Patent US3921685A successfully refreshed from Google Patents.
US3921685A
Expired / Lapsed
US
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Sealing material injector nozzle
Assignee: Motors Liquidation Co
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Filing: 1974-07-24
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Granted: 1975-11-25
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Expires: 1994-07-24
Abstract
Abstract An injector nozzle for injecting sealing material into an endless sealing space between two assembled parts wherein the nozzle has an outlet that directs the sealing material in one direction into the sealing space, a dam that prevents flow in the opposite direction, and a vent in the exterior thereof that vents the sealing space ahead of the flowing sealing material.
Inventors
- 👤 Robert J Steffes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:57
CPC Classifications
F; F02; F02B; F02B55/00; F02B55/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
202 words
An injector nozzle for filling an endless annular sealing space of predetermined cross-sectional area between two parts in an assembly with a sealing material through a cylindrical nozzle receiving hole provided in the assembly that intersects with the endless annular sealing space, said nozzle insertable at one end into the nozzle receiving hole in the assembly, said one end having an outlet that is faceable to direct the sealing material in one direction into the endless annular sealing space, said one end also having a dam of a configuration and cross-sectional area corresponding to that of the endless annular sealing space that is effective to close off the endless annular sealing space when the outlet is facing in said one direction to prevent the injected sealing material from also being directed in the opposite direction into the endless annular sealing space, and said nozzle having a vent passage in the exterior thereof on the side of said Dam opposite said outlet and extending longitudinally of said nozzle outwardly from the endless annular sealing space past the assembly to provide a separate vent passage in said nozzle receiving hole to vent the endless annular sealing space ahead of the sealing material being injected.
Claim 2
Dependent Claim
202 words
An injector nozzle for filling an endless annular sealing space of predetermined cross-sectional area between two parts in an assembly with a sealing material through a cylindrical nozzle receiving hole provided in the assembly that intersects with the endless annular sealing space, said nozzle insertable at one end into the nozzle receiving hole in the assembly, said one end having an outlet that is faceable to direct the sealing material in one direction into the endless annular sealing space, said one end also having a dam of a configuration and cross-sectional area corresponding to that of the endless annular sealing space that is effective to close off the endless annular sealing space when the outlet is facing in said one direction to prevent the injected sealing material from also being directed in the opposite direction into the endless annular sealing space, and said nozzle having a vent passage in the exterior thereof on the side of said Dam opposite said outlet and extending longitudinally of said nozzle outwardly from the endless annular sealing space past the assembly to provide a separate vent passage in said nozzle receiving hole to vent the endless annular sealing space ahead of the sealing material being injected.
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) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |