Patent US2617359A successfully refreshed from Google Patents.
Patent US3595439A successfully refreshed from Google Patents.
US3595439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination mixing capsule and dispenser
Assignee: 3M Co
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Filing: 1969-09-09
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Granted: 1971-07-27
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Expires: 1989-09-09
Abstract
Abstract A combination mixing capsule and dispenser capable of separately holding complementary materials, such as dental restorative materials until they are to be mixed and used and further serving as a dispensing device when used with suitable implements. The capsule has at least two compartments separated by an impermeable rupturable seal with each compartment containing one of the ingredients which are thereafter to be mixed and further has means to insure an adequate mixing chamber and means to permit complete expulsion of the mixed ingredients directly from the capsule.
Inventors
- 👤 Glenn A Newby
- 👤 Larry S Mctaggart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:51
CPC Classifications
A; A61; A61C; A61C5/00; A61C5/60; A61C5/66; A61C5/62; A61C5/64; Y; Y10; Y10S; Y10S215/00; Y10S215/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
280 words
A combination mixing capsule and dispenser for holding two or more ingredients separately from each other and serving to dispense a combination of said ingredients upon use comprising a first elongated body having means at one end for displacing a seal, a second elongated body having a cavity formed therein opening into one end thereof and having dispensing means at the other end thereof, removable means closing said dispensing means, said cavity providing first and second interconnecting compartments, said first compartment being larger than said second compartment with the wall of said cavity providing a shoulder at the juncture of said compartments, at least one cup open at one end and having a seal closing the other end, the thickness of the sidewall of Said cup approximating the width of said shoulder, said cup being disposed in said first compartment and having said sealed end thereof resting on said shoulder, said first body member being tightly slidably received in said cup and extending only partially thereinto to provide a sealed chamber, said first body having means for limiting the amount of penetration of said first body through said seal and into said second compartment to form a sealed mixing chamber in said second compartment between said first body and said dispensing means to permit the mixing therein of ingredients carried in said cup and said second compartment, said first body further including means for the connection therewith of an extrusion plunger for forcing said first body toward the other end of said second body through said mixing chamber for dispensing the contents of said mixing chambers through said dispensing means upon removal of said closing means from said dispensing means.
Claim 2
Dependent Claim
280 words
A combination mixing capsule and dispenser for holding two or more ingredients separately from each other and serving to dispense a combination of said ingredients upon use comprising a first elongated body having means at one end for displacing a seal, a second elongated body having a cavity formed therein opening into one end thereof and having dispensing means at the other end thereof, removable means closing said dispensing means, said cavity providing first and second interconnecting compartments, said first compartment being larger than said second compartment with the wall of said cavity providing a shoulder at the juncture of said compartments, at least one cup open at one end and having a seal closing the other end, the thickness of the sidewall of Said cup approximating the width of said shoulder, said cup being disposed in said first compartment and having said sealed end thereof resting on said shoulder, said first body member being tightly slidably received in said cup and extending only partially thereinto to provide a sealed chamber, said first body having means for limiting the amount of penetration of said first body through said seal and into said second compartment to form a sealed mixing chamber in said second compartment between said first body and said dispensing means to permit the mixing therein of ingredients carried in said cup and said second compartment, said first body further including means for the connection therewith of an extrusion plunger for forcing said first body toward the other end of said second body through said mixing chamber for dispensing the contents of said mixing chambers through said dispensing means upon removal of said closing means from said dispensing means.
Claim 3
Dependent Claim
27 words
A combination mixing capsule and dispenser as recited in claim 1 wherein said dispensing means is an elongated tube extending from an opening in said second body.
Claim 4
Dependent Claim
17 words
A combination mixing capsule and dispenser as recited in claim 1 wherein said seal is metal foil.
Claim 5
Dependent Claim
301 words
A combination mixing capsule and dispenser for separately storing and thereafter mixing a dental restorative resin and a catalyst therefor to allow initiation of hardening of said resin in the capsule later to be extruded into a dental restorative area comprising a first elongated body having a closed end for displacing a seal, a second elongated body having a cavity formed therein open therein opening into one end thereof and having a dispensing tube at the other end thereof, a plug closing said dispensing tube, said cavity providing first and second interconnecting compartments, said first compartment being larger than said second compartment with the wall of said cavity providing a shoulder at the juncture of said compartments, a cup open at one end and having a metal foil seal closing the other end, the thickness of the sidewall of said cup approximating the width of said shoulder, said cup being disposed in said first compartment and having said sealed end thereof resting on said shoulder, said first body member being tightly slidably received in said cup and extending only partially thereinto to provide a sealed chamber, said first body having a cap thereon limiting the amount of penetration of said first body through said seal and into said second compartment to form a sealed mixing chamber in said second compartment between said first body and said dispensing tube to permit the mixing therein of the dental ingredients carried in said cup and said second compartment, said cap on said first body having an aperture therethrough for the connection therewith of an extrusion plunger for forcing said first body toward the other end of said second body through said mixing chamber for dispensing the contents of said mixing chamber through said dispensing tube upon removal of said plug from said dispensing tube.
Claim 6
Dependent Claim
301 words
A combination mixing capsule and dispenser for separately storing and thereafter mixing a dental restorative resin and a catalyst therefor to allow initiation of hardening of said resin in the capsule later to be extruded into a dental restorative area comprising a first elongated body having a closed end for displacing a seal, a second elongated body having a cavity formed therein open therein opening into one end thereof and having a dispensing tube at the other end thereof, a plug closing said dispensing tube, said cavity providing first and second interconnecting compartments, said first compartment being larger than said second compartment with the wall of said cavity providing a shoulder at the juncture of said compartments, a cup open at one end and having a metal foil seal closing the other end, the thickness of the sidewall of said cup approximating the width of said shoulder, said cup being disposed in said first compartment and having said sealed end thereof resting on said shoulder, said first body member being tightly slidably received in said cup and extending only partially thereinto to provide a sealed chamber, said first body having a cap thereon limiting the amount of penetration of said first body through said seal and into said second compartment to form a sealed mixing chamber in said second compartment between said first body and said dispensing tube to permit the mixing therein of the dental ingredients carried in said cup and said second compartment, said cap on said first body having an aperture therethrough for the connection therewith of an extrusion plunger for forcing said first body toward the other end of said second body through said mixing chamber for dispensing the contents of said mixing chamber through said dispensing tube upon removal of said plug from said dispensing tube.
Claim 7
Dependent Claim
18 words
A combination mixing capsule and dispenser as recited in claim 4 wherein said seal is a ployethylene-aluminum-polyester laminate.
References Cited (Backward Citations)
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US3351058A
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US3344914A
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US3537605A
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US3494359A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |