US3941349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromechanically actuated gate valve apparatus
Assignee: Individual
•
Filing: 1974-07-03
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Granted: 1976-03-02
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Expires: 1994-07-03
Abstract
Abstract Gate valve apparatus is disclosed for use with holding tanks, such as on recreational vehicles, which utilizes electromechanical means to open and to close the valve.
Inventors
- 👤 Michael L. Pierson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:14
CPC Classifications
E; E03; E03D; E03D11/00; E03D11/02; E03D11/11; F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
162 words
Electromechanical valve apparatus for use with a holding tank of a recreational vehicle, comprising, in combination: housing means secured to the holding tank including a passage for the flow of fluids therethrough; gate means secured to the housing means and movable with respect to the passage to control the flow of fluids through the passage, including a valve gate, a rod secured to the valve gate and movable relative thereto for moving the valve gate, and a handle secured to the rod for manual actuation of the gate means; locking means including a portion secured to the housing and a portion secured to the rod engageable upon relative movement of the rod with respect to both the valve gate and the housing to prevent movement of the valve gate; electromechanical means for moving the gate means, including a solenoid disposed about a portion of the rod; and switch means for connecting and disconnecting a source of electrical energy to the electromechanical means.
Claim 2
Dependent Claim
162 words
Electromechanical valve apparatus for use with a holding tank of a recreational vehicle, comprising, in combination: housing means secured to the holding tank including a passage for the flow of fluids therethrough; gate means secured to the housing means and movable with respect to the passage to control the flow of fluids through the passage, including a valve gate, a rod secured to the valve gate and movable relative thereto for moving the valve gate, and a handle secured to the rod for manual actuation of the gate means; locking means including a portion secured to the housing and a portion secured to the rod engageable upon relative movement of the rod with respect to both the valve gate and the housing to prevent movement of the valve gate; electromechanical means for moving the gate means, including a solenoid disposed about a portion of the rod; and switch means for connecting and disconnecting a source of electrical energy to the electromechanical means.
Claim 3
Dependent Claim
30 words
The apparatus of claim 1 in which the housing means comprises an upper housing and a lower housing; and the gate valve is slidable within the upper and lower housings.
Claim 4
Dependent Claim
28 words
The apparatus of claim 2 in which the electromechanical means further includes spring means for biasing the gate valve to prevent the flow of fluids through the passage.
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) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |