US3674181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Syringe and holder
Assignee: Individual
•
Filing: 1970-01-23
•
Granted: 1972-07-04
•
Expires: 1990-01-23
Abstract
Abstract A syringe is provided with a vertical support having a stem closing the nozzle of the syringe whereby the cylindrical barrel of the syringe may be partially filled with the impression material such as an epoxy resin formed by constituents added separately through the open upper end of the body and mixed within the syringe. The plunger for the syringe has a minute vent opening therethrough permitting the escape of air as the plunger is forced downwardly into the upper end of the syringe barrel to the level of the material therein. The syringe is thereafter applied to the object to receive the impression and the plunger actuated to force the material through the nozzle into the object.
Inventors
- 👤 Joseph D Marks
- 👤 Norman G Le Beck
- 👤 Glenn L Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:21
CPC Classifications
A; A61; A61F; A61F11/00; A61M; A61M3/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
181 words
In combination with a syringe having a cylindrical barrel member with a nozzle extending axially from one end thereof with a central discharge opening of substantial length and with an open end opposite to the nozzle, of a base for supporting the syringe comprising a block having a cavity in its upper surface adapted to receive the nozzle end of the syringe and having a circumferential upwardly facing shoulder adapted to engage and support the end of the syringe to thereby hold the syringe in an upright position with the nozzle facing downwardly, said block having an upward vertical stem centrally of the recess therein and adapted to enter and fill the nozzle opening for substantially its full length, a plunger member with a piston head adapted to reciprocate in said barrel member in sealed relation to the walls thereof and removable through said open end thereof, and air vent means in one of said membErs disposed to provide for the escape of entrapped air from said barrel when said plunger is initially inserted through said open end of said barrel.
Claim 2
Dependent Claim
181 words
In combination with a syringe having a cylindrical barrel member with a nozzle extending axially from one end thereof with a central discharge opening of substantial length and with an open end opposite to the nozzle, of a base for supporting the syringe comprising a block having a cavity in its upper surface adapted to receive the nozzle end of the syringe and having a circumferential upwardly facing shoulder adapted to engage and support the end of the syringe to thereby hold the syringe in an upright position with the nozzle facing downwardly, said block having an upward vertical stem centrally of the recess therein and adapted to enter and fill the nozzle opening for substantially its full length, a plunger member with a piston head adapted to reciprocate in said barrel member in sealed relation to the walls thereof and removable through said open end thereof, and air vent means in one of said membErs disposed to provide for the escape of entrapped air from said barrel when said plunger is initially inserted through said open end of said barrel.
Claim 3
Dependent Claim
24 words
The combination of claim 1, in which said air vent means comprises a weep hole extending longitudinally through the piston head of said plunger.
References Cited (Backward Citations)
US112082A
Cited
US2259992A
Cited
US2363474A
Cited
US2695612A
Cited
US2696213A
Cited
US2931543A
Cited
US3291128A
Cited
US3279654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |