US4684366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Syringe for the remote injection of animals and fish
Assignee: Individual
•
Filing: 1985-09-16
•
Granted: 1987-08-04
•
Expires: 2005-09-16
Abstract
Abstract A novel syringe is provided herein. It includes a cylindrical barrel having a closed forward end provided with a longitudinally-extending channel therethrough. A hypodermic needle is slidably received in the channel. A frangible septum is disposed in the channel and is adapted to be pierced upon inward sliding movement of the hypodermic needle. At least a single stopper is slidably and sealingly disposed in the barrel to divide the barrel into (i) a forward, payload chamber, defined between the closed forward end of the barrel and the leading face of the stopper, and (ii) a rearward propulsion chamber downstream of the trailing face of the stopper. The propulsion chamber is controllably variably prechargeable to a predetermined gaseous pressure. The syringe may be used with a novel retractable collar and with a novel sliding fin assembly. This syringe allows injection, from a distance, of aquatic or land animals with tranquillizers, medications, or other chemical compounds without entrapment and stressing of the animal. A variation of this syringe is taught herein to allow the remote tranquillization and entrapment of aquatic animals where the animals may not be visibly selected.
Inventors
- 👤 Christopher G. Denny
- 👤 Brian J. Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:36
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/36; F42B12/46; F42B12/54
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
210 words
A syringe comprising: (a) a barrel having a closed forward end provided with a longitudinally extending channel therethrough; (b) a hypodermic needle slidable received in said channel; (c) a frangible septum disposed in said channel and adapted to be pierced upon inward sliding movement of said hypodermic needle; and, (d) at least a single stopper slidably and sealingly disposed in said barrel to divide said barrel into (i) a forward, payload chamber, defined between the closed forward end of said barrel and the leading face of the stopper and (ii) a rearward propulsion chamber downstream of the trailing face of said stopper, said propulsion chamber being prechargeable to a controllable, variable, predetermined gaseous pressure, and wherein said hypodermic needle is a releasing needle structure comprising: an open-ended, skirt-shaped guide having a closed end pireced by a longitudinally-extending channel; a hollow hypodermic needle temporarily secured within said guide by means of a lower fixed disc attached to said needle, said hypodermic needle being adapted to be slidable within said guide; a compressed recoil member disposed between said fixed disc and said guide; and an upper, temporary, disintegratable disc held in place by an impact frangible seal; whereby disintegration of said disc results in movement of said needle into said cylindrical guide.
Claim 2
Dependent Claim
210 words
A syringe comprising: (a) a barrel having a closed forward end provided with a longitudinally extending channel therethrough; (b) a hypodermic needle slidable received in said channel; (c) a frangible septum disposed in said channel and adapted to be pierced upon inward sliding movement of said hypodermic needle; and, (d) at least a single stopper slidably and sealingly disposed in said barrel to divide said barrel into (i) a forward, payload chamber, defined between the closed forward end of said barrel and the leading face of the stopper and (ii) a rearward propulsion chamber downstream of the trailing face of said stopper, said propulsion chamber being prechargeable to a controllable, variable, predetermined gaseous pressure, and wherein said hypodermic needle is a releasing needle structure comprising: an open-ended, skirt-shaped guide having a closed end pireced by a longitudinally-extending channel; a hollow hypodermic needle temporarily secured within said guide by means of a lower fixed disc attached to said needle, said hypodermic needle being adapted to be slidable within said guide; a compressed recoil member disposed between said fixed disc and said guide; and an upper, temporary, disintegratable disc held in place by an impact frangible seal; whereby disintegration of said disc results in movement of said needle into said cylindrical guide.
Claim 3
Dependent Claim
17 words
The syringe of claim 1, including a safety cap temporarily and removable disposed over said hypodermic needle.
Claim 4
Dependent Claim
217 words
A syringe comprising: (a) a barrel having a closed forward end provided with a longitudinally extending channel therethrough; (b) a hypodermic needle slidable received in said channel; (c) a frangible septum disposed in said channel and adapted to be pierced upon inward sliding movement of said hypodermic needle; and, (d) at least a single stopper slidably and sealingly disposed in said barrel to divide said barrel into (i) a forward, payload chamber, defined between the closed forward end of said barrel and the leading face of the stopper and (ii) a rearward propulsion chamber downstream of the trailing face of said stopper, said propulsion chamber being prechargeable to a controllable, variable, predetermined gaseous pressure, and wherein said hypodermic needle structure is a releasing needle comprising: an open-ended, skirt-shaped cylindrical guide having its closed end pierced by a longitudinally extending channel; a hollow hypodermic needle temporarily secured within said cylindrical guide by means of a lower fixed disc attached to said hypodermic needle, said hypodermic needle being adapted to be slidable within said cylindrical guide; a compressed coil spring disposed between said fixed disc and said cylindrical guide; and an upper, temporary, disintegratable disc held in place by an impact frangible seal; whereby disintegration of said disc results in movement of said hypodermic needle into said cylindrical guide.
Claim 5
Dependent Claim
217 words
A syringe comprising: (a) a barrel having a closed forward end provided with a longitudinally extending channel therethrough; (b) a hypodermic needle slidable received in said channel; (c) a frangible septum disposed in said channel and adapted to be pierced upon inward sliding movement of said hypodermic needle; and, (d) at least a single stopper slidably and sealingly disposed in said barrel to divide said barrel into (i) a forward, payload chamber, defined between the closed forward end of said barrel and the leading face of the stopper and (ii) a rearward propulsion chamber downstream of the trailing face of said stopper, said propulsion chamber being prechargeable to a controllable, variable, predetermined gaseous pressure, and wherein said hypodermic needle structure is a releasing needle comprising: an open-ended, skirt-shaped cylindrical guide having its closed end pierced by a longitudinally extending channel; a hollow hypodermic needle temporarily secured within said cylindrical guide by means of a lower fixed disc attached to said hypodermic needle, said hypodermic needle being adapted to be slidable within said cylindrical guide; a compressed coil spring disposed between said fixed disc and said cylindrical guide; and an upper, temporary, disintegratable disc held in place by an impact frangible seal; whereby disintegration of said disc results in movement of said hypodermic needle into said cylindrical guide.
Claim 6
Dependent Claim
17 words
The syringe of claim 3, including a safety cap temporarily and removably disposed over said hypodermic needle.
Claim 7
Dependent Claim
239 words
A syringe comprising: (a) a barrel having a closed forward end provided with a longitudinally extending channel therethrough; (b) a hypodermic needle slidable received in said channel; (c) a frangible septum disposed in said channel and adapted to be pierced upon inward sliding movement of said hypodermic needle; and, (d) at least a single stopper slidably and sealingly disposed in said barrel to divide said barrel into (i) a forward, payload chamber, defined between the closed forward end of said barrel and the leading face of the stopper and (ii) a rearward propulsion chamber downstream of the trailing face of said stopper, said propulsion chamber being prechargeable to a controllable, variable, predetermined gaseous pressure, and wherein said hypodermic needle is a releasing needle structure comprising: an open-ended, skirt-shaped cylindrical guide formed of a plastics material and having its closed end pierced by a longitudinally extending channel; a hollow hypodermic needle temporarily secured within said cylindrical guide by means of a lower fixed disc attached to said hypodermic needle, said hypodermic needle being adapted to be slidable within said cylindrical guide; a compressed coil spring disposed between said fixed disc and said cylindrical guide; and an upper, temporary, disc formed of a water-soluble material adaptable to dissolve slowly upon contact with water, said temporary disc being held in place by an impact frangible seal; whereby dissolution of said disc results in movement of said hypodermic needle into said cylindrical guide.
Claim 8
Dependent Claim
239 words
A syringe comprising: (a) a barrel having a closed forward end provided with a longitudinally extending channel therethrough; (b) a hypodermic needle slidable received in said channel; (c) a frangible septum disposed in said channel and adapted to be pierced upon inward sliding movement of said hypodermic needle; and, (d) at least a single stopper slidably and sealingly disposed in said barrel to divide said barrel into (i) a forward, payload chamber, defined between the closed forward end of said barrel and the leading face of the stopper and (ii) a rearward propulsion chamber downstream of the trailing face of said stopper, said propulsion chamber being prechargeable to a controllable, variable, predetermined gaseous pressure, and wherein said hypodermic needle is a releasing needle structure comprising: an open-ended, skirt-shaped cylindrical guide formed of a plastics material and having its closed end pierced by a longitudinally extending channel; a hollow hypodermic needle temporarily secured within said cylindrical guide by means of a lower fixed disc attached to said hypodermic needle, said hypodermic needle being adapted to be slidable within said cylindrical guide; a compressed coil spring disposed between said fixed disc and said cylindrical guide; and an upper, temporary, disc formed of a water-soluble material adaptable to dissolve slowly upon contact with water, said temporary disc being held in place by an impact frangible seal; whereby dissolution of said disc results in movement of said hypodermic needle into said cylindrical guide.
Claim 9
Dependent Claim
17 words
The syringe of claim 5, including a safety cap temporarily and removable disposed over said hypodermic needle.
Claim 10
Dependent Claim
237 words
A syringe comprising: (a) a barrel having a closed forward end provided with a longitudinally extending channel therethrough; (b) a hypodermic needle slidable received in said channel; (c) a frangible septum disposed in said channel and adapted to be pierced upon inward sliding movement of said hypodermic needle; and, (d) at least a single stopper slidably and sealingly disposed in said barrel to divide said barrel into (i) a forward, payload chamber, defined between the closed forward end of said barrel and the leading face of the stopper and (ii) a rearward propulsion chamber downstream of the trailing face of said stopper, said propulsion chamber being prechargeable to a controllable, variable, predetermined gaseous pressure, and wherein said hypodermic needle is a releasing needle structure comprising: an open-ended, skirt-shaped cylindrical guide formed of metal and having its closed end pierced by a longitudinally extending channel; a hollow hypodermic needle temporarily secured within said cylindrical guide by means of a lower fixed disc attached to said hypodermic needle, said hypodermic needle being adapted to be slidable within said cylindrical guide; a compressed coil spring disposed between said fixed disc and said cylindrical guide; and an upper, temporary, disc formed or a water-soluble material adaptable to dissolve slowly upon contact with water, said temporary disc being held in place by an impact frangible seal; whereby dissolution of said disc results in movement of said hypodermic needle into said cylindrical guide.
Claim 11
Dependent Claim
237 words
A syringe comprising: (a) a barrel having a closed forward end provided with a longitudinally extending channel therethrough; (b) a hypodermic needle slidable received in said channel; (c) a frangible septum disposed in said channel and adapted to be pierced upon inward sliding movement of said hypodermic needle; and, (d) at least a single stopper slidably and sealingly disposed in said barrel to divide said barrel into (i) a forward, payload chamber, defined between the closed forward end of said barrel and the leading face of the stopper and (ii) a rearward propulsion chamber downstream of the trailing face of said stopper, said propulsion chamber being prechargeable to a controllable, variable, predetermined gaseous pressure, and wherein said hypodermic needle is a releasing needle structure comprising: an open-ended, skirt-shaped cylindrical guide formed of metal and having its closed end pierced by a longitudinally extending channel; a hollow hypodermic needle temporarily secured within said cylindrical guide by means of a lower fixed disc attached to said hypodermic needle, said hypodermic needle being adapted to be slidable within said cylindrical guide; a compressed coil spring disposed between said fixed disc and said cylindrical guide; and an upper, temporary, disc formed or a water-soluble material adaptable to dissolve slowly upon contact with water, said temporary disc being held in place by an impact frangible seal; whereby dissolution of said disc results in movement of said hypodermic needle into said cylindrical guide.
Claim 12
Dependent Claim
17 words
The syringe of claim 7, including a safety cap temporarily and removably disposed over said hypodermic needle.
References Cited (Backward Citations)
US2168437A
Cited
US2744527A
Cited
US3207157A
Cited
US3359979A
Cited
GB1048066A
Cited
US3563373A
Cited
US3433223A
Cited
US3605744A
Cited
US3721241A
Cited
US3939833A
Cited
US4178928A
Cited
US4333456A
Cited
US4447231A
Cited
US4390016A
Cited
US4394863A
Cited
US4378015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-03 | 1991-02-02 | 1991-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-03 | 1995-02-02 | 1995-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-03 | 1999-02-02 | 1999-08-04 | $7700.00 | Window Closed / Lapsed |