platform is submerged. Watercraft traveling along a predetermined path are engaged by a section of the rotating platform as it surfaces and is carried by the platform over an arcuate path as it rotates. The watercraft is disengaged from the rotating platform as the section of the platform on which it rests submerges.
Inventors
- 👤 Walter Schemitsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:21
CPC Classifications
A; A63; A63G; A63G3/00; B; B61; B61K; B61K1/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
145 words
Apparatus for loading and unloading passengers from watercraft moveable along a predetermined path in a body of water, comprising: means for guiding watercraft in a predetermined path through a body of water; a substantially planar platform mounted along said predetermined path for rotation about an axis substantially perpendicular to he plane of said platform and with said plane of said platform extending obliquely to said predetermined path of aid watercraft such that a portion of said platform is submerged in said body of water; and means for rotating said platform; whereby a watercraft traveling along said predetermined path is engaged by a section of said rotation platform as aid rotating platform surfaces from a submerged position, is carried by said platform as the platform rotates, and is disengaged from the section of said rotating platform at a point of disengagement as the platform section submerges.
Claim 2
Dependent Claim
145 words
Apparatus for loading and unloading passengers from watercraft moveable along a predetermined path in a body of water, comprising: means for guiding watercraft in a predetermined path through a body of water; a substantially planar platform mounted along said predetermined path for rotation about an axis substantially perpendicular to he plane of said platform and with said plane of said platform extending obliquely to said predetermined path of aid watercraft such that a portion of said platform is submerged in said body of water; and means for rotating said platform; whereby a watercraft traveling along said predetermined path is engaged by a section of said rotation platform as aid rotating platform surfaces from a submerged position, is carried by said platform as the platform rotates, and is disengaged from the section of said rotating platform at a point of disengagement as the platform section submerges.
Claim 3
Dependent Claim
27 words
Apparatus as recited in claim 1 wherein said platform is substantially disc-shaped, and wherein said axis of rotation passes through a central region of said disc-shaped platfrom.
Claim 4
Dependent Claim
15 words
Apparatus as recited in claim 1 wherein said platform is formed of a liquid-permeable material.
Claim 5
Dependent Claim
18 words
Apparatus as recited in claim 1 wherein said platform includes a fine porous covering material permeable to liquid.
Claim 6
Dependent Claim
14 words
Apparatus as recited in claim 4 wherein said covering material is a high-friction material.
Claim 7
Dependent Claim
70 words
Apparatus as recited in claim 1 wherein said means for guiding watercraft in a predetermined path comprises track means to which said watercraft is coupled as it moves along a predetermined path, said watercraft becoming uncoupled from said track means substantially at said point of engagement of said watercraft by said platform, and said watercraft becoming re-coupled to said track means substantially at said point of disengagement from said platform.
Claim 8
Dependent Claim
12 words
Apparatus as recited in claim 1 wherein said watercraft comprises floatable boats.
Claim 9
Dependent Claim
36 words
Apparatus as recited in claim 1 further including traffic guidance means communicating between said platform and a stationary surrounding area for facilitating passenger entry onto and exit from said platform from and to said surrounding area.
Claim 10
Dependent Claim
36 words
Apparatus as recited in claim 8 wherein said traffic guidance means define a path over which passengers move between said stationary area and a central region of said platform proximate to said axis of rotation thereof.
Claim 11
Dependent Claim
34 words
Apparatus as recited in claim 9 wherein said traffic guidance means comprise a bridge structure extending between said surrounding area and a central region of said platform proximate to said axis of rotation thereof.
Claim 12
Dependent Claim
71 words
Apparatus as recited in claim 1 wherein said watercraft travels on said rotating platform from said point of engagement therewith to said point of disengagement therefrom over an arcuate path at an angular speed determined by the rate at which said platform rotates, and wherein said angular speed of said watercraft over said arcuate path on said rotating platform is greater than the speed of said watercraft along said predetermined path.
Claim 13
Dependent Claim
27 words
Apparatus as recited in claim 11 wherein the density of watercraft traveling on said rotating platform is greater than the density of watercraft along said predetermined path.
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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) | 1994-07-22 | 1995-01-21 | 1995-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-22 | 1999-01-21 | 1999-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-22 | 2003-01-21 | 2003-07-23 | $7700.00 | Window Closed / Lapsed |