US3795963A - Apparatus for use in the manufacture of electric storage batteries - Google Patents

Apparatus for use in the manufacture of electric storage batteries Download PDF

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Publication number
US3795963A
US3795963A US3795963DA US3795963A US 3795963 A US3795963 A US 3795963A US 3795963D A US3795963D A US 3795963DA US 3795963 A US3795963 A US 3795963A
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US
United States
Prior art keywords
lid
heater
battery box
box
wall
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
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English (en)
Inventor
K Sturmey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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Filing date
Publication date
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Publication of US3795963A publication Critical patent/US3795963A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2053—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position
    • B29C65/2061—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position by sliding
    • B29C65/2069—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position by sliding with an angle with respect to the plane comprising the parts to be joined
    • B29C65/2076—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position by sliding with an angle with respect to the plane comprising the parts to be joined perpendicularly to the plane comprising the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
    • H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7146—Battery-cases
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/53135—Storage cell or battery
    • Y10T29/53139—Storage cell or battery including deforming means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53443—Means to assemble or disassemble container and fluid component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53539—Means to assemble or disassemble including work conveyor
    • Y10T29/53543—Means to assemble or disassemble including work conveyor including transporting track

Definitions

  • An apparatus for welding a battery box lid to a battery box employing a heater for melting portions of the lid between the filling tubes and around the lid.
  • the heater is provided with bores receiving the filling tubes, the bores being substantially larger than the filling tubes and being undercut from the surface of the heater so that the filling tubes are not melted when the portions of the 'lid adjacent the filling tubes are melted.
  • Apparatus includes a heater for melting the surface of a portion around a battery box lid to facilitate welding of the lid to a battery box, the heater being formed with a plurality of bores in which respective filling tubes extending from the lid are received when the lid engages the heater, said filling tubes providing access to the cell compartments respectively of the finished battery for the insertion of electrolyte, the dimensions of each'of said bores being substantially greater than the dimensions of its respective filling tube and part of the wall of each pore being undercut to the rear of the surface of the heater engaging said shoulder in use, the arrangement being such than when the lid engages the heater to melt said shoulder a portion of the lid adjacent each filling tube is engaged by said surface of the heater adjacent the undercut part of a respective bore and is melted thereby whereas each filling tube is spaced froom the wall of its respective bore and so remains unmelted.
  • each undercut wall on the said surface of the heater is adapted to engage one of said portions of the lid which are each defined by an integral rib adapted to engage and seal with a cell partition wall in the battery box.
  • apparatus is adapted for use on a recessed lid and the heater is undercut to the rear of the surface of the heater which, in use, engages said portion around the lid so that a peripheral wall of the lid is not melted by the heater.
  • FIG. 1 illustrates a pack of battery plates and separators
  • FIG. 2 shows a battery box with all but one of the packs in position
  • FIG. 3 is a part sectional view of the battery box illustrating the completion of the intercell connections
  • FIG. 4 is an inverted plan view of the battery lid
  • FIG. 5 is a sectional view along line A-A in FIG. 4,
  • FIG. 6 is a partly diagrammatic side elevational view illustrating a machine used to connect the lid to the battery box
  • FIG. 7 is a plan view of part of the heater of the machine shown in FIG. 6,
  • FIG. 8 is a side elevational view of part of the heater shown in FIG. 6,
  • FIG. 9 is a diagrammatic representation of the operation of the machine shown in FIG. 6, and
  • FIG. 10 is a side elevational view of part of the heater shown in FIG. 6 and also is a sectional view of the battery lid taken along the line B--B in FIG. 4 when the lid is partly engaged with the heater.
  • a battery box 11 is moulded from polypropylene or other suitable thermoplastics material, the box including partition walls 12 dividing the box into six compartments. Each compartment receives a preformed pack 13 of positive and negative battery plates and separators.
  • the two sets of plates in each of the four packs, which are to be mounted in the central compartments of the box 11 are connected respectively to conductive connecting lugs 15, 16 formed with extensions which, in use, extend substantially parallel to the partition walls 12.
  • the extensions on the lugs 15 and 16 are each formed on their surfaces to be presented to the partition walls 12 with an upstanding annular rib 10 and each of the extensions on the lugs 16 is further formed on its surface to be presented to the respective partition wall with an outwardly extending spigot 164 (FIG. 3).
  • the partition walls 12 have holes stamped therein, and the arrangement is such that when the packs are positioned in the box 11, each spigot 16a passes through a hole in a respective partition wall and engages the lug 15 on a pack in the adjacent cell, the ribs 10 on each spigot 16a and each lug l5 surrounding the hole in the respective wall.
  • the walls 12 are of course arranged to be sufficiently flexible to permit introduction of the packs into the compartments before the spigots 16a enter their respective holes. When all the packs are in position the required intercell connections are completed using a tool 18, as shown in FIG. 3.
  • This tool includes a pair of electrodes 21, 22 which engage corresponding lugs 15, 16 respectively, and simultaneously exert pressure and pass current between the lugs 15, 16 so that the spigot 16a of each lug 16 becomes welded to the respective lug 15, and the hole in the respective partition wall 12 is sealed. When all the intercell connections are made the battery is complete apart from the lid.
  • adjacent its closed end the longer walls of the box 11 are formed with respective recesses 24, clamping means (not shown) engaging the recesses 24, in use, and serving to mount the battery in position on a vehicle.
  • the lid 25 (FIGS. 4 and 5) is also moulded in polypropylene, or other suitable thermoplastics material,
  • the lid 7 includes a peripheral'wall 26 which extends generally at right angles to the plane of the lid 25, and an internal peripheral shoulder 27 which is engaged by the free end of the wall of the box 11 when the lid 25 is in place closing the box 11.
  • the lid is formed with partition walls 28, which, when the lid is in position on the box 11, engage the free edges of the partition walls 12 of the box 11, the walls 28 of the lid being thicker than the walls 12 of the box 11, to ensure that facial contact occurs between the free edges of the walls 12 and the walls 28.
  • the lid 25 includes six, integral filling tubes 29, each of which has associated therewith avent passage 31, each tube 29 and respective vent passage 31 being associated with a respective cell of the battery when the lid 25 is in position on the box 11.
  • the lid 25 will have associated therewith, a manifold assembly, which is movable relative to the lid 25 between a first position wherein the vents 31 are open, and a second position wherein the vents 31 are closed.
  • the vents 31 and the tubes 29 open into a common channel 32 in the lid 25, the channel 32 and the manifold assembly (not shown) facilitating simultaneous filling of the six cells of the battery to the desired level with electrolyte.
  • the lid 25 further includes a pair of integral hollow spigots 33 which receive lead inserts for the terminal posts 17 respectively.
  • the lid 25 includes a pair of integral guide pegs 30 which project from the lower surface of the lid 25 and present to the peripheral wall 26 an inclined surface extending from the wall 26.
  • the pegs 30 guide the lid into the correct longitudinal position relative to the box 1 1. Further guide pegs 30 are also provided on the partition walls 28 of the lid, the further guide pegs being provided on each partition wall 28 and serving to guide the walls 28 into engagement with their respective walls 12 when the lid is positioned on the box 11.
  • the lid 25 is welded to the box 11, and for this purpose the machine shown in FIG. 6 is used.
  • the machine comprises a frame having a base 34, a pair of pedestals 35, and an arm 36, which extends at right angles to the pedestals 35, and which overlies the base 34.
  • a first die part 37 is slidably mounted on the arm 36, for vertical movement relative to the arm 36.
  • the die part 37 is carried on a pair of guide rods, one of which is shown at 38, and is moved vertically relative to the arm 36 by means ofa pneumatic or hydrualic ram 39.
  • a conveyor extends over the base 34, and the base 34 includes a platform 41 which is movable vertically, upwardly relative to the base 34, from a position wherein the platform is slightly below the plane of the conveyor.
  • the die part 37 supports a battery lid 25 and the platform 41 carries a battery box 11 which is to have the lid 25 welded thereto.
  • the pedestals 35 support a pair of guideways, one of which is shown at 42, the guideways 42 extending parallel with the arms 36 and the base 34.
  • a heater assembly 43 Slidably mounted in the guideways 42 and movable along the guideways 42 by means of a pneumatic ram (not shown) is a heater assembly 43 (FIGS.
  • the heater assembly 43 includes a main body 44 carrying rollers (not shown) by means of which the heater assembly is slidably mounted in the guideways 42.
  • the body 44 is also formed with passages within which electric heating elements are received.
  • a first aluminium alloy plate 45 Secured to the face of the body 44, which is presented to the base 34, is a first aluminium alloy plate 45, and secured to the face of the body 44 presented to the arm 36 is a second aluminium alloy plate 46.
  • the plate 46 is substantially the same size as the internal dimensions of the battery lid 25, but the periphery 47 of the plate 46 is undercutto the rear of the surface of the plate 46 to be presented tothe lid 25.
  • the periphery 47 of the plate 46 defines first and second surfaces 47a, 47b respectively, the first surface 47a extending at right angles to the surface of the plate 46 to be presented to the lid and the second surface 47b extending from the surface 47a to the surface of the plate 46 adjacent the body 44 and being inclined inwardly with respect to the first surface 47a so as to define the undercut feature of the plate 46.
  • the plate 46 is provided with first and second sets of bores 48, 49 respectively arranged so that when the lid 25 is engaged with the heater assembly 43 the filling tubes 29 are received in the bores 48 respectively and the guide pegs and the terminal spigots 33 are received in the bores 49 respectively.
  • the aluminium alloy used in the heater assembly 43 has the following composition: 3.5 4 percent copper, 0.4 0.7 percent magnesium, 0.4 0.7 percent maganese, and up to 0.7 percent silicon, the remainder being aluminium.
  • a series of boxes containing their respective interconnected packs 13, and having respective lids 25 placed thereon are fed onto the conveyor, and are carried by the conveyor between guiderails 53 singly over the platform 41.
  • a box 11 reaches the platform41 it engages a stop 52 supported by the pedestals 35, and in so doing operates a micro-switch which starts a cam control system.
  • the cam control system firstly causes the platform 41 to be raised through the moving conveyor, thereby supporting and locating the box 11.
  • Mechanical means (not shown) is now actuated to hold the box 11 firmly in position on the platform 41 for the remainder of the operation.
  • the cam control system then causes the die part 37 to be lowered, until the die part 37 engages the lid 26 which is resting on top of the box 11'.
  • the platform 41 is raised so that the free edge of the wall of the box 11 and the free edges of the partition walls 12 of the box 11 engage the plate 45 of the heater assembly 43.
  • the box 11 and the lid 25 are then maintained in engagement with the heater for a further three seconds, so that the free edges of the wall of the box 11 and the partition walls12 are heated for three seconds, while the shoulder 27'and the free edges of the partition walls 28 are heated for a total of four seconds.
  • the box 11 and the lid 25 are pressed lightly into contact with the heater assembly 43, and it will be appreciated that since the plate 46 is undercut at 47 (FIG. 8), then the wall 26 of the lid 25, will not be heated.
  • the die part 37 and the platform 41 are then returned to their previous positions and the heater assembly 43 is retracted from between the lid 25 and the box 11.
  • the platform 41 and the die part 37 are moved towards one another-to engage the lid 25 with the box 11.
  • the time between the lid 25 and the box 11 leaving contact with the heater assembly 43 and contacting each other is approximately one and half seconds.
  • the lid is then pressed firmly into contact with the box 11 for 4 seconds, during which time the areas of the box 11, and the lid 25, which were melted by contact with the heater assembly 43, merge together to seal the lid onto the box.
  • the lid After the lid has been held in contact with the box for 4 seconds, the lid is released from the die part 37, and the platform 41 islowered, so that the box l 1, together with the lid 25, which is welded thereto are returned to the conveyor, and are replaced by a further box 11, which is to have its respective lid welded to it.
  • the die part 37 is returned to its original position in readiness for a further cycle. The overall cycle of the machine takes 12 seconds.
  • the apparatus described above is particularly designed for use with small battery boxes, that is boxes whose length is in the region of 170 mm. or less, the lids 25 being of course of a correspondingly small size.
  • the partition walls 28 of the lid are required to be melted by the heater plate 46 since in the finished battery the partition walls 28 are welded to the free edges of the partition walls 12 of the box 11.
  • the first set of bores 48 in which the filling tubes 29 respectively are received are arranged to be substantially larger than their respective filling tubes and further are arranged so that a part of the wall of each bore 48 is undercut to the rear of the surface of the plate 46 engaging the lid 25 in use. Then as shown in FIG.
  • each of the partition walls 28 is engaged by a portion of the surface of the plate 46 adjacent the undercut part of a respective bore 51 so as to be melted by the plate 46, but each filling tube 29 is arranged in its respective bore 48 so as to be spaced from the wall of its respective bore 48, whereby the filling tubes 29 remain unmelted during the engagement of the lid 25 with the heater assembly 43.
  • Apparatus for use in the manufacture of electric storage batteries including a heater for melting the surface of a portion around a battery box lid to facilitate welding of the lid to a battery box, the heater being formed with a plurality of bores in which respective filling tubes extending from the lid are received when the than the dimensions of its respective filling tube and part of the wall of each bore being undercut to the rear of the surface of the heater engaging said shoulder in use, the arrangement being such that, when the lid engages the heater to melt said shoulder, a portion of the lid adjacent each filling tube is engaged by said surface of the heater adjacent the undercut part of a respective bore and is melted thereby whereas each filling tube is spaced from the wall of its respective bore and so remains unmelted.
  • each undercut wall on the said surface of the heater is adapted to engage one of said portions of the lid which are each defined by an integral rib adapted to engage and seal with a cell partition wall in the battery box.
  • aluminium alloy comprises 3.5 4 percent copper, 0.4 0.7 percent magnesium, 0 .4 0.7 percent manganese,
  • An apparatus as claimed in claim 1 further including conveyor means for transporting an unwelded assembly of battery box and lid towards a station at which said heater is located, means for gripping the lid at the station, means for supporting the battery box at the said station, means for effecting relative movement between said gripping means and supporting means so that, in use, the battery box/lid assembly is moved between a spaced apart position and an engaged position, and means for moving said heater between a position in which, in use, it is disposed between the battery box and the lid when separated and a position which allows the battery box and lid to be brought into engagement.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
US3795963D 1971-03-05 1972-02-24 Apparatus for use in the manufacture of electric storage batteries Expired - Lifetime US3795963A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB622071A GB1366651A (en) 1971-03-05 1971-03-05 Apparatus for use in the manufacture of electric storage batteries

Publications (1)

Publication Number Publication Date
US3795963A true US3795963A (en) 1974-03-12

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US3795963D Expired - Lifetime US3795963A (en) 1971-03-05 1972-02-24 Apparatus for use in the manufacture of electric storage batteries

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US (1) US3795963A (en))
JP (1) JPS4729841A (en))
DE (1) DE2210659A1 (en))
GB (1) GB1366651A (en))
SE (1) SE377533B (en))

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050139360A1 (en) * 2003-12-31 2005-06-30 Van Bilderbeek Bernard H. Externally activated seal system for wellhead
US20080017386A1 (en) * 2003-12-31 2008-01-24 Van Bilderbeek Bernard H Externally activated seal system for wellhead

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3544754A (en) * 1963-03-27 1970-12-01 Globe Union Inc Electric welder for joining battery-cell connecters through intercell walls

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3544754A (en) * 1963-03-27 1970-12-01 Globe Union Inc Electric welder for joining battery-cell connecters through intercell walls

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050139360A1 (en) * 2003-12-31 2005-06-30 Van Bilderbeek Bernard H. Externally activated seal system for wellhead
WO2005065292A3 (en) * 2003-12-31 2006-02-02 Bilderbeek Bernard Herman Van Externally activated seal system for wellhead
US7128143B2 (en) * 2003-12-31 2006-10-31 Plexus Ocean Systems Ltd. Externally activated seal system for wellhead
US20070034382A1 (en) * 2003-12-31 2007-02-15 Van Bilderbeek Bernard H Externally activated seal system for wellhead
US20080017386A1 (en) * 2003-12-31 2008-01-24 Van Bilderbeek Bernard H Externally activated seal system for wellhead
US7740061B2 (en) * 2003-12-31 2010-06-22 Plexus Ocean Systems Ltd. Externally activated seal system for wellhead

Also Published As

Publication number Publication date
DE2210659A1 (de) 1972-09-21
SE377533B (en)) 1975-07-14
GB1366651A (en) 1974-09-11
JPS4729841A (en)) 1972-11-07

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