Bayonet fastening device for the attachment of an accessory to a multiple component cartridge or dispensing device
AssigneeWilhelm A. Keller
InventorsWilhelm A. Keller, Richard J. Wilson
Life of this patent
Estimating the term…
Abstract
The bayonet attachment on the cartridge for attaching a mixer or accessory to a multiple component cartridge is formed as a ring-shaped bayonet socket with two internal recesses and two diametrically opposed cutouts forming one bayonet coupling part means, whereas the bayonet attachment of the mixer or accessory comprises two bayonet lugs corresponding to the cutouts. In a preferred embodiment the lugs and cutouts are of different widths for the coded alignment of the mixer or accessory to the cartridge in one predetermined position only.
Claims44
A mixer for a cartridge, the cartridge having a plurality of chambers each having an outlet, the mixer comprising:
- a housing;
- a mixer element disposed in said housing;
- a plurality of inlets for engagement with the outlets of the cartridge and mounted on said housing;
- and
- a bayonet coupling on said housing for detachably connecting said mixer to the multichamber cartridge, said bayonet coupling having locked and unlocked positions;
- said inlets being fixedly disposed relative to said housing so that said housing is disposed in the same position relative to the cartridge when said bayonet coupling is in either said locked position or said unlocked position.
A mixer for a cartridge, the cartridge having a plurality of chambers each having an outlet, the mixer comprising:
- a housing;
- a mixer element disposed in said housing;
- a plurality of inlets for engagement with the outlets of the cartridge and mounted on said housing;
- a bayonet coupling on said housing for detachably connecting said mixer to the multichamber cartridge, said bayonet coupling having locked and unlocked positions;
- and
- a coding element that permits said inlets of said housing to be aligned and connected to the outlets of the cartridge in only one orientation.
A cartridge for a mixer, the mixer having a plurality of inlets, the cartridge comprising:
- a plurality of chambers each having an outlet for engagement with the inlets of the mixer;
- a bayonet coupling on the cartridge for detachably connecting said cartridge to the mixer, said bayonet coupling having locked and unlocked positions;
- and
- a coding element that permits said outlets of said chambers to be aligned and connected to the respective inlets of the mixer in only one orientation.
A dispensing device comprising a cartridge and a mixer, said cartridge comprising:
- a plurality of chambers each having an outlet, and
- a first bayonet coupling;
- and
- a said mixer comprising:
- a housing with a plurality of inlets corresponding in number to said outlets, each inlet being configured to engage a respective one of said outlets;
- a mixer element disposed in said housing;
- and
- a second bayonet coupling complementary with said first bayonet coupling of said cartridge, said first bayonet coupling being detachable from said second bayonet coupling and together forming a detachable bayonet assembly, said first and second bayonet couplings having locked and unlocked positions;
- said inlets being fixedly disposed relative to said housing so that said housing is disposed in the same position relative to the cartridge when said bayonet coupling is in either said locked position or said unlocked position.
A dispensing device comprising
- a cartridge,
- a mixer, and
- complementary coding elements formed on said cartridge and mixer,
- said cartridge comprising:
- a plurality of chambers each having an outlet, and
- a first bayonet coupling,
- said mixer comprising:
- a housing with a plurality of inlets corresponding in number to said outlets, each inlet being configured to engage a respective one of said outlets,
- a mixer element disposed in said housing, and
- a second bayonet coupling complementary with said first bayonet coupling of said cartridge, said first bayonet coupling being detachable from said second bayonet coupling and together forming a detachable bayonet assembly;
- and
- wherein said coding elements permit said inlets of said mixer to be aligned and connected to the respective outlets of said cartridge in only one orientation.
A method of forming a dispensing device, comprising the steps of:
- providing a cartridge having a plurality of chambers each having an outlet;
- providing a mixer comprising a housing with a plurality of inlets corresponding in number to said outlets, each inlet being configured to engage a respective one of said outlets, and a mixer element disposed in said housing;
- providing a two-part bayonet coupling assembly, with a first coupling part associated with said housing and a second coupling part complementary with said first coupling part and associated with said cartridge, wherein one of said first and second coupling parts is rotatably mounted respectively to said housing and said cartridge;
- aligning the inlets of said mixer to the respective outlets of said cartridge and engaging said inlets to said outlets;
- maintaining said inlets fixed relative to said housing so that said housing stays in a fixed position relative to said cartridge while rotating said one rotatably mounted coupling part to lock said mixer to said cartridge.
Dependencies are inferred from the claim text.