US3640083A — Generator of cool working gases

Claim 1

Independent Claim 357 words

A cool gas generator, comprising: outer housing means; smaller diameter inner housing means inside said outer housing means; with a storage space for a liquid existing about the inner housing means, between it and the outer housing means, and a vaporizable liquid in said space; said inner housing means comprising tubular wall means defining a hot gas generation chamber and a communicating tubular outlet section extending from said chamber to an outlet opening in said outer housing means; means in said hot gas generation chamber for generating hot gases therein, for release therefrom into said outlet section; said inner housing means also including a hot gas passageway leading from the interior thereof into said storage space, for delivering a first portion of the hot gases into said space, and a liquid passageway downstream of said hot gas passageway, leading from said space into said outlet section, and conduit means leading from said outlet section to a utilization station; and the improvement comprising: the tubular wall means defining the outlet section has first and second ports therein, one of whiCh constitutes a portion of said hot gas passageway and the other of which constitutes a portion of said liquid passageway; and an elongated, replaceable control insert snugly received inside said outlet section, said insert having inlet and outlet portions, an elongated, generally axial, small diameter passageway therein, extending from said inlet portion to said outlet portion, through which a second portion of the hot gases flow, a first side port extending from said inlet portion to the hot gas passageway port in said tubular wall means, in parallel flow relationship to said generally axial passageway, a second side port extending from said outlet portion to the liquid passageway port in said tubular wall means, a first pressure-releaseable closure member spanning across and initially closing the inlet end portion at a location upstream of the entrances of both said first side port and said generally axial passageway, and a second pressure-releaseable closure member spanning across and initially closing the outlet portion, at a location downstream of the outlets of both said second side port and said generally axial passageway.

Claim 2

Dependent Claim 357 words

A cool gas generator, comprising: outer housing means; smaller diameter inner housing means inside said outer housing means; with a storage space for a liquid existing about the inner housing means, between it and the outer housing means, and a vaporizable liquid in said space; said inner housing means comprising tubular wall means defining a hot gas generation chamber and a communicating tubular outlet section extending from said chamber to an outlet opening in said outer housing means; means in said hot gas generation chamber for generating hot gases therein, for release therefrom into said outlet section; said inner housing means also including a hot gas passageway leading from the interior thereof into said storage space, for delivering a first portion of the hot gases into said space, and a liquid passageway downstream of said hot gas passageway, leading from said space into said outlet section, and conduit means leading from said outlet section to a utilization station; and the improvement comprising: the tubular wall means defining the outlet section has first and second ports therein, one of whiCh constitutes a portion of said hot gas passageway and the other of which constitutes a portion of said liquid passageway; and an elongated, replaceable control insert snugly received inside said outlet section, said insert having inlet and outlet portions, an elongated, generally axial, small diameter passageway therein, extending from said inlet portion to said outlet portion, through which a second portion of the hot gases flow, a first side port extending from said inlet portion to the hot gas passageway port in said tubular wall means, in parallel flow relationship to said generally axial passageway, a second side port extending from said outlet portion to the liquid passageway port in said tubular wall means, a first pressure-releaseable closure member spanning across and initially closing the inlet end portion at a location upstream of the entrances of both said first side port and said generally axial passageway, and a second pressure-releaseable closure member spanning across and initially closing the outlet portion, at a location downstream of the outlets of both said second side port and said generally axial passageway.

Claim 3

Dependent Claim 37 words

A cool gas generator according to claim 1, wherein said insert is accessible from the outlet opening in the outer housing, so that it can be removed and replaced by a new insert through said outlet opening.

Claim 4

Dependent Claim 42 words

A cool gas generator according to claim 1, wherein said insert includes a peripheral groove on each side of each side port and an O-ring in each groove, for sealing between the insert and the tubular wall means of the outlet section.

Claim 5

Dependent Claim 37 words

A cool gas generator according to claim 1, further including deflector means secured to the tubular wall means of the outlet section, for turning the hot gases issuing from said first port and directing them substantially axially.

Claim 6

Dependent Claim 65 words

A cool gas generator according to claim 1, wherein said insert includes a girth channel surrounding its periphery where each side side port meets the periphery, so that the side ports of the insert are always in communication with the ports in the tubular wall of the outlet section regardless of the angular relationship of the insert ports to the ports in the sidewall means.

Claim 7

Dependent Claim 69 words

A cool gas generator according to claim 1, wherein the inlet and outlet portions of said insert are larger in diameter than said generally axial passageway through the insert, said first side port has its entrance in said inlet portion, upstream of the entrance to said generally axial passageway, and the second side port discharges into said outlet portion, downstream of the discharge end of said generally axial passageway.

Claim 8

Dependent Claim 279 words

A cool gas generator, comprising: an elongated, generally cylindrical, outer sidewall member having first and second ends; an elongated, generally cylindrical, inner sidewall member having first and second ends, said member being both shorter and smaller in diameter than said outer member and being located inside said outer member; ringwall means connecting together the first ends of said sidewall members and forming a radial wall between said first ends, said ringwall means including an open center for receiving a gas generator grain cartridge assembly insertable through said center into the inner sidewall member; an outlet member having a first end connected to the second end of said inner sidewall member, said outlet member extending from said second end of the inner sidewall member through an opening in the second end of the outer side member, and having an outlet opening at its second end, with said outer sidewall member meeting said outlet member in the vicinity of said outer wall opening to form an end closure for the annular space which surrounds said inner sidewall member and the portion of the outlet member which is housed therein, said outlet member including sidewall means forming an axial chamber therein, first and second sidewall openings in said sidewall means extending between said chamber and said annular space; and an elongated, replaceable control insert snugly received inside said chamber, said insert having inlet and outlet portions, an elongated, generally axial, small diameter passageway therein, extending from said inlet portion to said outlet portion, a first side port extending from said inlet portion to the first sidewall opening and a second side port extending from said outlet portion to said second sidewall port.

Claim 9

Dependent Claim 279 words

A cool gas generator, comprising: an elongated, generally cylindrical, outer sidewall member having first and second ends; an elongated, generally cylindrical, inner sidewall member having first and second ends, said member being both shorter and smaller in diameter than said outer member and being located inside said outer member; ringwall means connecting together the first ends of said sidewall members and forming a radial wall between said first ends, said ringwall means including an open center for receiving a gas generator grain cartridge assembly insertable through said center into the inner sidewall member; an outlet member having a first end connected to the second end of said inner sidewall member, said outlet member extending from said second end of the inner sidewall member through an opening in the second end of the outer side member, and having an outlet opening at its second end, with said outer sidewall member meeting said outlet member in the vicinity of said outer wall opening to form an end closure for the annular space which surrounds said inner sidewall member and the portion of the outlet member which is housed therein, said outlet member including sidewall means forming an axial chamber therein, first and second sidewall openings in said sidewall means extending between said chamber and said annular space; and an elongated, replaceable control insert snugly received inside said chamber, said insert having inlet and outlet portions, an elongated, generally axial, small diameter passageway therein, extending from said inlet portion to said outlet portion, a first side port extending from said inlet portion to the first sidewall opening and a second side port extending from said outlet portion to said second sidewall port.

Claim 10

Dependent Claim 37 words

A cool gas generator according to claim 7, wherein said insert is accessible from the outlet opening in said outlet member, so that it can be removed and replaced by a new insert through said outlet opening.

Claim 11

Dependent Claim 55 words

A cool gas generator according to claim 7, wherein the opening at the second end of the outer sidewall member is larger in diameter than the control insert containing portion of said outlet member and said outlet member includes a radial flange which projects outwardly to the rim of said opening, and is connected thereto.

Claim 12

Dependent Claim 42 words

A cool gas generator according to claim 7, wherein said insert includes a peripheral groove on each side of each side port and an O-ring in each groove, for sealing between the insert and the tubular wall means of the outlet section.

Claim 13

Dependent Claim 37 words

A cool gas generator according to claim 7, further including deflector means secured to the tubular wall means of the outlet section, for turning the hot gases issuing from said first port and directing them substantially axially.

Claim 14

Dependent Claim 65 words

A cool gas generator according to claim 7, wherein said insert includes a girth channel surrounding its periphery where each said side port meets the periphery, so that the side ports of the insert are always in communication with the ports in the tubular wall of the outlet section regardless of the angular relationship of the insert ports to the ports in the sidewall means.

Claim 15

Dependent Claim 69 words

A cool gas generator according to claim 7, wherein the inlet and outlet portions of said insert are larger in diameter than said generally axial passageway through the insert, said first side port has its entrance in said inlet portion, upstream of the entrance to said generally axial passageway, and the second side port discharges into said outlet portion, downstream of the discharge end of said generally axial passageway.

Claim 16

Dependent Claim 154 words

A cool gas generator comprising: generally concentric inner and outer housing means defining an annular storage space between them which is closed at both of its ends, said inner housing means including a combustion chamber, a control insert chamber, a mixing zone, and an outlet in series, said inner casing also including an access opening at the combustion chamber end therein, through which a solid fuel grain may be inserted into the combustion chamber, and a removable closure for said opening, said closure carrying initiator means for said grain, and a control insert insertable into and removable from its chamber through the outlet of said inner housing means, said control insert comprising a first metering passageway for combustion gases leading to the mixing zone, a second combustion gases passageway leading into the storage space, for supplying pressurizing gases into said space, and an outlet passageway leading from said storage space into the mixing zone.

Claim 17

Dependent Claim 154 words

A cool gas generator comprising: generally concentric inner and outer housing means defining an annular storage space between them which is closed at both of its ends, said inner housing means including a combustion chamber, a control insert chamber, a mixing zone, and an outlet in series, said inner casing also including an access opening at the combustion chamber end therein, through which a solid fuel grain may be inserted into the combustion chamber, and a removable closure for said opening, said closure carrying initiator means for said grain, and a control insert insertable into and removable from its chamber through the outlet of said inner housing means, said control insert comprising a first metering passageway for combustion gases leading to the mixing zone, a second combustion gases passageway leading into the storage space, for supplying pressurizing gases into said space, and an outlet passageway leading from said storage space into the mixing zone.

Claim 18

Dependent Claim 42 words

A cool gas generator according to claim 14, wherein said insert includes a peripheral groove on each side of each side port and an O-ring in each groove, for sealing between the insert and the tubular wall means of the outlet section.

Claim 19

Dependent Claim 37 words

A cool gas generator according to claim 14, further including deflector means secured to the tubular wall means of the outlet section, for turning the hot gases issuing from said first port and directing them substantially axially.

Claim 20

Dependent Claim 65 words

A cool gas generator according to claim 14, wherein said insert includes a girth channel surrounding its periphery where each said side port meets the periphery, so that the side ports of the insert are always in communication with the ports in the tubular wall of the outlet section regardless of the angUlar relationship of the insert ports to the ports in the sidewall means

Claim 21

Dependent Claim 69 words

A cool gas generator according to claim 14, wherein the inlet and outlet portions of said insert are larger in diameter than said generally axial passageway through the insert, said first side port has its entrance in said inlet portion, upstream of the entrance to said generally axial passageway, and the second side port discharges into said outlet portion, downstream of the discharge end of said generally axial passageway.

Claim 22

Dependent Claim 216 words

A cool gas generator, comprising: a one-piece housing formed from integrally joined inner and outer tubular wall means defining a liquid storage space between them; said inner wall means defining communicating breech, control insert and mixing chambers; said housing being open at one end of the inner wall means for insertion of a fuel cartridge through such end into the breech chamber; said housing being open in the vicinity of the mixing chamber for insertion of a control insert through such opening and the mixing chamber into the control insert chamber; said inner wall means having openings therein in the vicinity of the control insert chamber, for communicating the interior of the control insert chamber with the liquid storage space; and a control insert sized to snugly fit inside said control insert chamber and including a first metering orifice leading through it, for communicating the breech chamber with the mixing chamber, a second metering orifice for communicating the breech chamber with the interior of the liquid storage space, via a said opening in the control insert chamber portion of the inner wall means, and a third metering orifice for communicating the interior of the liquid storage space with the mixing chamber, via a said opening in the control insert chamber portion of the inner wall means.

