Patent US4592481A successfully refreshed from Google Patents.
US4592481A
Expired / Lapsed
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Resilient stopper for integrated circuit magazine
Assignee: STMicroelectronics lnc USA
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Filing: 1985-08-23
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Granted: 1986-06-03
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Expires: 2005-08-23
Abstract
Abstract A resilient stopper (40) for retaining IC's (12) in magazine (10) having a rectangular section (16) of height (h) and width (w) is disclosed. The stopper has a tubular body portion (42) of thickness (t), inner diameter (d) and width substantially (w); and a tab (50) within the stopper of thickness (b) and length (L) extending inwardly from a trailing edge area (46) of the body portion (42); wherein 2t+b>h to effect a positive interference fit of the stopper within the magazine.
Inventors
- 👤 Charles C. Chen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:49
CPC Classifications
H; H05; H05K; H05K13/00; H05K13/0084; Y; Y10; Y10S; Y10S220/00; Y10S220/19
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
78 words
A resilient stopper (40) for retaining IC's (12) in magazine (10) having a rectangular section (16) of height (h) and width (w) comprising: a tubular body portion (42) of thickness (t), inner diameter (d) and width substantially (w); and a tab (50) within the stopper of thickness (b) and length (c) extending inwardly from a trailing edge area (46) of the body portion (42); wherein 2t+b>h to effect a positive interference fit of the stopper within the magazine.
Claim 2
Dependent Claim
78 words
A resilient stopper (40) for retaining IC's (12) in magazine (10) having a rectangular section (16) of height (h) and width (w) comprising: a tubular body portion (42) of thickness (t), inner diameter (d) and width substantially (w); and a tab (50) within the stopper of thickness (b) and length (c) extending inwardly from a trailing edge area (46) of the body portion (42); wherein 2t+b>h to effect a positive interference fit of the stopper within the magazine.
Claim 3
Dependent Claim
25 words
A resilient stopper according to claim 1 wherein c<(pi/2)d so that there is a void (52) in a leading edge area (48) of the stopper.
References Cited (Backward Citations)
US4515269A
Cited
US4487315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-02 | 1989-12-02 | 1990-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-02 | 1993-12-02 | 1994-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-02 | 1997-12-02 | 1998-06-03 | $7700.00 | Window Closed / Lapsed |