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US3282545A Expired / Lapsed US ⏱️ 0.0 years remaining

Handle actuated tripod structure

Assignee: Knox Manufacturing Co
•
Filing: 1965-04-09
•
Granted: 1966-11-01
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Expires: 1985-04-09
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Abstract

No abstract record available.

Inventors

  • 👤 Hillard J Bieschke

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 05:05
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/58

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 247 words
A STAND ADAPTED TO BE MAINTAINED IN AN UPRIGHT POSITION UPON A SUPPORTING SURFACE, COMPRISING: AN ELONGGATED STANDARD; A PLURALITY OF LEGS MEMBERS SWINGABLY MOUNTED ON THE LOWER END PORTION OF THE STANDARD FOR MOVEMENT TOGETHER BETWEEN A CLOSED POSITION ADJACENT THE STANDARD AND A SPREAD SUPPORTING POSITION IN WHICH THE STANDARD IS MAINTAINED UPRIGHTLY; A BRACING LINK EXTENDNG BETWEEN ONE OF THE LEGS MEMBERS AND THE LOWER END PORTION OF THE STANDARD HAVING ONE END PIVOTALLY SECURED TO SAID LOWER END PORTION OF THE STANDARD AND THE OTHER END PIVOTALLY SECURED TO SAID ONE LEG MEMBER; SPRING MEANS POSITIONED AT THE LOWER END PORTION OF THE STANDARD; LEVER MEANS EXTENDING INWARDLY OF THE PIVOT AT THE ONE END OF SAID BRACING LINK SO AS TO BE POSITIONED TO RECEIVE THRUST EXERTED FROM THE SPRING MEANS AND TO TRANSMIT THAT THRUST TO THE BRACING LINK IN A DIRECTION TENDING TO SWING SAID BRACING LINK TOWARD THE STANDARD AND THEREBY FOLD THE LEG MEMBERS AND THE BRACIN LINK ADJACENT TO THE STANDARD; MEANS INTERMEDIATE THE ENDS OF THE STANDARD FOR IMPARTING STRESS TO THE SPRING MEANS WHEN THE LEGS ARE IN SUPPORTING POSITION SO AS TO PROVIDE THRUST UPON THE LEVER MEANS, SAID MEANS HAVING A CONNECTING PORTION OPERATIVELY ENGAGING THE SPRING MEANS, SAID STRESS IMPARTING MEANS BEING MOVABLE ON THE STANDARD TO MOVE THE CONNECTING PORTION SO AS TO DEFORM AND IMPART STRESS TO THE SPRING MEANS; AND LOCKING MEANS FOR HOLDING THE STRESS IMPARTING MEANS IN
Claim 2
Dependent Claim 247 words
A STAND ADAPTED TO BE MAINTAINED IN AN UPRIGHT POSITION UPON A SUPPORTING SURFACE, COMPRISING: AN ELONGGATED STANDARD; A PLURALITY OF LEGS MEMBERS SWINGABLY MOUNTED ON THE LOWER END PORTION OF THE STANDARD FOR MOVEMENT TOGETHER BETWEEN A CLOSED POSITION ADJACENT THE STANDARD AND A SPREAD SUPPORTING POSITION IN WHICH THE STANDARD IS MAINTAINED UPRIGHTLY; A BRACING LINK EXTENDNG BETWEEN ONE OF THE LEGS MEMBERS AND THE LOWER END PORTION OF THE STANDARD HAVING ONE END PIVOTALLY SECURED TO SAID LOWER END PORTION OF THE STANDARD AND THE OTHER END PIVOTALLY SECURED TO SAID ONE LEG MEMBER; SPRING MEANS POSITIONED AT THE LOWER END PORTION OF THE STANDARD; LEVER MEANS EXTENDING INWARDLY OF THE PIVOT AT THE ONE END OF SAID BRACING LINK SO AS TO BE POSITIONED TO RECEIVE THRUST EXERTED FROM THE SPRING MEANS AND TO TRANSMIT THAT THRUST TO THE BRACING LINK IN A DIRECTION TENDING TO SWING SAID BRACING LINK TOWARD THE STANDARD AND THEREBY FOLD THE LEG MEMBERS AND THE BRACIN LINK ADJACENT TO THE STANDARD; MEANS INTERMEDIATE THE ENDS OF THE STANDARD FOR IMPARTING STRESS TO THE SPRING MEANS WHEN THE LEGS ARE IN SUPPORTING POSITION SO AS TO PROVIDE THRUST UPON THE LEVER MEANS, SAID MEANS HAVING A CONNECTING PORTION OPERATIVELY ENGAGING THE SPRING MEANS, SAID STRESS IMPARTING MEANS BEING MOVABLE ON THE STANDARD TO MOVE THE CONNECTING PORTION SO AS TO DEFORM AND IMPART STRESS TO THE SPRING MEANS; AND LOCKING MEANS FOR HOLDING THE STRESS IMPARTING MEANS IN

References Cited (Backward Citations)

US3164348A Cited
US3214121A Cited
US3190597A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-10-31 1970-05-02 1970-11-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-10-31 1974-05-02 1974-11-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-10-31 1978-05-02 1978-11-01 $7700.00 Window Closed / Lapsed

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