...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7981534 | Rechargeable battery with flexibly connected vent plugs A rechargeable battery includes a housing, a plurality of cells within the housing, and a cover which closes the housing. The battery also includes a plurality of filling openings arranged in the cover separated from one another by a distance and a plurality of plug... | 07/19/2011 |
| 7851079 | Battery pack and portable electronic device The present invention includes a plurality of battery cells, each provided with a gas discharge valve. A housing accommodates the battery cells and has a gas opening. The housing does not melt at an inside temperature of the battery pack increased by gas discharged ... | 12/14/2010 |
| 7381494 | Electric battery assembly and method of manufacture An energy storage device, such as an electrical storage battery, having a unique terminal structure, sealing arrangement and an S-shaped mandrel for the electrode assembly. The battery generally includes a case in which an electrode assembly is dispose, and a cover ... | 06/03/2008 |
| 7316861 | Battery holding frame, in particular for an electrically driven sweeping machine A battery holding frame is provided for an electrically driven sweeping machine having one lower supporting face (4) for the battery (10), and lateral faces (5) to contain the same battery (10), which include a mobile lateral face (5 | 01/08/2008 |
| 7258949 | Bipolar battery and a method for manufacturing a bipolar battery The present invention relates to a bipolar battery, especially a NiMH battery, having: a sealed housing, a negative end terminal, a positive end terminal, and at least one biplate assembly comprising a biplate, a positive and a negative electrode. A separator is arr... | 08/21/2007 |
| 7195839 | Battery cell with improved pressure relief vent An electrochemical cell with a pressure relief vent formed in a metal plate disposed in at least one of the closed end and the open end of the container. The pressure relief vent has an annular ring that includes a reduced thickness groove, interrupted in at least t... | 03/27/2007 |
| 7101640 | Screw-in vent plug for lead-acid batteries A venting plug for a wet, lead-acid storage battery, a battery containing the same, a method of molding the venting plug body, and a mold for molding the venting plug body are disclosed. The sealing surfaces of the venting plug do not include a mold parting line alo... | 09/05/2006 |
| 7094495 | Alkaline cell with flat housing An alkaline cell having a flat housing, preferably of cuboid shape. The cell can have an anode comprising zinc and a cathode comprising MnO2. The housing can have a relatively small overall thickness, typically between about 5 and 10 mm. Cell contents can... | 08/22/2006 |
| 6890681 | Leak resistant automotive battery A leak resistant automotive battery comprising a housing containing cells having filling plugs; a battery cover sealed to an opened top end of the housing and having filling holes overlying the respective cells; at least one partition wall provided in the battery co... | 05/10/2005 |
| 6887615 | Microvalve for controlling fluid flow A microvalve (10) for controlling fluid flow, including a body portion (14) having at least one opening (18) formed therein, a shutter (12) located adjacent to and substantially parallel with the body portion, and a drive mechanism (20... | 05/03/2005 |
| 6844106 | Electrochemical cell with reduced height fillport An electrochemical cell including a cell enclosure, a fill tube, a ball, a closing button, an anode, a cathode, and an electrolyte. The cell enclosure defines an internal volume and includes a cover forming a fillport through hole. The fill tube is separately formed... | 01/18/2005 |
| 6838207 | Sealed battery with less electrolyte leakage The object of the present invention is to provide a sealed battery that includes a gas release valve formed on the closure cap by covering a gas release hole with a thin film that rarely breaks even if the battery is dropped. For this object, the external casing of ... | 01/04/2005 |
| 6763591 | Watertight housing of an apparatus The invention relates to a waterproof housing (1) of an apparatus, for example an electrically rechargeable shaving device, which housing (1) is provided with at least one opening (3a,3b) in a wall (1a), which ... | 07/20/2004 |
| 6756151 | Unidirectional draining device A draining device including a threaded portion, the threaded portion depending outwardly from an annular portion and having an inner opening in fluid communication with a pair of openings in the annular portion, where said pair of openings provides a pathway for dra... | 06/29/2004 |
| 6746795 | Lead-acid safety battery cap A battery cap is provided for engagement in a fill port of a cell of a deep cycle, lead-acid electrical storage battery. The battery cap is formed of a hollow, tubular body having an upper end with an expansive mouth opening, and a lower end at which a transverse fl... | 06/08/2004 |
| 6723465 | Nonaqueous electrolyte battery and production method thereof A nonaqueous electrolyte batter includes: an electrode body having at least a positive electrode and a negative electrode; a cylindrical container with its bottom closed, in which the electrode body and a nonaqueous electrolytic solution are contained; and a lid bod... | 04/20/2004 |
| 6682846 | Charging element device and holding structure therefor A charging element device comprises a positive electrode terminal and a negative electrode terminal which are located at one end of a cylindrical battery case having a positive electrode and a negative electrode equipped therein and which are respectively... | 01/27/2004 |
| 6677075 | Plug arrangement for a cell vent of a storage battery The invention concerns a plug arrangement for gas-tight closure of a cell vent of a storage battery. To provide a plug arrangement that to the greatest possible extent prevents acid from running out when a storage battery is tipped or turned and at the sa... | 01/13/2004 |
| 6472096 | Secondary battery A secondary battery includes a can into which an electrode assembly is inserted, a cap assembly mounted to an opening of the can; and an electolyte injection hole formed on at least one of the can and cap assembly, and safety member to close the electolyt... | 10/29/2002 |
| 6432573 | Battery plug with collecting element for condensed gases The invention relates to a battery plug for closing battery cells. The plug is formed of an essentially cylindrical housing which is open at the bottom and which can be inserted into the opening of the cell. The housing has an upper opening which can be c... | 08/13/2002 |
| 6376119 | Plug system for capping cell vents in a storage battery and a battery cap for use in the plug system This invention concerns a plug system for capping cell vents (26, 27) of a storage battery, consisting of a plug body (1) that can be inserted in a cell vent (26, 27), holding a plug (2) and a valve element (3), thus providing a normally closed fluidic co... | 04/23/2002 |
| 6326100 | Cylindrical secondary battery A cylindrical secondary battery includes a case, a cathode plate and an anode plate installed in the case, and a separator interposed therebetween, a cap on the case and a cap cover coupled to the cap and having a vent hole, and a one-way valve installed ... | 12/04/2001 |
| 6277517 | Electrolyte baffling plug A battery of the type having electrolyte therein, comprising a case defining at least one electrolyte containing cell, and a primary cover bonded to the case. The primary cover has a barrel extending into the electrolyte cell. A secondary cover is bonded ... | 08/21/2001 |
| 6261719 | Battery-connecting plate A battery-connecting plate for connecting batteries in series. The batteries, each with a positive and a negative electrodes at opposite ends, are assembled in a row with the positive and negative electrodes reversed in an alternating manner. The battery-... | 07/17/2001 |
| 6255013 | Sealed storage battery and method of producing same A sealed storage battery includes a battery case containing a group of electric power-generating elements each comprising a positive electrode, a negative electrode and a separator, a battery case lid closing an opening in the battery case to seal the bat... | 07/03/2001 |
| 6254841 | Recombination system for the catalytic recombination of hydrogen and oxygen, forming in storage batteries, into water For an improved recombination system serving to catalytically recombine hydrogen and oxygen, which form in a storage battery, into water and incorporating an adapter union assembly for the gas-tight connection of the system to a storage battery, a contain... | 07/03/2001 |
| 6235419 | Sealed storage battery A sealed storage battery includes a battery case containing a group of electric power-generating elements each comprising a positive electrode, a negative electrode and a separator, a battery case lid closing an opening in the battery case to seal the bat... | 05/22/2001 |
| 6203937 | Hermetic closure seal A closed container is filled through a metal fill port which is then sealed with a rigid metal ball press fitted into the port passageway.... | 03/20/2001 |
| 6146784 | Vent plug having an integal seal The present invention provides for a wet, multicell, lead-acid electric storage battery comprising a venting system having vent plugs comprising an inventive sealing arrangement. Specifically, the vent plugs provide a seal to be molded onto the vent body ... | 11/14/2000 |
| 6147298 | Breather assembly for electrical enclosures A breather assembly having an outer housing, an insert in the upper portion of the housing, a porous metal disc adjacent the insert, a plurality of glass beads adjacent the disc, a spacer cup adjacent the beads and a washer acting as a plug adjacent the s... | 11/14/2000 |
| 6068945 | Battery A battery has a battery case, a cover (1), cells located in the case and at least one opening (2) for venting of the gases occurring in the cells, into which a flashback protection frit (3) is inserted. To improve such a battery, a baffle wall (12) is pla... | 05/30/2000 |
| 5993991 | Battery vent plug improvement A vent plug for insertion into a battery vent well that retains the original large diameter of the well. The vent plug has a body having a top and a bottom and an opening extending from the top to the bottom. A neck extends from the body for insertion int... | 11/30/1999 |
| 5942351 | Moisture-proof housing for containing an electric accumulator A moisture-proof housing is disclosed intended for containing a battery. The housing includes two walls or plates which are kept in place by a sealing band located therebetween which defines interior of the housing. Portions of the walls, namely wall or p... | 08/24/1999 |
| 5846671 | Lid for batteries The invention discloses a lid suited to be used on batteries of the "re-combination" type or of the "KAMINA" type realized with a single manufactured article moulded of plastic material. The manufactured article presents an essentially flat surface (6), a... | 12/08/1998 |
| 5707757 | Battery having water-proof case and portable electronic apparatus using the battery Disclosed is a water-proof, gas pervious casing for a battery capable of containing a plurality of battery cells. The casing is made of a gas impervious, water-proof material that completely encapsulates the battery cells. A recessed region in the casing ... | 01/13/1998 |
| 5702840 | Vent cap for a lithium battery A vent cap for a lithium battery which includes an electrolyte which is in electrical contact with an anode of lithium or lithium alloy and a cathode containing at least one metallic salt is disclosed. The vent cap is shaped in a hat shape and includes a ... | 12/30/1997 |
| 5693430 | Nonaqueous electrolytic secondary battery A nonaqueous electrolytic secondary battery has a seal whose transparency and permeability with respect to external gas or moisture can be suppressed to a low level and which has high reliability. The nonaqueous electrolytic secondary battery has an elect... | 12/02/1997 |
| 5688612 | Battery cover and vent cap interface seal A battery cover and vent cap interface seal for electrical storage batteries is disposed between the vent opening in the battery cover and the vent cap to establish a fluid-fight seal. In a first embodiment an annular sealing member is provided in each ve... | 11/18/1997 |
| 5663010 | Device to exhaust the fumes produced inside accumulator batteries The invention discloses an improved breathing device to exhaust on the outside the fumes produced inside the accumulator batteries. It comprises: at least one chamber (7) realized in the lid (2) of the accumulator battery and communicating on one side wit... | 09/02/1997 |
| 5660946 | Sealed lead-acid cells and batteries having an expandable cover Sealed lead-acid cells and batteries include an expandable cover capable of accommodating the grid growth which occurs in service, the expandable cover comprises a first region which expands outwardly toward a second region and a flange which defines the ... | 08/26/1997 |