US3622050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metered compound applying nozzle
Assignee: Anchor Hocking LLC
•
Filing: 1969-02-13
•
Granted: 1971-11-23
•
Expires: 1989-02-13
Abstract
Abstract A nozzle for injecting liquid into articles and particularly for injecting relatively viscous liquids including plastisols or other flowable compounds such as are used to form gaskets in hollow closure shells. The nozzle injects a precisely predetermined volume of flowable material at a controlled rate so that a gasket ring or other element may be formed with a precise degree of overlap. The volume is controlled by admitting a predetermined amount of the liquid compound into a charge chamber which is then closed off from the compound source. This charge is then injected through the nozzle orifice by the opening of a control needle a predetermined amount while the compound is forced through the orifice by a discharge piston as it displaces the predetermined volume of compound in the charge chamber.
Inventors
- 👤 Daniel D Acton
- 👤 Orris E Mumford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:18
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/02; B29C41/20; B29C31/00; B29C31/04; B29C31/041; B29C31/06; B29C31/061; B29C31/063; B29C41/04; B29C41/042; B29C41/045; B29C45/00; B29C45/17; B29C45/46; B29C45/461; B29C45/53; B29C70/00; B29C70/68; B29C70/78; B29C70/80; G; G01; G01F; G01F11/00; G01F11/02; G01F11/04; G01F11/06; B29C33/00; B29C33/34; B29C33/36; B29L; B29L2031/00; B29L2031/56; B29L2031/565
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
196 words
An improved injection nozzle for viscous liquid material to form a line of the liquid of predetermined cross section and length comprising the combination of a nozzle head, an injection orifice in said nozzle head, a cavity in said nozzle head communicating with said orifice, an inlet communicating with said cavity and adapted for being connected to a source of said material for admitting the material into the cavity, valve means for opening and closing said inlet, a remotely controlled drive for said valve means, an injection plunger movably mounted within said cavity for forcing the material through said orifice, a control needle for said orifice passing through said cavity, remotely controlled drive means for moving said control needle to open and close said orifice, means for adjusting the opened position of said control needle to control the line cross section, remotely controlled drive means of adjustable force coupled to said plunger for moving it a predetermined distance within said cavity for forcing a predetermined volume of the material through said orifice to control the flow rate, and means for adjusting the predetermined distance which the plunger is moved to control the volume of liquid injected.
Claim 2
Dependent Claim
196 words
An improved injection nozzle for viscous liquid material to form a line of the liquid of predetermined cross section and length comprising the combination of a nozzle head, an injection orifice in said nozzle head, a cavity in said nozzle head communicating with said orifice, an inlet communicating with said cavity and adapted for being connected to a source of said material for admitting the material into the cavity, valve means for opening and closing said inlet, a remotely controlled drive for said valve means, an injection plunger movably mounted within said cavity for forcing the material through said orifice, a control needle for said orifice passing through said cavity, remotely controlled drive means for moving said control needle to open and close said orifice, means for adjusting the opened position of said control needle to control the line cross section, remotely controlled drive means of adjustable force coupled to said plunger for moving it a predetermined distance within said cavity for forcing a predetermined volume of the material through said orifice to control the flow rate, and means for adjusting the predetermined distance which the plunger is moved to control the volume of liquid injected.
Claim 3
Dependent Claim
22 words
The nozzle as claimed in claim 1, in which said means for opening and closing said inlet comprises a fluid operated valve.
Claim 4
Dependent Claim
26 words
The nozzle as claimed in claim 1, in which said plunger drive means comprises a fluid motor including means for adjusting the distance of plunger movement.
Claim 5
Dependent Claim
21 words
The nozzle as claimed in claim 1 in which said means for moving said nozzle control needle comprises a fluid motor.
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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |