Patent US1255872A successfully refreshed from Google Patents.
Patent US3319986A successfully refreshed from Google Patents.
US3319986A
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Top latch unit
Assignee: Newfrey LLC
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Filing: 1965-02-18
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Granted: 1967-05-16
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Expires: 1985-02-18
Abstract
No abstract record available.
Inventors
- 👤 Walter O Balducci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:45
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/10; E05B65/1006; E05B65/1013; E05B63/00; E05B63/18; E05B63/20; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0908; Y10T292/096; Y10T292/1037; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5159
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A LATCH UNIT INCLUDING A FRAME, A LATCHBOLT PIVOTALLY MOUNTED ON SAID FRAME AND MOVABLE BETWEEN PROJECTED AND RETRACTED POSITIONS, A SLIDE VERTICALLY RECIPROCABLY MOUNTED IN SAID FRAME AND HAVING A SIDEWALL WITH A CAM SLOT THEREIN, A PROJECTION ON SAID LATCHBOLT EXTENDING INTO SAID CAM SLOT WHEREBY TO CAUSE MOVEMENT OF SAID LATCHBOLT BETWEEN ITS PROJECTED AND RETRACTED POSITIONS AS SAID SLIDE IS RECIPROCATED IN SAID FRAME, ABUTMENT MEANS ON SAID SLIDE ENGAGEABLE WITH SAID PROJECTION ON THE LATCHBOLT FOR RETAINING SAID LATCHBOLT IN RETRACTED POSITION, A NOSE PORTION ON SAID LATCHBOLT, AND A MEMBER ADJUSTABLY MOUNTED UPON SAID FRAME AND HAVING A NOTCH WHICH IN ONE POSITION OF SAID MEMBER RECEIVES SAID NOSE ON THE LATCHBOLT TO PERMIT ENGAGEMENT OF SAID ABUTMENT MEANS ON THE SLIDE WITH SAID PROJECTION AND A STOP PORTION WHICH IN ANOTHER POSITION OF SAID MEMBER IS ENGAGED BY THE NOSE ON THE LATCHBOLT TO PREVENT ENGAGEMENT OF SAID PROJECTION ON THE LATCHBOLT WITH THE ABUTMENT MEANS ON THE SLIDE.
Claim 2
Dependent Claim
166 words
A LATCH UNIT INCLUDING A FRAME, A LATCHBOLT PIVOTALLY MOUNTED ON SAID FRAME AND MOVABLE BETWEEN PROJECTED AND RETRACTED POSITIONS, A SLIDE VERTICALLY RECIPROCABLY MOUNTED IN SAID FRAME AND HAVING A SIDEWALL WITH A CAM SLOT THEREIN, A PROJECTION ON SAID LATCHBOLT EXTENDING INTO SAID CAM SLOT WHEREBY TO CAUSE MOVEMENT OF SAID LATCHBOLT BETWEEN ITS PROJECTED AND RETRACTED POSITIONS AS SAID SLIDE IS RECIPROCATED IN SAID FRAME, ABUTMENT MEANS ON SAID SLIDE ENGAGEABLE WITH SAID PROJECTION ON THE LATCHBOLT FOR RETAINING SAID LATCHBOLT IN RETRACTED POSITION, A NOSE PORTION ON SAID LATCHBOLT, AND A MEMBER ADJUSTABLY MOUNTED UPON SAID FRAME AND HAVING A NOTCH WHICH IN ONE POSITION OF SAID MEMBER RECEIVES SAID NOSE ON THE LATCHBOLT TO PERMIT ENGAGEMENT OF SAID ABUTMENT MEANS ON THE SLIDE WITH SAID PROJECTION AND A STOP PORTION WHICH IN ANOTHER POSITION OF SAID MEMBER IS ENGAGED BY THE NOSE ON THE LATCHBOLT TO PREVENT ENGAGEMENT OF SAID PROJECTION ON THE LATCHBOLT WITH THE ABUTMENT MEANS ON THE SLIDE.
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) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |