US3879227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery vent plug
Assignee: Globe Union Inc
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Filing: 1973-12-10
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Granted: 1975-04-22
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Expires: 1993-12-10
Abstract
Abstract A vent plug for a storage battery which contains baffles to retain the electrolyte while affording egress of cell vent gases through a porous diffuser contained in a first compartment immediately adjacent a second compartment contiguous the gas outlet. In one embodiment, a gang type plug assembly has floors in the base portion of the assembly and are pitched or gabled to afford maximum drainback of electrolyte and tubular passages terminating in a pointed wall and located above the usual cell vent opening in the battery provide for efficient drainback. The entire multiple vent plug assembly is hermetically sealed so as to provide maximum venting of the gases through the filter while at the same time, affording a tamper proof unit. In another embodiment, a single vent plug is provided with the two compartments and the second compartment located over the compartment containing the diffuser.
Inventors
- 👤 Roy Erving Hennen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:10
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/30; H01M50/308; H01M50/383; H01M50/394; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
209 words
A vent plug for a storage battery filling vent comprising a holloW body member composed of a base, a peripheral wall and a cover; a vent closure engaging portion extending from said base having an opening disposed in said engaging portion and in communication with said hollow body member; partition means extending substantially across said hollow body member; a porous diffuser disposed in said hollow body and in communication with said vent closure opening, said partition means arranged to afford obstruction to the passage of any liquid electrolyte from said vent closure opening to said diffuser; said hollow body member defining a compartment spaced from and in communication with said porous diffuser and having an elongated outlet opening to the outside of said hollow body member, the ratio of the volume in cubic inches of said compartment to the area of said elongated outlet in square inches being within the range of 2:1 to 5:1, said elongated outlet in said compartment being of a smaller cross sectional area than the cross sectional area of said compartment and extending over a substantial distance of said compartment so as to permit an ignition of battery cell vent gases in said compartment to effect controlled rapid expansion whereby any flame is extinguished.
Claim 2
Dependent Claim
209 words
A vent plug for a storage battery filling vent comprising a holloW body member composed of a base, a peripheral wall and a cover; a vent closure engaging portion extending from said base having an opening disposed in said engaging portion and in communication with said hollow body member; partition means extending substantially across said hollow body member; a porous diffuser disposed in said hollow body and in communication with said vent closure opening, said partition means arranged to afford obstruction to the passage of any liquid electrolyte from said vent closure opening to said diffuser; said hollow body member defining a compartment spaced from and in communication with said porous diffuser and having an elongated outlet opening to the outside of said hollow body member, the ratio of the volume in cubic inches of said compartment to the area of said elongated outlet in square inches being within the range of 2:1 to 5:1, said elongated outlet in said compartment being of a smaller cross sectional area than the cross sectional area of said compartment and extending over a substantial distance of said compartment so as to permit an ignition of battery cell vent gases in said compartment to effect controlled rapid expansion whereby any flame is extinguished.
Claim 3
Dependent Claim
209 words
A vent plug for a storage battery filling vent comprising a holloW body member composed of a base, a peripheral wall and a cover; a vent closure engaging portion extending from said base having an opening disposed in said engaging portion and in communication with said hollow body member; partition means extending substantially across said hollow body member; a porous diffuser disposed in said hollow body and in communication with said vent closure opening, said partition means arranged to afford obstruction to the passage of any liquid electrolyte from said vent closure opening to said diffuser; said hollow body member defining a compartment spaced from and in communication with said porous diffuser and having an elongated outlet opening to the outside of said hollow body member, the ratio of the volume in cubic inches of said compartment to the area of said elongated outlet in square inches being within the range of 2:1 to 5:1, said elongated outlet in said compartment being of a smaller cross sectional area than the cross sectional area of said compartment and extending over a substantial distance of said compartment so as to permit an ignition of battery cell vent gases in said compartment to effect controlled rapid expansion whereby any flame is extinguished.
Claim 4
Dependent Claim
209 words
A vent plug for a storage battery filling vent comprising a holloW body member composed of a base, a peripheral wall and a cover; a vent closure engaging portion extending from said base having an opening disposed in said engaging portion and in communication with said hollow body member; partition means extending substantially across said hollow body member; a porous diffuser disposed in said hollow body and in communication with said vent closure opening, said partition means arranged to afford obstruction to the passage of any liquid electrolyte from said vent closure opening to said diffuser; said hollow body member defining a compartment spaced from and in communication with said porous diffuser and having an elongated outlet opening to the outside of said hollow body member, the ratio of the volume in cubic inches of said compartment to the area of said elongated outlet in square inches being within the range of 2:1 to 5:1, said elongated outlet in said compartment being of a smaller cross sectional area than the cross sectional area of said compartment and extending over a substantial distance of said compartment so as to permit an ignition of battery cell vent gases in said compartment to effect controlled rapid expansion whereby any flame is extinguished.
Claim 5
Dependent Claim
46 words
The vent plug as defined in claim 1 wherein said vent closure engaging portion includes a plurality of said engaging portions to form a multiple vent plug assembly, at least one said diffuser and compartment, with said partition means extending laterally across said hollow body member.
Claim 6
Dependent Claim
35 words
The multiple vent plug assembly as defined in claim 2 wherein a single said compartment and a single said porous diffuser are disposed in said vent plug and between two of said vent closure openings.
Claim 7
Dependent Claim
18 words
The vent plug as defined in claim 1 wherein said diffuser is composed of a porous ceramic stone.
Claim 8
Dependent Claim
18 words
The vent plug as defined in claim 1 wherein said diffuser is composed of a microporous polyolefin material.
Claim 9
Dependent Claim
32 words
The multiple vent plug assembly as defined in claim 2 wherein the base is constructed with a gabled floor with said vent closure openings disposed at the lowest portion of said gables.
Claim 10
Dependent Claim
34 words
The multiple vent plug assembly as defined in claim 2 wherein said vent closure openings are formed from a tubular member and the end portion of the tubular member terminates at an oblique angle.
Claim 11
Dependent Claim
45 words
The multiple vent plug assembly as defined in claim 2 wherein said partition means includes linear and curved wall baffle sections extending from said base and said linear baffles extend from the cover terminating a short distance from the base to provide a passage therebetween.
Claim 12
Dependent Claim
32 words
The multiple vent plug assembly as defined in claim 2 further including another compartment having four wall sections engaging the top of said diffuser to seal said porous diffuser in said assembly.
Claim 13
Dependent Claim
34 words
The multiple vent plug assembly as defined in claim 2 wherein said opening in said compartment is of a slotted configuration having a width in the range of about .020 to about .040 inch.
Claim 14
Dependent Claim
27 words
The multiple vent plug assembly as defined in claim 10 wherein said compartment has a volume in the range of about .0124 to about .050 cubic inches.
Claim 15
Dependent Claim
31 words
The multiple vent plug assembly as defined in claim 11 wherein said diffuser has an open pore volume in the range of about one-half to twice the volume of said compartment.
Claim 16
Dependent Claim
25 words
The multiple vent plug assembly as defined in claim 2 wherein said compartment includes a tapered floor and an extending portion disposed adjacent said outlet.
Claim 17
Dependent Claim
21 words
The vent plug assembly as defined in claim 1 wherein said vent plug assembly is composed of a polymeric, thermoplastic material.
Claim 18
Dependent Claim
27 words
The vent plug as defined in claim 1 wherein said plug is of unitary construction and said compartment is disposed above said diffuser and in said cover.
Claim 19
Dependent Claim
23 words
The vent plug as defined in claim 15 wherein said outlet comprises two outlets positioned diametrically opposite to each other in said cover.
Claim 20
Dependent Claim
39 words
The vent plug as defined in claim 16 wherein said partition means includes a substantially T-shaped tubular baffle member disposed internally of said hollow body member and spaced from said opening in said engaging portion and said peripheral wall.
Claim 21
Dependent Claim
24 words
The vent plug as defined in claim 15 wherein said compartment has a single outlet opening to the outside of said hollow body member.
Claim 22
Dependent Claim
24 words
The vent plug as defined in claim 18 wherein said partition means includes disc type baffle members disposed internally of said hollow body member.
Claim 23
Dependent Claim
145 words
A vent plug for a storage battery filling vent comprising a hollow body member composed of a base, a peripheral wall, and a cover; a vent closure engaging portion extending from said base having an opening disposed in said engaging portion and in communication with said hollow body member; a porous diffuser disposed in said hollow body and in communication with said vent closure opening; said hollow body member having a compartment spaced from and in communication with said porous diffuser, said compartment having an elongated outlet opening to the outside of said hollow body member, the ratio of the volume in cubic inches of said compartment to the cross sectional area of said elongated outlet in square inches being within the range of 2:1 to .5:1, said elongated outlet being of a smaller cross sectional area than the cross sectional area of said compartment.
Claim 24
Dependent Claim
145 words
A vent plug for a storage battery filling vent comprising a hollow body member composed of a base, a peripheral wall, and a cover; a vent closure engaging portion extending from said base having an opening disposed in said engaging portion and in communication with said hollow body member; a porous diffuser disposed in said hollow body and in communication with said vent closure opening; said hollow body member having a compartment spaced from and in communication with said porous diffuser, said compartment having an elongated outlet opening to the outside of said hollow body member, the ratio of the volume in cubic inches of said compartment to the cross sectional area of said elongated outlet in square inches being within the range of 2:1 to .5:1, said elongated outlet being of a smaller cross sectional area than the cross sectional area of said compartment.
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) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |