US3744516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined filling device and vent cut-off valve for electric storage cells
Assignee: Individual
•
Filing: 1971-02-26
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Granted: 1973-07-10
•
Expires: 1991-02-26
Abstract
Abstract A combined filling device and vent cut-off valve for an electric storage cell having a tank with an electrolyte which is adapted to be replenished by distilled water. A stopper mounted on a cover plate is provided for closing the filling hole. The vent cut-off valve is effectively arranged between the space above the electrolyte in the tank and a vent provided in a cover plate and includes a valve member having a piston slidably mounted in a cylinder with a port and operative connected to the cover plate. When the stopper is in position in the filling hole, the valve member is in an open position in which the gas in the space above the electrolyte can escape to the atmosphere via the vent and when the stopper is removed from the filling hole the valve member is automatically closed to prevent the escape of gas to the atmosphere. The device can be mounted on the filling hole of any conventional battery by threaded bushings. The device is adapted for multi-compartment storage cells in which case the cover plate supports each stopper and is operatively connected to each cut-off valve.
Inventors
- 👤 R Rowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:07
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/60; H01M50/609; H01M50/627; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86292; Y10T137/86324
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
212 words
A combined filling device and vent cut-off valve for an electric storage cell having a plurality of compartments each containing electrolyte, a filling hole for replenishing the electrolyte, and a vent allowing the escape of gas from the compartments to the atmosphere, comprising a plurality of stoppers, each stopper being engageable with an associated said filling hole, a plurality of vent cut-off valves, each vent cutoff valve being disposed between a space above the electrolyte in an associated said compartment and an associated said vent, each said valve including a valve member axially slidably mounted in a cylinder whose axis is parallel to and spaced from the axis of the associated filling hole, and a port extending through the wall of said cylinder, each port being in communication with the space above the electrolyte and its associated vent, each valve member having a first position in which its associated port is open and a second position in which said associated port is closed, an operating member for inserting and removing all the stoppers from their filling holes and for simultaneously opening and closing all the valves respectively, and detent means for positively retaining each valve in said second position until said operating member brings the stoppers into position in the filling holes.
Claim 2
Dependent Claim
212 words
A combined filling device and vent cut-off valve for an electric storage cell having a plurality of compartments each containing electrolyte, a filling hole for replenishing the electrolyte, and a vent allowing the escape of gas from the compartments to the atmosphere, comprising a plurality of stoppers, each stopper being engageable with an associated said filling hole, a plurality of vent cut-off valves, each vent cutoff valve being disposed between a space above the electrolyte in an associated said compartment and an associated said vent, each said valve including a valve member axially slidably mounted in a cylinder whose axis is parallel to and spaced from the axis of the associated filling hole, and a port extending through the wall of said cylinder, each port being in communication with the space above the electrolyte and its associated vent, each valve member having a first position in which its associated port is open and a second position in which said associated port is closed, an operating member for inserting and removing all the stoppers from their filling holes and for simultaneously opening and closing all the valves respectively, and detent means for positively retaining each valve in said second position until said operating member brings the stoppers into position in the filling holes.
Claim 3
Dependent Claim
27 words
A device according to claim 1, wherein stop means are provided for limiting the movement of the valve member between said first position and said second position.
Claim 4
Dependent Claim
33 words
A device according to claim 2, wherein one stop means is mounted at the upper end of the cylinder, and wherein another stop means is formed by the lower end of the cylinder.
Claim 5
Dependent Claim
29 words
A device according to claim 3, wherein a disc is provided at the lower end of the valve member cooperating with the lower stop means in said second position.
Claim 6
Dependent Claim
37 words
A device according to claim 1, wherein the valve member includes a piston mounted on a rod for movement in the cylinder, the diameter of the piston being substantially equal to the interior diameter of the cylinder.
Claim 7
Dependent Claim
62 words
A device according to claim 5, wherein a portion of the rod depends from the piston, the detent being mounted on said portion of the rod and wherein the lower end of the cylinder has a bore whose diameter is greater than that of said portion of the rod but less than the effective diameter of the rod portion at the detent.
Claim 8
Dependent Claim
64 words
A device according to claim 5, wherein the detent means comprises an enlarged section disposed above the piston and spaced therefrom said enlarged section being formed of resilient material which is compressed by the cylinder in the first position and is adapted to expand in a space disposed above the cylinder in the second position for maintaining the valve member in said second position.
Claim 9
Dependent Claim
37 words
A device according to claim 1, wherein the operating means comprises a cover plate on which is supported said stopper and means engageable with the valve member, and wherein the vent is arranged in the cover plate.
Claim 10
Dependent Claim
32 words
A device according to claim 1, further comprising means releasably connecting the operating means to the valve member including a head portion defining shoulders and resilient arms releasably engageable with the shoulders.
Claim 11
Dependent Claim
41 words
A device according to claim 1, wherein a tongue is provided on the piston adapted to cooperate in the port which is formed as a vertical slot in the cylinder for guiding the valve member between said first and second positions.
Claim 12
Dependent Claim
43 words
A device according to claim 1, wherein the filling hole is internally threaded and further comprising an externally threaded bushing on which the vent cut-off valve is supported and in which is positioned a sleeve the stopper being cooperatively engageable with said sleeve.
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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |