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US3845728A Expired / Lapsed US ⏱️ 0.0 years remaining

Folding table

Assignee: Castelli SpA
•
Filing: 1972-09-14
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Granted: 1974-11-05
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Expires: 1992-09-14
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Abstract

Abstract A folding table comprising four legs carrying a upper table-top provided with longitudinal side members, characterized by the fact that each pair of legs of a transverse side of the table are securely braced together at their upper ends by a transverse beam and wherein this unit comprising said two legs and the bracing beam is pivotally linked by means of coaxial pins to said tabletop in close proximity to its adjacent transverse side, between said table-top and each unit being provided releasable locking devices adapted for locking said parts one to another in their operative mutual position, said locking devices being provided with means for moving in unison the locking means associated to a pair of legs into or out of their operative engagement.

Inventors

  • 👤 Giancarlo Prof Piretti

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 17:30
CPC Classifications
A; A47; A47B; A47B3/00; A47B3/08; A47B3/0809; A47B3/0815; A47B2200/00; A47B2200/0011; A47B2200/002; A47B2200/0033

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 290 words
A folding table comprising a substantially planar table top having a tubular longitudinal side bar extending along opposed edges thereof, two opposed pairs of legs for supporting said table top, each pair of legs being securely braced together by a transverse beam and pivotally connected as a unit to said table top so as to fold to a stored position beneath the table top, a housing inserted into the ends of said tubular longitudinal side bars, each leg of a unit pair of legs being pivotally connected to a housing inserted in an end of one of said side bars by coaxial pins, and first locking means stored within each housing cooperating with second locking means on the upper ends of each of said legs for preventing said leg units from pivoting about said coaxial pins so as to lock said leg units in an upright position to support said table top, said first locking means including a hook arranged at the end of an arm of a lever pivoted intermediate its length about a pin in the housing having its axis parallel to the pivot axis of an adjacent unit pair of legs, the other arm of said lever being connected to a strong spring which is so positioned to maintain said hooked arm in engagement with said second locking means which includes a cooperating hook end provided at the upper portion of the adjacent leg, and means for rotating said levers against the bias of the associated springs so as to cause the mutual disengagement of the hooks on said first and second locking means in order to allow each unit pair of legs to be turned until they abut against the lower surface of the table top.
Claim 2
Dependent Claim 290 words
A folding table comprising a substantially planar table top having a tubular longitudinal side bar extending along opposed edges thereof, two opposed pairs of legs for supporting said table top, each pair of legs being securely braced together by a transverse beam and pivotally connected as a unit to said table top so as to fold to a stored position beneath the table top, a housing inserted into the ends of said tubular longitudinal side bars, each leg of a unit pair of legs being pivotally connected to a housing inserted in an end of one of said side bars by coaxial pins, and first locking means stored within each housing cooperating with second locking means on the upper ends of each of said legs for preventing said leg units from pivoting about said coaxial pins so as to lock said leg units in an upright position to support said table top, said first locking means including a hook arranged at the end of an arm of a lever pivoted intermediate its length about a pin in the housing having its axis parallel to the pivot axis of an adjacent unit pair of legs, the other arm of said lever being connected to a strong spring which is so positioned to maintain said hooked arm in engagement with said second locking means which includes a cooperating hook end provided at the upper portion of the adjacent leg, and means for rotating said levers against the bias of the associated springs so as to cause the mutual disengagement of the hooks on said first and second locking means in order to allow each unit pair of legs to be turned until they abut against the lower surface of the table top.

References Cited (Backward Citations)

FR752108A Cited
GB428289A Cited
US2204081A Cited
US2232205A Cited
US2805906A Cited
US3017153A Cited
US3033630A Cited
US3255721A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-11-04 1978-05-06 1978-11-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-11-04 1982-05-06 1982-11-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-11-04 1986-05-06 1986-11-05 $7700.00 Window Closed / Lapsed

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