Patent US3630786A successfully refreshed from Google Patents.
US3630786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage battery having liquid-filling means
Assignee: Yuasa Corp
•
Filing: 1969-10-07
•
Granted: 1971-12-28
•
Expires: 1989-10-07
Abstract
Abstract This invention relates to a liquid filling means equipped monoblock battery. The filling means comprises a cylindrical liquid receptacle and a rotary disc fitted thereinto and functions in the manner that when the disc is turned to bring its holes into communication with the liquid inlets of the cylindrical liquid receptacle, the exhaust ports of the receptacle are closed and when the holes are disconnected from the inlets, the ports communicates with the holes. The inlets and ports are connected to cells by ducts and exhaust pipes, respectively, and the lower ends of the ducts are on the same level as the normal level of electrolyte.
Inventors
- 👤 Motoharu Nishimura
- 👤 Masatugu Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:59
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/60; H01M50/609; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
21 words
A storage battery having a liquid-filling means according to claim 1 wherein said rotary disc has a heavy body attached thereto.
Claim 2
Dependent Claim
33 words
A storage battery having a liquid-filling means according to claim 1 wherein the total number of said inlets and said exhaust ports on the bottom of the receptacle is in excess of three.
Claim 3
Dependent Claim
34 words
A storage battery having a liquid-filling means according to claim 1 wherein said liquid inlets and exhaust ports respectively are formed on a circumference line of small diameter concentric with the said cylindrical receptacle.
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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |