Multi-component mixing storage and dispensing device

• US 6,612,465 B2
• Filed: 04/11/2002
• Issued: 09/02/2003
• Est. Priority Date: 10/13/2000
• Status: Expired due to Term

• Current Assignee: Dentsply Research & Development Corporation (Astrazeneca PLC)
• Original Assignee: Dentsply Research & Development Corporation (Astrazeneca PLC)
• Inventors: Hammesfahr, Paul D., Pierson, Paul R.
• Primary Examiner(s): Bomberg, Kenneth
• Application Number:
  US10/121,000
• Publication Number:
  US 20020160333A1
• Time in Patent Office: 509 Days
• Field of Search: 433/90, 604/191, 222/137, 222/145.1, 222/145.5, 222/145.6, 222/82, 222/86
• US Class Current: 222/82
• CPC Class Codes: A61C 5/62 Applicators, e.g. syringes or guns
• CPC Class Codes: A61C 5/64 for multi-component compositions
• CPC Class Codes: B05C 17/00516 Shape or geometry of the outlet orifice or the outlet element
• CPC Class Codes: B05C 17/00553 with means allowing the stock of material to consist of at least two different components
• CPC Class Codes: B05C 17/00593 Hand tools of the syringe type

Abstract

A multi-component, mixing, storage and dispensing package (10) has a housing 11, a displaceable cavity block (20) having at least one cavity (21) therein. A vent spike block (40) having at least one spike (42) held in an opposing relation to at least one cavity (21) is provided within the housing (11). When cavity block (21) is caused to move toward the vent spike block (40) spike (42) is caused to enter a cavity (21). A vent (43) is in fluid communication through the spike (42) with a mix channel (51) and a mixing and dispensing tip (50).

Claims

1. A multi-component, mixing, storage and dispensing package comprising:

a housing having a mixing tip attached at one end thereof, said mixing tip having an outlet orifice and an input orifice fluidly connected by a mixing channel;

said inlet orifice being in fluid communication with a housing mix channel which in turn is in fluid communication with a vent spike block;

said vent spike block having at least two spikes, each said spike having a vent therethrough;

said housing further including a displaceable cavity block having at least two cavities therein, each said cavity containing a dental material;

said cavity block being displaceable in a direction toward said vent spike block;

each of said spikes being in a parallel and opposed relation to one of said cavities;

such that when each said spike is caused to enter one of said cavities, material contained within said cavity is caused to travel through the respective said vent toward said mix channel in said housing; and

, such that continued displacement of said cavity block toward said spike block causes material from each said cavity to travel through said mix channel thereby causing physical, mixing contact between the dental materials from each said cavity, and the discharge of the mixed dental materials from said outlet orifice.