Cartridge assembly for a projectable load
First Claim
1. A cartridge assembly for projecting a load therefrom, said cartridge assembly comprising a hollow casing having an open end and a rupturable closed end, a piston movably positioned within said casing, projecting means arranged between said piston and said open end for projecting said load from said casing by movement of said piston, a portion of said piston and an interior of said casing adjacent said open end cooperating with a portion of said projecting means to provide an opening therebetween, a seal provided within said opening in contact with said portion of said piston, said portion of said casing and said portion of said projecting means for providing a sealed area thereat, whereby said projecting means is removably sealed within said open end by engagement with said seal.
1 Assignment
0 Petitions
Accused Products
Abstract
Unitary cartridge of plastic material for discharging a pyrotechnic mixture, smoke flare, chaff round, and the like is disclosed. A slidable piston is contained within a hollow casing forming the cartridge to engage with a portion of the casing to provide an internal integral seal for sealing a replaceable impulse cartridge and/or blank plug therein. A moisture proof seal is thereby maintained when the cartridge is armed by the insertion of an impulse cartridge or downloaded by the insertion of a blank plug. To facilitate the assembly of the cartridge, a rupturable closed end is provided with an internal lip adapted for engagement with an end plug to facilitate its alignment and positioning therein.
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Citations
21 Claims
- 1. A cartridge assembly for projecting a load therefrom, said cartridge assembly comprising a hollow casing having an open end and a rupturable closed end, a piston movably positioned within said casing, projecting means arranged between said piston and said open end for projecting said load from said casing by movement of said piston, a portion of said piston and an interior of said casing adjacent said open end cooperating with a portion of said projecting means to provide an opening therebetween, a seal provided within said opening in contact with said portion of said piston, said portion of said casing and said portion of said projecting means for providing a sealed area thereat, whereby said projecting means is removably sealed within said open end by engagement with said seal.
- 9. A cartridge assembly for projecting a load therefrom, said cartridge assembly comprising a hollow casing having an open end and a rupturable closed end, a shoulder provided within said casing adjacent said open end, a piston movably positioned within said casing and having a ridge adjacent said shoulder, projecting means arranged between said piston and said open end for projecting said load from said casing by movement of said piston, said shoulder and said ridge cooperating with a circumferential portion of said projecting means to provide an annular opening therebetween, a seal provided within said annular opening in contact with said shoulder, said ridge and said circumferential portion of said projecting means, whereby said projecting means is removably sealed within said open end by engagement with said seal.
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15. A cartridge assembly for projecting a load therefrom, said cartridge assembly comprising a hollow casing having an open end and a rupturable closed end, said rupturable closed end comprising a closure received within said rupturable closed end, stop means provided within said casing adjacent said rupturable closed end for limiting the extent of insertion of said closure within said casing by the engagement therewith, and seal means for sealing said closure within said rupturable closed end;
- a shoulder provided within said casing adjacent said open end, said shoulder and said casing being of unitary construction;
a piston movably positioned within said casing and having a ridge adjacent said open end in engagement with said shoulder;
a load positioned within said casing between said piston and said rupturable closed end;
projecting means removably inserted within said open end in advance of said piston for projecting said load from said casing through said rupturable closed end by movement of said piston away from said open end, said shoulder and said ridge cooperating with a circumferential portion of said projecting means to provide an annular opening therebetween; and
a seal provided within said annular opening in simultaneous contact with said shoulder, said ridge and said circumferential projecting means of said piston for removably sealing said projecting means therein, said seal being compressed within said annular opening upon engagement with said projecting means. - View Dependent Claims (16, 17, 18, 19, 20, 21)
- a shoulder provided within said casing adjacent said open end, said shoulder and said casing being of unitary construction;
Specification