US3693355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apron construction for automatic water gate
Assignee: Individual
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Filing: 1971-03-24
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Granted: 1972-09-26
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Expires: 1991-03-24
Abstract
Abstract The apron is made as a separate unit and fixed to the frame by a U-link which is secured to a frame beam by a crosspiece fixedly connected to the upper end of the apron, and by an inverted Ulink which is secured to a spaced portion of the frame beam by a second crosspiece fixedly connected to gussets forming part of the apron. Stops are provided to fix the position of the inverted U-link on the frame beam, and shims are utilized with the second crosspiece to effect precise adjustment of the centering of the apron on the axis of rotation of the gate.
Inventors
- 👤 Jacques L Dubouchet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:58
CPC Classifications
E; E02; E02B; E02B7/00; E02B7/20; E02B7/205
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
206 words
A water gate including a frame, means on said frame for mounting the gate for pivotal movement about a fixed axis, a separate, removable, sector-shaped gate apron of given curvature, and means supPorting said apron on said frame so that it is centered with respect to said axis, said supporting means comprising a first means fixed to said frame and a second means fixed to said apron and cooperative with said first means to position the apron relative to said frame so that the distance of said apron from said fixed axis is comparable to the length of a radius from said axis of the curvature of said apron and so that the plane of curvature of the apron is parallel to said fixed axis, first connecting means for securing said first and second means in cooperative relation and said apron to said frame, a third means fixed to said frame spaced substantially from said first connecting means and located adjacently said apron and a fourth means fixed to said apron and cooperative with said third means to center the said apron on said pivotal axis, and second connecting means for securing said third and fourth means in cooperative relation and said apron to said frame.
Claim 2
Dependent Claim
206 words
A water gate including a frame, means on said frame for mounting the gate for pivotal movement about a fixed axis, a separate, removable, sector-shaped gate apron of given curvature, and means supPorting said apron on said frame so that it is centered with respect to said axis, said supporting means comprising a first means fixed to said frame and a second means fixed to said apron and cooperative with said first means to position the apron relative to said frame so that the distance of said apron from said fixed axis is comparable to the length of a radius from said axis of the curvature of said apron and so that the plane of curvature of the apron is parallel to said fixed axis, first connecting means for securing said first and second means in cooperative relation and said apron to said frame, a third means fixed to said frame spaced substantially from said first connecting means and located adjacently said apron and a fourth means fixed to said apron and cooperative with said third means to center the said apron on said pivotal axis, and second connecting means for securing said third and fourth means in cooperative relation and said apron to said frame.
Claim 3
Dependent Claim
272 words
A water gate including a frame, means on said frame for mounting the gate for pivotal movement about a fixed axis, a separate sector-shaped gate apron of given curvature, and means supporting said apron on said frame so that it is centered with respect to said axis, said supporting means comprising a first member fixed to said frame and a second member fixed to said apron and cooperative with said first member to position the apron relative to said frame so that the distance of said apron from said fixed axis is comparable to the length of a radius from said axis of the curvature of said apron, said first member being a stop element and said second member being a first fastening bar, first connecting means including said first fastening bar and a first inverted U-link straddling a first part of said frame, for securing said first and second members in cooperative relation and said apron to said frame, second connecting means spaced substantially from said first connecting means and located adjacently to said gate for securing said apron to said frame so that the plane of curvature of the apron is parallel to said fixed axis, said second connecting means comprising a second U-link turned upwards and fitted on a second part of said frame, and a second fastening bar fixed to an upper portion of said gate apron and bearing on a surface provided on said second frame part and disposed parallel to said pivotal axis, and means cooperable with said first connecting means to precisely center said apron on said pivotal axis in the fully secured condition thereof.
Claim 4
Dependent Claim
272 words
A water gate including a frame, means on said frame for mounting the gate for pivotal movement about a fixed axis, a separate sector-shaped gate apron of given curvature, and means supporting said apron on said frame so that it is centered with respect to said axis, said supporting means comprising a first member fixed to said frame and a second member fixed to said apron and cooperative with said first member to position the apron relative to said frame so that the distance of said apron from said fixed axis is comparable to the length of a radius from said axis of the curvature of said apron, said first member being a stop element and said second member being a first fastening bar, first connecting means including said first fastening bar and a first inverted U-link straddling a first part of said frame, for securing said first and second members in cooperative relation and said apron to said frame, second connecting means spaced substantially from said first connecting means and located adjacently to said gate for securing said apron to said frame so that the plane of curvature of the apron is parallel to said fixed axis, said second connecting means comprising a second U-link turned upwards and fitted on a second part of said frame, and a second fastening bar fixed to an upper portion of said gate apron and bearing on a surface provided on said second frame part and disposed parallel to said pivotal axis, and means cooperable with said first connecting means to precisely center said apron on said pivotal axis in the fully secured condition thereof.
Claim 5
Dependent Claim
75 words
A water gate such as defined in claim 2, in which said first frame part is a portion of a frame arm, in which said second frame part is a reduced end portion of said frame arm, and in which said first connecting means comprises a pair of spaced gussets fixedly connected at their outer end edges to said gate apron and fixedly connected at their inner end edges to and carrying said second member.
Claim 6
Dependent Claim
31 words
A water gate as defined in claim 2, in which said means cooperable with said first connecting means comprises a shim fitted between said first frame part and said second member.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |