Patent US4563174A successfully refreshed from Google Patents.
US4563174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for mixing several components
Assignee: LONTRADE JEAN
•
Filing: 1983-02-28
•
Granted: 1986-01-07
•
Expires: 2003-02-28
Abstract
Abstract A device for mixing two components, at least one of them a liquid, has a barrel with a wide-open end receiving a tubular plunger having an extremity open toward the barrel. The plunger is provided at that extremity with a relatively rotatable plug, fitting slidably into the open barrel end, and forms an outlet for the contents of that plunger which can be opened or closed by such relative rotation whereby the plug/plunger assembly can be filled with one component and sealed before being introduced from above into the barrel loaded with the other component. Either the plug or the plunger consists of elastic material and the plunger or the barrel may be provided with a sealable discharge opening which can be fitted with a needle when the device is to be used as a syringe.
Inventors
- 👤 Philippe Dupont
- 👤 Jean Lontrade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:58
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/315; A61M5/31596
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
219 words
A device for mixing several components, comprising: a first tubular member forming a receptacle for a first component and having a wide-open end; a second tubular member forming a receptacle for a second component and having an open extremity projecting into said wide-open end; and a plug slidable but nonrotatably fitted into said wide-open end in engagement with said extremity, said plug forming with said extremity an outlet for said second component closable by relative rotation of said plug and said second tubular member, said plug and said second tubular member together constituting a sealable unit bodily withdrawable from said first tubular member for filling with said second component and closure of said outlet prior to reintroduction into said first tubular member, said plug having a body with an annular groove bounded by concentric inner and outer peripheral surfaces receiving said extremity therebetween, said outlet including two internal passages of said body respectively terminating at said peripheral surfaces and opening radially toward one another and communicating with each other through a lateral port formed in said extremity in a predetermined relative rotary position of said second tubular member, one of said passages being open axially to the interior of said first tubular member, the other of said passages being open axially to the interior of said second tubular member.
Claim 2
Independent Claim
219 words
A device for mixing several components, comprising: a first tubular member forming a receptacle for a first component and having a wide-open end; a second tubular member forming a receptacle for a second component and having an open extremity projecting into said wide-open end; and a plug slidable but nonrotatably fitted into said wide-open end in engagement with said extremity, said plug forming with said extremity an outlet for said second component closable by relative rotation of said plug and said second tubular member, said plug and said second tubular member together constituting a sealable unit bodily withdrawable from said first tubular member for filling with said second component and closure of said outlet prior to reintroduction into said first tubular member, said plug having a body with an annular groove bounded by concentric inner and outer peripheral surfaces receiving said extremity therebetween, said outlet including two internal passages of said body respectively terminating at said peripheral surfaces and opening radially toward one another and communicating with each other through a lateral port formed in said extremity in a predetermined relative rotary position of said second tubular member, one of said passages being open axially to the interior of said first tubular member, the other of said passages being open axially to the interior of said second tubular member.
Claim 3
Dependent Claim
21 words
A device as defined in claim 1 wherein at least one of the constituents of said unit consists of elastic material.
Claim 4
Dependent Claim
25 words
A device as defined in claim 1 wherein one of said tubular members is provided with a sealable discharge opening remote from said wide-open end.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-06 | 1989-07-08 | 1990-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-06 | 1993-07-08 | 1994-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-06 | 1997-07-08 | 1998-01-07 | $7700.00 | Window Closed / Lapsed |