# US 8,783,188 B1 · Inflator > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,783,188 B1 - Document ID: US8783188B1 - Status: Granted - Kind: B1 - Application number: 13/174,769 - Filed: 2011-06-30 - Granted: 2014-07-22 - Earliest claimed: 2010-06-30 - Assignees: TK Holdings Inc. - Applicants: Brian A. Mayville; Deborah L. Hordos; Scott M. Rambow - Inventors: Brian A. Mayville; Deborah L. Hordos; Scott M. Rambow - Web page: https://patentgrep.com/patent/US8783188B1 ## CPC - B60R 21/26: characterised by the inflation fluid source or means to control inflation fluid flow {(arrangement or mounting thereof to the vehicle B60R21/20; blasting cartridges for producing gas under pressure in general F42B3/04; initiators or igniters therefor F42B3/10)} - B60R 21/264: using instantaneous generation of gas, e.g. pyrotechnic (B60R21/268 takes precedence) - B60R 21/2644: {using only solid reacting substances, e.g. pellets, powder} - B60R 22/1954: {characterised by fluid actuators, e.g. pyrotechnic gas generators (actuating a cable B60R22/1952)} - C06D 5/06: by reaction of two or more solids - F42B 3/04: for producing gas under pressure {(generators of inflation fluid especially adapted for vehicle air bags B60R21/26)} - B60R 2021/2648: {comprising a plurality of combustion chambers or sub-chambers} - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR - C06D: MEANS FOR GENERATING SMOKE OR MIST; GAS-ATTACK COMPOSITIONS; GENERATION OF GAS FOR BLASTING OR PROPULSION (CHEMICAL PART) (fuels C10) - F42B: EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION (explosive compositions C06B; fuzes F42C; blasting F42D) ## Abstract An inflator containing a housing having a first end and a second end is provided. An igniter is fixed within the first end of the housing for ignition of gas generant charges within the housing. A discrete fuel charge and a discrete oxidizer charge ignitably communicates with the igniter. The fuel charge and the oxidizer charge may be axially aligned and are substantially simultaneously combusted upon actuation of the inflator. ## Claims ### Claim 1 An inflator comprising: a housing having a first end and a second end; an igniter fixed within the first end of the housing; a charge of solid fuel in ignitable communication with said igniter; and a charge of solid oxidizer in ignitable communication with said igniter, and discrete and separate from and in combustible communication with said fuel charge, wherein said solid fuel charge is positioned in a juxtaposed position relative to said solid oxidizer charge, and only one surface of said solid fuel charge is juxtaposed to said solid oxidizer charge. ### Claim 2 (depends on 1) The inflator of claim 1 wherein said inflator further comprises an annular radial filter contained within said housing for filtering of gases produced upon actuation of said inflator. ### Claim 3 (depends on 1) The inflator of claim 1 wherein said inflator further comprises a filter in axial alignment with said fuel charge and said oxidizer charge. ### Claim 4 (depends on 1) The inflator of claim 1 wherein said housing is perforated. ### Claim 5 (depends on 1) The inflator of claim 1 wherein said housing further contains a nozzle at said second end, for egress of gases produced upon actuation of said inflator. ### Claim 6 (depends on 1) The inflator of claim 1 further comprising a booster chamber containing a booster charge, said booster chamber is positioned proximate to said igniter. ### Claim 7 (depends on 1) The inflator of claim 1 wherein said booster charge contains a granulated oxidizer and a granulated fuel. ### Claim 8 (depends on 1) The inflator of claim 1 further comprising a permeable member physically separating the fuel charge and the oxidizer charge. ### Claim 9 (depends on 1) The inflator of claim 1 wherein the fuel charge comprises at least one wafer. ### Claim 10 (depends on 1) The inflator of claim 1 wherein the fuel charge comprises a plurality of wafers. ### Claim 11 (depends on 1) The inflator of claim 1 wherein the oxidizer charge comprises at least one wafer. ### Claim 12 (depends on 1) The inflator of claim 1 wherein the oxidizer charge comprises a plurality of wafers. ### Claim 13 An inflator comprising: a housing having a first end and a second end; an igniter fixed within the first end of the housing; a plurality of solid fuel forms juxtaposed to each other in ignitable communication with said igniter; and a plurality of solid oxidizer forms juxtaposed to each other in ignitable communication with said igniter, and discrete, separate from, and in combustible communication with said plurality of solid fuel forms. ### Claim 14 (depends on 13) The inflator of claim 13 further comprising a booster composition juxtaposed next to said igniter. ### Claim 15 (depends on 13) The inflator of claim 13 wherein said plurality of solid fuel forms are shaped as annular wafers. ### Claim 16 (depends on 13) The inflator of claim 13 wherein said plurality of solid oxidizer forms are shaped as annular wafers. ### Claim 17 An inflator comprising: a housing having a first end and a second end; a combustion chamber, an igniter fixed within the first end of the housing; a plurality of solid fuel forms contained within said combustion chamber and in ignitable communication with said igniter; and a plurality of solid oxidizer forms contained within said combustion chamber and in ignitable communication with said igniter, wherein said combustion chamber is divided to physically separate said plurality of solid fuel forms from said plurality of said solid oxidizer forms.