Claim 23

Dependent Claim 216 words

A cool gas generator, comprising: a one-piece housing formed from integrally joined inner and outer tubular wall means defining a liquid storage space between them; said inner wall means defining communicating breech, control insert and mixing chambers; said housing being open at one end of the inner wall means for insertion of a fuel cartridge through such end into the breech chamber; said housing being open in the vicinity of the mixing chamber for insertion of a control insert through such opening and the mixing chamber into the control insert chamber; said inner wall means having openings therein in the vicinity of the control insert chamber, for communicating the interior of the control insert chamber with the liquid storage space; and a control insert sized to snugly fit inside said control insert chamber and including a first metering orifice leading through it, for communicating the breech chamber with the mixing chamber, a second metering orifice for communicating the breech chamber with the interior of the liquid storage space, via a said opening in the control insert chamber portion of the inner wall means, and a third metering orifice for communicating the interior of the liquid storage space with the mixing chamber, via a said opening in the control insert chamber portion of the inner wall means.

Claim 24

Dependent Claim 42 words

A cool gas generator according to claim 19, wherein said insert includes a peripheral groove on each side of each side port and an O-ring in each groove, for sealing between the insert and the tubular wall means of the outlet section.

Claim 25

Dependent Claim 37 words

A cool gas generator according to claim 19, further including deflector means secured to the tubular wall means of the outlet section, for turning the hot gases issuing from said first port and directing them substantially axially.

Claim 26

Dependent Claim 65 words

A cool gas generator according to claim 19, wherein said insert includes a girth channel surrounding its periphery where each said side port meets the periphery, so that the side ports of the insert are always in communication with the ports in the tubular wall of the outlet section regardless of the angular relationship of the insert ports to the ports in the sidewall means.

Claim 27

Dependent Claim 69 words

A cool gas generator according to claim 19, wherein the inlet and outlet portions of said insert are larger in diameter than said generally axial passageway through the insert, said first side port has its entrance in said inlet portion, upstream of the entrance to said generally axial passageway, and the second side port discharges into said outlet portion, downstream of the discharge end of said generally axial passageway.

Claim 28

Dependent Claim 78 words

A cool gas generator according to claim 1, wherein said second and third metering orifices are side ports in said insert, and said insert includes a girth channel surrounding its periphery where each said side port meets the periphery, so that the side ports of the insert are always in communication with the ports in the tubular wall of the outlet section regardless of the angular relationship of the insert ports to the ports in the sidewall means.

Claim 29

Dependent Claim 75 words

A cool gas generator according to claim 1, wherein the insert includes relatively enlarged inlet and outlet portions which are interconnected by the first orifice through the insert which orifice functions as a pressure-reducing restriction, said second orifice side port has its entrance in said inlet portion, upstream of the entrance to the first orifice, and the third orifice side port discharges into Said outlet portion, downstream of the discharge end of said first orifice.

Claim 30

Dependent Claim 71 words

A cool gas generator according to claim 19, wherein said control insert has an enlarged-diameter outlet end portion including surfaces in communication with the stored liquid pressure, and retainer means for holding the insert in place, with the stored liquid pressure acting on said surface of said enlarged diameter outlet end serving to force the insert out of the outlet section if it is not properly retained by said retainer means.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1975-02-07	1975-08-09	1976-02-08	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1979-02-07	1979-08-09	1980-02-08	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1983-02-07	1983-08-09	1984-02-08	$7700.00	Window Closed / Lapsed

Generator of cool working gases

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