IT1293429B1 - Lead acid accumulator for motor vehicle - has porous filtering element disposed in duct allowing gases to pass but not electrolyte, the filtering element having porous substrate covered by membrane - Google Patents

Lead acid accumulator for motor vehicle - has porous filtering element disposed in duct allowing gases to pass but not electrolyte, the filtering element having porous substrate covered by membrane

Info

Publication number
IT1293429B1
IT1293429B1 ITTO970614A IT1293429B1 IT 1293429 B1 IT1293429 B1 IT 1293429B1 IT TO970614 A ITTO970614 A IT TO970614A IT 1293429 B1 IT1293429 B1 IT 1293429B1
Authority
IT
Italy
Prior art keywords
filtering element
porous
membrane
lead acid
electrolyte
Prior art date
Application number
Other languages
Italian (it)
Inventor
Giuseppe Fossati
Marco Bassini
Giordano Ferla
Original Assignee
Ind Accumulatori Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ind Accumulatori Srl filed Critical Ind Accumulatori Srl
Priority to IT97TO000614 priority Critical patent/IT1293429B1/en
Priority to GB9814516A priority patent/GB2327141B/en
Priority to ES009801422A priority patent/ES2152830B1/en
Priority to DE19830557A priority patent/DE19830557B4/en
Priority to BR9803527-4A priority patent/BR9803527A/en
Priority to FR9808811A priority patent/FR2766014B1/en
Priority to PL327368A priority patent/PL191479B1/en
Priority to US09/112,238 priority patent/US6120931A/en
Publication of ITTO970614A1 publication Critical patent/ITTO970614A1/en
Application granted granted Critical
Publication of IT1293429B1 publication Critical patent/IT1293429B1/en

Links

Landscapes

  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Gas Exhaust Devices For Batteries (AREA)
  • Filling, Topping-Up Batteries (AREA)

Abstract

The lead acid accumulator has a container (2) with at least one hole (4) defining a vent duct for the discharge to atmosphere of gases developed in the accumulator. A porous filtering element (90) is disposed in the duct to allow gases but prevent the electrolyte passing through. The filtering element is constituted by a porous substrate (92) covered by a polytetra-fluoroethylene membrane (94). Also claimed is a plug or closure element (5) for a topping-up hole of the accumulator, the plug having a central cylindrical portion (50) and an adjacent enlarged end portion (52) defining an annular bearing seat for the filtering element.
IT97TO000614 1997-07-10 1997-07-10 Lead acid accumulator for motor vehicle - has porous filtering element disposed in duct allowing gases to pass but not electrolyte, the filtering element having porous substrate covered by membrane IT1293429B1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
IT97TO000614 IT1293429B1 (en) 1997-07-10 1997-07-10 Lead acid accumulator for motor vehicle - has porous filtering element disposed in duct allowing gases to pass but not electrolyte, the filtering element having porous substrate covered by membrane
GB9814516A GB2327141B (en) 1997-07-10 1998-07-03 A lead-acid accumulator, particularly for motor vehicles
ES009801422A ES2152830B1 (en) 1997-07-10 1998-07-06 LEAD-ACID ACCUMULATOR, PARTICULARLY FOR AUTOMOBILE VEHICLES.
DE19830557A DE19830557B4 (en) 1997-07-10 1998-07-08 Plug or closure element for a lead-acid accumulator, in particular for motor vehicles
BR9803527-4A BR9803527A (en) 1997-07-10 1998-07-08 Lead-acid accumulator, particularly for motor vehicles.
FR9808811A FR2766014B1 (en) 1997-07-10 1998-07-09 LEAD ACID ACCUMULATOR, AND CLOSING AND FILTRATION ELEMENTS FOR SUCH AN ACCUMULATOR
PL327368A PL191479B1 (en) 1997-07-10 1998-07-09 Storage battery in particular for motor vehicles, storage battery filler opening closing element and its associated filter cartridge
US09/112,238 US6120931A (en) 1997-07-10 1998-07-09 Lead-acid accumulator, particularly for motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT97TO000614 IT1293429B1 (en) 1997-07-10 1997-07-10 Lead acid accumulator for motor vehicle - has porous filtering element disposed in duct allowing gases to pass but not electrolyte, the filtering element having porous substrate covered by membrane

Publications (2)

Publication Number Publication Date
ITTO970614A1 ITTO970614A1 (en) 1999-01-10
IT1293429B1 true IT1293429B1 (en) 1999-03-01

Family

ID=11415851

Family Applications (1)

Application Number Title Priority Date Filing Date
IT97TO000614 IT1293429B1 (en) 1997-07-10 1997-07-10 Lead acid accumulator for motor vehicle - has porous filtering element disposed in duct allowing gases to pass but not electrolyte, the filtering element having porous substrate covered by membrane

Country Status (1)

Country Link
IT (1) IT1293429B1 (en)

Also Published As

Publication number Publication date
ITTO970614A1 (en) 1999-01-10

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Legal Events

Date Code Title Description
0001 Granted