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US3296741A Expired / Lapsed US ⏱️ 0.0 years remaining

Spring operated gate

Assignee: Individual
•
Filing: 1964-05-22
•
Granted: 1967-01-10
•
Expires: 1984-05-22
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Abstract

No abstract record available.

Inventors

  • 👤 Elmont C Lubmann

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 15:31
CPC Classifications
E; E06; E06B; E06B11/00; E06B11/02; E06B11/022; E06B11/027; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1044; Y10T292/1045; Y10T292/1049

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 181 words
A SELF-CLOSING GATE STRUCTURE COMPRISING A PAIR OF UPRIGHT POSTS DISPOSED IN SPACED ALIGNED RELATION, A GATE MEMBER DISPOSED BETWEEN THE POSTS, MEANS AT THE LOWER EDGE OF THE GATE MEMBER HINGEDLY SUPPORTING THE GATE MEMBER FOR PIVOTAL MOVEMENT ABOUT A HORIZONTAL AXIS FROM A VERTICAL CLOSED POSITION BETWEEN THE POSTS TO A HORIZONTAL OPEN POSITION, SPRING MEANS INTERCONNECTING THE GATE MEMBER AND AT LEAST ONE OF SAID POSTS FOR RETURNING THE GATE MEMBER TO A VERTICAL POSITION, A STATIONARY SUPPORT SPACED FROM ONE OF THE POSTS, AND SPRING MEANS INTERCONNECTING THE GATE MEMBER AND SAID STATIONARY SUPPORT FOR DAMPENING OSCILLATION OF THE GATE WHEN IT RETURNS TO ITS CLOSED POSITION, SAID DAMPENING SPRING MEANS INCLUDING A PAIR OF OPPOSITELY EXTENDING COIL SPRINGS ATTACHED TO THE GATE MEMBER ADJACENT THE LOWER EDGE THEREOF, AND PIVOTAL ARMS MOUNTED ON THE STATIONARY SUPPORT AND ENGAGING THE ENDS OF THE SPRINGS, AND MEANS LIMITING THE INWARD PIVOTAL MOVEMENT OF THE ARMS WHEREBY SPRINGS ON OPPOSITE SIDES OF THE GATE WILL BE TENSIONED AS THE GATE OSCILLATES TO OPPOSITE SIDES OF ITS VERTICAL CLOSED POSITION.
Claim 2
Dependent Claim 181 words
A SELF-CLOSING GATE STRUCTURE COMPRISING A PAIR OF UPRIGHT POSTS DISPOSED IN SPACED ALIGNED RELATION, A GATE MEMBER DISPOSED BETWEEN THE POSTS, MEANS AT THE LOWER EDGE OF THE GATE MEMBER HINGEDLY SUPPORTING THE GATE MEMBER FOR PIVOTAL MOVEMENT ABOUT A HORIZONTAL AXIS FROM A VERTICAL CLOSED POSITION BETWEEN THE POSTS TO A HORIZONTAL OPEN POSITION, SPRING MEANS INTERCONNECTING THE GATE MEMBER AND AT LEAST ONE OF SAID POSTS FOR RETURNING THE GATE MEMBER TO A VERTICAL POSITION, A STATIONARY SUPPORT SPACED FROM ONE OF THE POSTS, AND SPRING MEANS INTERCONNECTING THE GATE MEMBER AND SAID STATIONARY SUPPORT FOR DAMPENING OSCILLATION OF THE GATE WHEN IT RETURNS TO ITS CLOSED POSITION, SAID DAMPENING SPRING MEANS INCLUDING A PAIR OF OPPOSITELY EXTENDING COIL SPRINGS ATTACHED TO THE GATE MEMBER ADJACENT THE LOWER EDGE THEREOF, AND PIVOTAL ARMS MOUNTED ON THE STATIONARY SUPPORT AND ENGAGING THE ENDS OF THE SPRINGS, AND MEANS LIMITING THE INWARD PIVOTAL MOVEMENT OF THE ARMS WHEREBY SPRINGS ON OPPOSITE SIDES OF THE GATE WILL BE TENSIONED AS THE GATE OSCILLATES TO OPPOSITE SIDES OF ITS VERTICAL CLOSED POSITION.

References Cited (Backward Citations)

US1503209A Cited
US2007071A Cited
US2024063A Cited
GB452783A Cited
US3000596A Cited
US3042435A Cited
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US3170258A Cited
US3194213A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-01-09 1970-07-11 1971-01-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-01-09 1974-07-11 1975-01-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-01-09 1978-07-11 1979-01-10 $7700.00 Window Closed / Lapsed

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