US3269215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety mechanism
Assignee: Individual
•
Filing: 1964-10-15
•
Granted: 1966-08-30
•
Expires: 1984-10-15
Abstract
No abstract record available.
Inventors
- 👤 Lindquist Jonas Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:18
CPC Classifications
F; F16; F16P; F16P3/00; F16P3/02; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/21; Y10T74/2193
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A SAFETY DEVICE OF THE CLASS DESCRIBED COMPRISING (A) A MOUNTING PLATE HAVING A V-SHAPED LEVER ATTACHED THERETO, (B) A MANUALLY OPERATED TREADLE LEVER PIVOTED THERETO, (C) A BLOCKING MEMBER, (D) A SLOT AND PIN CONNECTION BETWEEN THE BLOCKING MEMBER AND THE MOUNTING PLATE, (E) A LATCH BAR PIVOTALLY CONNECTED TO ONE LEG OF THE LEVER AND HAVING A NOTCH FORMED THEREIN FOR LATCHED ENGAGEMENT WITH AN EDGE OF THE BLOCKING MEMBER, (F) A PULL PLATE HAVING PIVOTAL CONNECTION WITH THE LATCH BAR INTERMEDIATE THE LATTER''S END PORTIONS, (G) A SLOT AND PIN CONNECTION PIVOTALLY CONNECTING ONE END PORTION OF THE PULL PLATE TO THE MOUNTING PLATE, (H) THE OPPOSITE END PORTION OF SAID PULL PLATE HAVING A LATERALLY AND UPWARDLY EXTENDING ANGLED END PORTION, (I) AN ELECTROMAGNETIC SOLENOID CARRIED BY SAID MOUNTING PLATE AND HAVING A PLUNGER,
Claim 2
Dependent Claim
138 words
A SAFETY DEVICE OF THE CLASS DESCRIBED COMPRISING (A) A MOUNTING PLATE HAVING A V-SHAPED LEVER ATTACHED THERETO, (B) A MANUALLY OPERATED TREADLE LEVER PIVOTED THERETO, (C) A BLOCKING MEMBER, (D) A SLOT AND PIN CONNECTION BETWEEN THE BLOCKING MEMBER AND THE MOUNTING PLATE, (E) A LATCH BAR PIVOTALLY CONNECTED TO ONE LEG OF THE LEVER AND HAVING A NOTCH FORMED THEREIN FOR LATCHED ENGAGEMENT WITH AN EDGE OF THE BLOCKING MEMBER, (F) A PULL PLATE HAVING PIVOTAL CONNECTION WITH THE LATCH BAR INTERMEDIATE THE LATTER''S END PORTIONS, (G) A SLOT AND PIN CONNECTION PIVOTALLY CONNECTING ONE END PORTION OF THE PULL PLATE TO THE MOUNTING PLATE, (H) THE OPPOSITE END PORTION OF SAID PULL PLATE HAVING A LATERALLY AND UPWARDLY EXTENDING ANGLED END PORTION, (I) AN ELECTROMAGNETIC SOLENOID CARRIED BY SAID MOUNTING PLATE AND HAVING A PLUNGER,
References Cited (Backward Citations)
US1270578A
Cited
GB625000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |