U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5508049

Pizza Pie With Concentric Rings of Crust

A pizza mold for forming a plurality of concentric raised ridges of dough (i.e., crust) on the surface of a pizza pie.

Newsletter  PatentStorm News

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.

 

Class 429/86 - Reactive, absorbable or diffusive type


Subclass of Class 429 - Chemistry: electrical current producing apparatus, product, and process
Definition: Apparatus wherein the vent contains structure or materials
No. of patents: 108
Last issue date: 05/31/2011


1      
NumberTitleIssue Date
7951475Vent valve for acid batteries
The present invention concerns a vent valve for acid batteries comprising a substantially cylindrical plug portion (28) which is designed for being brought into engagement with a cell opening of the acid battery (1) and which has at least one passage o...
05/31/2011
7326489Catalyst design for VRLA batteries
A catalyst device for use with battery cells to recombine oxygen and hydrogen gas and thereby improve the performance and life of such cells. The catalyst device has the ability to filter out catalyst poisons and control the temperature of the recombination reaction...
02/05/2008
7294209Apparatus and method for depositing material onto a substrate using a roll-to-roll mask
A battery-operated device provided on a thin-film battery and a method for making. Some embodiments provide a system that includes a vacuum chamber, a plurality of pairs of source and take-up reels within the vacuum chamber, including a first source reel that suppli...
11/13/2007
7273675Aqueus electrolytic solution primary battery
The invention provides a battery including a power generating element container, a positive electrode mixture, and a hydrogen gas permeable sheet provided in an opening of the power generating element container, the hydrogen gas permeable sheet having a water repell...
09/25/2007
7267847Hydrophobic coating of individual components of hearing aid devices
For the liquid impervious sealing of smallest crevices, chinks, capillaries and/or openings within a housing wall, in particular of electronic or electrical devices, it is proposed to provide the housing wall at least in the area of the crevices, chinks, openings or...
09/11/2007
7244528Aluminum negative electrode battery
Disclosed is an aluminum negative electrode battery comprising a closed space provided by at least one member including a hydrogen gas permeating member that contains an organic material having a He gas permeability of 2×10−10 (cm3(STP)cm/se...
07/17/2007
7228875Seal and bleed valve unit for electric batteries
Sealing and breathing valve assembly for accumulators comprising: at least one substantially tubular collar associated to the cover of said accumulator and suitable for connecting the external environment with one or more breathing ducts made in said cover; an elast...
06/12/2007
7194801Thin-film battery having ultra-thin electrolyte and associated method
A method and system for fabricating solid-state energy-storage devices including fabrication films for devices without an anneal step. A film of an energy-storage device is fabricated by depositing a first material layer to a location on a substrate. Energy is suppl...
03/27/2007
7138458Method for preparing a two-phase water-absorbent bioadhesive composition
A method is provided for preparing an adhesive composition that contains both a hydrophobic phase and a hydrophilic phase, wherein the hydrophobic phase is composed of a crosslinked hydrophobic polymer composition and the hydrophilic phase is a water-absorbent blend...
11/21/2006
7131189Continuous processing of thin-film batteries and like devices
A system for making a thin-film device includes a substrate-supply station that supplies a substrate having a major surface area. The substrate has a first layer on a first surface area of the substrate's major surface area. Also included is a device for depositing ...
11/07/2006
7101640Screw-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
7091250Additive for producing a positive active material for lead-acid storage batteries, a method for its production and a method for its use
The present invention is an additive for producing a positive active material for lead-acid storage batteries on the basis of finely divided tetrabasic lead sulfate. The additive contains a tetrabasic lead sulfate of an average particle size less than about 3 μm as...
08/15/2006
7056617Batteries and battery systems
A non-hermetically sealed, electrochemical power source, includes a first electrode, a second electrode, a separator between the first electrode and the second electrode, and a membrane in fluid communication with an environment external to the battery. The second e...
06/06/2006
7040580Automatic activation device for deploying a parachute and methods thereof
Methods, systems, and computer program products for an automatic activation device for deploying a parachute are disclosed. The methods and systems include protecting the device from damage from a liquid and may include a filter configured to allow airflow to pass t...
05/09/2006
7029786Single point watering apparatus for lead-acid battery
The present invention is directed to a single point watering system for use with a lead-acid battery having a plurality of battery cell access ports. The system comprises a plurality of refill valves and a plurality of refill valves and a manifold having (i) a water...
04/18/2006
6966443Paraffin filter element
A paraffin filter for a paraffin spa includes a first end cap and a second end cap with a filter medium sandwiched therebetween. Each end cap is disk-like body having a respective tubular connection for the input or output of melted paraffin, thus providing a low pr...
11/22/2005
6962613Low-temperature fabrication of thin-film energy-storage devices
A method and system for fabricating solid-state energy-storage devices including fabrication films for devices without an anneal step, especially a cathode anneal of thin-film batteries. A film of an energy-storage device is fabricated by depositing a first material...
11/08/2005
6953492Membrane technology to reduce nitrogen in natural gas
An apparatus and process for providing purified natural gas wherein a natural gas feed mixture of hydrocarbons, nitrogen, and other permeable gases is provided to a semi-permeable membrane separator having a relatively higher selectivity for methane and other hydroc...
10/11/2005
6949310Leak proof pressure relief valve for secondary batteries
Secondary batteries are subjected to power cycling, and those which have a liquid electrolyte within the interior volume are equipped with a pressure relief valve. A void space over the liquid electrolyte may be subjected to gas pressure variations with respect to t...
09/27/2005
6949311Battery structure
The invention discloses a battery structure formed by the steps of: securing and adhering upper and lower plastic casings; sealing lithium cell raw material using plastic; connecting a contact of the lithium cell raw material to an metal contact of the embedded plas...
09/27/2005
6924164Method of continuous processing of thin-film batteries and like devices
A method of making a thin-film device including a substrate-supply station that supplies a substrate. The substrate has a first layer on the substrate. Also described is a method and device for depositing a second layer onto the first layer, wherein energy supplied ...
08/02/2005
6906436Solid state activity-activated battery device and method
A system includes a thin-film battery and an activity-activated switch. The system is placed on a substrate with an adhesive backing. In some embodiments, the substrate is flexible. Also formed on the substrate is an electrical circuit that includes electronics. The...
06/14/2005
6881513Leak retardant automotive battery
A leak retardant automotive battery includes a housing containing a plurality of cells that each have a filling plug and a battery cover closing the housing above the cells. The battery cover includes a central blockage that divides the housing into two compartments...
04/19/2005
6879855Zinc air battery and its uses
The invention is a method for increasing the airflow to a zinc-air battery such that the energy density is 500 mwh/cc to 1000 mwh/cc. This allows 8 to 16 hours use as a primary (throw-away) battery, with, for example, high-duty cycle, high-drain cochlear implants, a...
04/12/2005
6756151Unidirectional 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
6746795Lead-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
6660425Catalyst design for VRLA batteries
A catalyst device for use-with battery cells to recombine oxygen and hydrogen gas and thereby improve the performance and life of such cells. The catalyst device has the ability to filter out catalyst poisons and control the temperature of the recombinati...
12/09/2003
6562517Lead-acid battery vent valve-catalyst carrier assembly
A recombinant lead-acid battery, and method for operating thereof, are provided wherein the battery includes a case with a a plurality of lead-acid cells therewithin. The cells are in vapor communication one with another, and in vapor communication with d...
05/13/2003
6541151Battery assembly system used for electric vehicle
A battery assembly system used for an electric vehicle having a configuration in which electrolyte is not released from an exhaust passage even if the electrolyte is released in a mist state from a cell. A battery assembly case is provided behind a rear s...
04/01/2003
6376119Plug 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
6368741Stopper plug for storage batteries
A plug for batteries, especially for lead storage batteries is described in which gas exchange occurs through a liquid-impermeable and gas-permeable element (2) and in which an aerosol separator (3) is arranged between the element (2) and the gas space ab...
04/09/2002
6254841Recombination 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
6110617Flooded lead acid battery with roll-over capability
A flooded lead acid battery includes a casing enclosing a plurality of cells having liquid electrolyte therein and a cover incorporating negative and positive terminals and having a plurality of vent holes. The vent holes are covered by at least one closu...
08/29/2000
6068945Battery
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
5985475Membrane for selective transport of oxygen over water vapor and metal-air electrochemical cell including said membrane
A permeable membrane comprising a gas permeable substrate film and a layer of a polymeric perfluoro compound on the substrate exhibits selective transport of oxygen over water vapor and a metal-air electrochemical cell comprising such a membrane has enhan...
11/16/1999
5795667Metal-air cathode can, and electrochemical cell made therewith
This invention pertains to metal-air electrochemical cells wherein one or more air entry ports is located in the bottom of the cathode can, to provide for entry of oxygen-rich air into the cathode can, where the oxygen participates in the chemical reactio...
08/18/1998
5707757Battery 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
5663010Device 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
5565282Battery gang vent system
A multiple vent plug assembly for vent ports of an electrical storage battery, the assembly includes a gang vent insert having a base wall and an upstanding peripheral rim defining a pair of side walls and a pair of end walls; an overcap including an inne...
10/15/1996
5561001Accumulator with degassing channel
The cover (11) of an accumulator has a degassing channel (12) which connects the interior space (36) of one or more cells, with a side channel (14) formed in a side wall (13) of the cover (11). The side channel (14) is sealingly closed by a cover plate (1...
10/01/1996
1      
 
Sign InRegister
Username  
Password   
forgot password?