US3563415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multidrop adapter
Assignee: MULTI DROP ADAPTER CORP
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Filing: 1969-06-04
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Granted: 1971-02-16
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Expires: 1989-06-04
Abstract
Abstract A multidrop adapter or dispenser in which a tubular member which may have an enlarged head for containing a powder or substance to be mixed with a liquid in the remainder of the tubular member is telescopically received in a second tubular member which seals one end of a piston which extends into the first tubular member and has a bore which extends out of said second tubular member to expel a drop of liquid when said first tubular member is telescopically moved into said second tubular member and over said piston; and resilient means biasing said first tubular member out of said second tubular member. A plug in said first tubular member is dispelled into said enlarged head upon movement of said first tubular member over said piston when said enlarged head is employed in the invention.
Inventors
- 👤 Robert W Ogle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:07
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/14; A61J1/20; A61J1/2093; A61M; A61M5/00; A61M5/178; A61M5/24; A61M5/2422; A61M5/2429; A61J1/2003; A61J1/202; A61J1/2041; A61J1/2044; A61M5/2448
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
109 words
A multidrop dispenser comprising: a first tubular member having an open end and a closed end; a second tubular member having an open end and a partially closed end, said first tubular member being telescopically slidable in said second tubular member; a piston in said first tubular member and having a portion extending into and through the partially closed end of said second tubular member; a central bore in said piston; and resilient means having extended and collapsed positions carried by said second tubular member and adapted to engage said first tubular member and biasing said first tubular member towards extended rather than collapsed position of said resilient means.
Claim 2
Dependent Claim
109 words
A multidrop dispenser comprising: a first tubular member having an open end and a closed end; a second tubular member having an open end and a partially closed end, said first tubular member being telescopically slidable in said second tubular member; a piston in said first tubular member and having a portion extending into and through the partially closed end of said second tubular member; a central bore in said piston; and resilient means having extended and collapsed positions carried by said second tubular member and adapted to engage said first tubular member and biasing said first tubular member towards extended rather than collapsed position of said resilient means.
Claim 3
Dependent Claim
46 words
A multidrop dispenser as set forth in claim 1 in which said first tubular member is provided with an enlarged head and a stopper adapted to be forced into said enlarged head upon partial telescopic movement of said first tubular member into said second tubular member.
Claim 4
Dependent Claim
57 words
A multidrop dispenser as set forth in claim 1 in which said piston terminates in a nose upon which a bead, a drop, of liquid is formed upon expulsion of such liquid from said first tubular member through said bore by telescopic movement of said first tubular member into said second tubular member and over said piston.
Claim 5
Dependent Claim
57 words
A multidrop dispenser as set forth in claim 2 in which said piston terminates in a nose upon which a bead, a drop, of liquid is formed upon expulsion of such liquid from said first tubular member through said bore by telescopic movement of said first tubular member into said second tubular member and over said piston.
Claim 6
Dependent Claim
35 words
A multidrop dispenser as set forth in claim 1 in which said resilient means comprises a rubberlike ring member adapted to be compressed upon movement of said first tubular member into said second tubular member.
Claim 7
Dependent Claim
35 words
A multidrop dispenser as set forth in claim 2 in which said resilient means comprises a rubberlike ring member adapted to be compressed upon movement of said first tubular member into said second tubular member.
Claim 8
Dependent Claim
35 words
A multidrop dispenser as set forth in claim 3 in which said resilient means comprises a rubberlike ring member adapted to be compressed upon movement of said first tubular member into said second tubular member.
Claim 9
Dependent Claim
50 words
A multidrop dispenser as set forth in claim 1 in which said resilient means comprises a coil spring seated in said second tubular member and adapted to engage the partially closed end thereof at one end anD the inner end of said first tubular member at the other end thereof.
Claim 10
Dependent Claim
50 words
A multidrop dispenser as set forth in claim 2 in which said resilient means comprises a coil spring seated in said second tubular member and adapted to engage the partially closed end thereof at one end and the inner end of said first tubular member at the other end thereof.
Claim 11
Dependent Claim
50 words
A multidrop dispenser as set forth in claim 4 in which said resilient means comprises a coil spring seated in said second tubular member and adapted to engage the partially closed end thereof at one end and the inner end of said first tubular member at the other end thereof.
References Cited (Backward Citations)
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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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |