US3213490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ejector for molded pieces
Assignee: Individual
•
Filing: 1962-07-26
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Granted: 1965-10-26
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Expires: 1982-07-26
Abstract
No abstract record available.
Inventors
- 👤 Lawrence A Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:34
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/40; Y; Y10; Y10S; Y10S425/00; Y10S425/051
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A DEVICE FOR POSITIVELY REMOVING A MOLDED MEMBER FROM A DIE CAVITY COMPRISING: (A) EJECTOR MEANS FOR ENGAGING SAID MEMBER AND MOVING THE MEMBER IN A FIRST DIRECTION AWAY FROM THE DIE CAVITY, (B) MEANS DISPOSED WITHIN SAID CAVITY TO PROVIDE RESISTANCE TO MOVEMENT OF SAID MEMBER BY SAID EJECTOR MEANS DURING INITIAL MOVEMENT OF SAID MEMBER AWAY FROM SAID CAVITY AND ACTING IN A SECOND DIRECTION OPPOSITE FROM SAID FIRST DIRECTION, (C) RESILIENT MEANS TO SUDDENLY ACCELERATE SAID EJECTOR MEANS IN SAID FIRST DIRECTION UPON RELEASE OF SAID MEANS (B), (D) AND MEANS TO SUDDENLY STOP MOVEMENT OF SAID EJECTOR MEANS WHILE IT IS ACCELERATING.
Claim 2
Independent Claim
106 words
A DEVICE FOR POSITIVELY REMOVING A MOLDED MEMBER FROM A DIE CAVITY COMPRISING: (A) EJECTOR MEANS FOR ENGAGING SAID MEMBER AND MOVING THE MEMBER IN A FIRST DIRECTION AWAY FROM THE DIE CAVITY, (B) MEANS DISPOSED WITHIN SAID CAVITY TO PROVIDE RESISTANCE TO MOVEMENT OF SAID MEMBER BY SAID EJECTOR MEANS DURING INITIAL MOVEMENT OF SAID MEMBER AWAY FROM SAID CAVITY AND ACTING IN A SECOND DIRECTION OPPOSITE FROM SAID FIRST DIRECTION, (C) RESILIENT MEANS TO SUDDENLY ACCELERATE SAID EJECTOR MEANS IN SAID FIRST DIRECTION UPON RELEASE OF SAID MEANS (B), (D) AND MEANS TO SUDDENLY STOP MOVEMENT OF SAID EJECTOR MEANS WHILE IT IS ACCELERATING.
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |