US3907250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sluice gate
Assignee: Individual
•
Filing: 1973-08-02
•
Granted: 1975-09-23
•
Expires: 1993-08-02
Abstract
Abstract The disclosure herein shows a means for controlled forces acting to provide one hundred percent horizontal motion on a sluice gate to move a seal or sealing surface on the sluice gate to and from contact or sealing position with a frame, and to provide pressure to maintain sealing and to maintain a seal in a ''''no contact'''' position during hoisting or lowering of the gate. A lock means is provided for top and bottom of the gate and is positioned in accord with the ''''no contact'''' travel position.
Inventors
- 👤 John J Kane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:56
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/30; F16K3/316; F16K3/3165; F16K3/02; F16K3/0227
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
256 words
A closure comprising a frame and a gate, said frame defining an opening, said frame having vertically extending flat surface facing toward said gate, first reaction means on said frame, said first reaction means comprising two vertically extending channel track members channel shaped in cross section, spaced outwardly from said flat surface and the legs of one said channel extending toward the other said channel defining a space between said track members at each side of said opening, said channel track members extending upwardly above said opening a distance substantially equal to the height of said opening, to receive said gate in open position, sealing means on said gate adapted to cooperate with said flat surface on said frame to form a seal, spaced actuators attached to each side of said gate, each said actuator comprising a hydraulic cylinder fixed to said gate and a piston reciprocatably received in each said cylinder, each said cylinder having an opening in a side thereof exposing a portion of said piston, second reaction means comprising bar means extending through the said opening in each said cylinder and fixed to said piston, and a roller fixed to each of said bar means disposed between said legs of each said channel track, each said piston being confined in a said cylinder allowing said cylinder and said gate to move a predetermined distance toward and away from said flat surface as said piston reciprocates in said cylinder, hydraulic fluid pressure means connected to said cylinder for moving said piston in said cylinder.
Claim 2
Dependent Claim
256 words
A closure comprising a frame and a gate, said frame defining an opening, said frame having vertically extending flat surface facing toward said gate, first reaction means on said frame, said first reaction means comprising two vertically extending channel track members channel shaped in cross section, spaced outwardly from said flat surface and the legs of one said channel extending toward the other said channel defining a space between said track members at each side of said opening, said channel track members extending upwardly above said opening a distance substantially equal to the height of said opening, to receive said gate in open position, sealing means on said gate adapted to cooperate with said flat surface on said frame to form a seal, spaced actuators attached to each side of said gate, each said actuator comprising a hydraulic cylinder fixed to said gate and a piston reciprocatably received in each said cylinder, each said cylinder having an opening in a side thereof exposing a portion of said piston, second reaction means comprising bar means extending through the said opening in each said cylinder and fixed to said piston, and a roller fixed to each of said bar means disposed between said legs of each said channel track, each said piston being confined in a said cylinder allowing said cylinder and said gate to move a predetermined distance toward and away from said flat surface as said piston reciprocates in said cylinder, hydraulic fluid pressure means connected to said cylinder for moving said piston in said cylinder.
Claim 3
Dependent Claim
30 words
The closure recited in claim 1 wherein two said cylinders are fixed to each side of said gate, each said cylinder has roller means received in one of said channels.
Claim 4
Dependent Claim
84 words
The closure recited in claim 1 wherein a roller is fixed to each end of each of said bar means. 4. The closure recited in claim 3 wherein each said cylinder has a second cylinder disposed alongside it and, each said cylinder has a said piston therein and, a hole in the side of each said cylinder, said bar means, each being fixed to a side of two adjacent said pistons, one said roller being disposed on each end of the said bar means.
Claim 5
Dependent Claim
61 words
The closure recited in claim 1 wherein each said actuator comprises three said cylinders disposed adjacent each other and each said cylinder has a piston therein and, each said cylinder has a bar and a hole in the end of said bar being fixed to the piston in each said cylinder and, a roller disposed on each end of said bar.
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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) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |