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US4886289A Expired / Lapsed US ⏱️ 0.0 years remaining

Tandem baby carriage with facing seats

Assignee: ORIENTAL TRADING Co INC A CORP OF AB
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Filing: 1988-03-31
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Granted: 1989-12-12
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Expires: 2008-03-31
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Abstract

Abstract A foldable two seat face-to-face tandem baby carriage includes a pair of wheeled front legs, a pair of wheeled rear legs, and, two pairs of horizontal longitudinal bars extending between the legs. A U-shaped push handle connects pivotally with the rear of the upper bars, and the free ends of the push handle substantially abut the rear legs about midway along the length. Locking means interengage the push handle with the legs in the extended position and bars in the horizontal position to provide a tandem seating construction with seats and backrests facing each other. Folding is effected when the backrests are parallel and an additional locking slot is provided in a support for anchoring the forward backrest in the parallel position. Release of the lock by foot pressure on a transverse bar extending between the rear legs causes the push handle to move downwardly and forwardly and the two legs to collapse and fold towards each other to be substantially parallel with the push handle in the folded position. The two sets of parallel longitudinal bars collapse to be substantially parallel and towards each other in the folded position. A single action permits folding and unfolding of the tandem carriage.

Inventors

  • 👤 David T. Yee
  • 👤 Eric Lin
  • 👤 Fang-Tung Yee

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 11:26
CPC Classifications
B; B62; B62B; B62B7/00; B62B7/04; B62B7/06; B62B7/08; B62B7/008

Claims Analysis

Total Claims: 21
Claim 1
Independent Claim 276 words
A foldable face-to-face tandem baby carriage comprising a pair of front legs having wheels mounted at the lower ends, a pair of rear legs having wheels mounted at the lower ends, a first pair of parallel bars extending between each respective front leg and rear leg and pivotally mounted near the upper ends of the respective front leg and rear leg, a second pair of lower parallel bars extending between each respective front leg and rear leg and pivotally mounted between the top and the bottom of the front leg, the second pair of parallel bars being substantially parallel with the first pair of bars, a substantially U-shaped push handle, said push handle having free ends, said free ends of the handle being pivotally connected near the ends of the second pair of bars remote from the front legs, a lock between the rear legs and the push handle, a transverse foot bar pivotally extending between the rear legs and operable for disengaging the lock to thereby permit folding of said carriage a tandem pair of seats and backrests pivotally extending between the pairs of bars and forming said face to face seating, the backrests being pivotally collapsible relative to the seats about a transverse pivot, such that in an extended operational position the first and second parallel bars are substantially horizontal, and in a folded position the legs fold towards each other, the first and second pairs of parallel bars fold together, and the backrests fold downwardly towards the respective seats between the folded parallel bars, and wherein the seating of the tandem pair of seats and backrests face each other in the operational position.
Claim 2
Dependent Claim 276 words
A foldable face-to-face tandem baby carriage comprising a pair of front legs having wheels mounted at the lower ends, a pair of rear legs having wheels mounted at the lower ends, a first pair of parallel bars extending between each respective front leg and rear leg and pivotally mounted near the upper ends of the respective front leg and rear leg, a second pair of lower parallel bars extending between each respective front leg and rear leg and pivotally mounted between the top and the bottom of the front leg, the second pair of parallel bars being substantially parallel with the first pair of bars, a substantially U-shaped push handle, said push handle having free ends, said free ends of the handle being pivotally connected near the ends of the second pair of bars remote from the front legs, a lock between the rear legs and the push handle, a transverse foot bar pivotally extending between the rear legs and operable for disengaging the lock to thereby permit folding of said carriage a tandem pair of seats and backrests pivotally extending between the pairs of bars and forming said face to face seating, the backrests being pivotally collapsible relative to the seats about a transverse pivot, such that in an extended operational position the first and second parallel bars are substantially horizontal, and in a folded position the legs fold towards each other, the first and second pairs of parallel bars fold together, and the backrests fold downwardly towards the respective seats between the folded parallel bars, and wherein the seating of the tandem pair of seats and backrests face each other in the operational position.
Claim 3
Dependent Claim 60 words
A carriage as claimed in claim 1 wherein the tandem seat at the rear includes a backrest inclined rearwardly in the operational position and the tandem seat at the front includes a backrest inclined forwardly in the operational position, and wherein the front backrest is inclined rearwardly and parallel to the rear backrest in a non-operational position to permit folding.
Claim 4
Dependent Claim 82 words
A carriage as claimed in claim 1 including at least a pair of struts, with each said strut extending between a respective bar of the front pair of parallel bars and the respective bar of the second pair of parallel bars, the struts being pivotally mounted relative to the parallel bars wherein in the extended operative position the struts are forwardly extended and in the folded position the struts are adjacent the rear legs, the struts being located near the front legs.
Claim 5
Dependent Claim 38 words
A carriage as claimed in claim 3 wherein the struts have a pivot connection with at least one of the backrests so as to cooperate with and cause the backrest to fold downwardly when in the folded position.
Claim 6
Dependent Claim 20 words
A carriage as claimed in claim 4 wherein the struts cooperate in the same manner with the forwardly located backrest.
Claim 7
Dependent Claim 58 words
A carriage as claimed in claim 3 wherein the backrests include pivotal mountings between the respective bars of the lower parallel bars, the pivotal mounting including an adjustable locking element for permitting the adjustment of the backrest inclination, and wherein the locking element for the forward backrest permits the backrest to be locked parallel with the rear backrest.
Claim 8
Dependent Claim 51 words
A carriage as claimed in claim 1 wherein the transverse bar is operative under foot pressure to disengage the lock and wherein downward pressure on the push handle and drawing-in action on the wheel ends of the front legs acts to draw the parallel bars and legs into the folded position.
Claim 9
Dependent Claim 56 words
A carriage as claimed in claim 7 including a catch, said catch having a slot in its free end, said free end capable of receiving a protruding stud on the outside face of the forward leg so as to hold the push handle together with at least one of the front legs in the folded position.
Claim 10
Dependent Claim 24 words
A carriage as claimed in claim 8 including snapped-on material mounted on the first pair of parallel bars to provide sidewalls for the seats.
Claim 11
Dependent Claim 20 words
The carriage as claimed in claim 6 wherein the backrests are pivotally collapsible forwardly and rearwardly relative to the seats.
Claim 12
Dependent Claim 27 words
A carriage as claimed in 1 including footrests mounted ahead of and below the seats, the footrests being mounted transversely between the second pair of parallel bars.
Claim 13
Dependent Claim 21 words
A carriage as claimed in claim 1 including foldable canopies hingedly mounted so as to extend selectively over the respective seats.
Claim 14
Dependent Claim 39 words
A carriage as claimed in claim 1 including a foldable canopy removably mounted for extending over the rear seat and a foldable canopy removably mounted on a frame posterior to the front seat for extending over the front seat.
Claim 15
Dependent Claim 338 words
A foldable face-to-face tandem baby carriage comprising a pair of front legs having wheels mounted at the lower ends, a pair of rear legs having wheels mounted at the lower ends, a first pair of longitudinal parallel bars extending between each respective front leg and rear leg and pivotally mounted near the upper ends of the respective front leg and rear leg, a second pair of longitudinal parallel bars extending between each respective front leg and rear leg and pivotally mounted between the top and the bottom of the front leg, the second pair of parallel bars being substantially parallel with the first pair of longitudinal bars, a substantially U-shaped push handle, the free ends of the handle being pivotally connected near the ends of the second pair of longitudinal bars remote from the front legs, a lock between the rear legs and the push handle, a transverse foot bar pivotally extending between the rear legs and operable for disengaging the lock to thereby permit folding of said carriage, the lock including a short limb pivotally connected between the free end of the push handle and the rear legs, the limb having a pin for cooperation with a slotted hook limb attached to the transverse bar, a tandem seating pair having seats and backrests pivotally extending between the first pair of bars from the front to the back, the backrests being connected to the second pair of longitudinal parallel bars so as to be pivotally adjustable and collapsible relative to the seats about a transverse pivot, the transverse pivot being located on the second pair of longitudinal parallel bars, such that in an extended operational position the first and second parallel bars are substantially horizontal and in a folded position, the legs fold towards each other, the first and second pairs of parallel bars collapse together, and the backrests fold downwardly towards the respective seats between the collapsed parallel bars, and wherein the seats and backrests of the tandem seating pair face each other in the operational position.
Claim 16
Dependent Claim 338 words
A foldable face-to-face tandem baby carriage comprising a pair of front legs having wheels mounted at the lower ends, a pair of rear legs having wheels mounted at the lower ends, a first pair of longitudinal parallel bars extending between each respective front leg and rear leg and pivotally mounted near the upper ends of the respective front leg and rear leg, a second pair of longitudinal parallel bars extending between each respective front leg and rear leg and pivotally mounted between the top and the bottom of the front leg, the second pair of parallel bars being substantially parallel with the first pair of longitudinal bars, a substantially U-shaped push handle, the free ends of the handle being pivotally connected near the ends of the second pair of longitudinal bars remote from the front legs, a lock between the rear legs and the push handle, a transverse foot bar pivotally extending between the rear legs and operable for disengaging the lock to thereby permit folding of said carriage, the lock including a short limb pivotally connected between the free end of the push handle and the rear legs, the limb having a pin for cooperation with a slotted hook limb attached to the transverse bar, a tandem seating pair having seats and backrests pivotally extending between the first pair of bars from the front to the back, the backrests being connected to the second pair of longitudinal parallel bars so as to be pivotally adjustable and collapsible relative to the seats about a transverse pivot, the transverse pivot being located on the second pair of longitudinal parallel bars, such that in an extended operational position the first and second parallel bars are substantially horizontal and in a folded position, the legs fold towards each other, the first and second pairs of parallel bars collapse together, and the backrests fold downwardly towards the respective seats between the collapsed parallel bars, and wherein the seats and backrests of the tandem seating pair face each other in the operational position.
Claim 17
Dependent Claim 44 words
A carriage as claimed in claim 14 including snapped-on material mounted on the first parallel bars to provide sidewalls for the carriage, the snapped-on material forming part of seats and backrests for each seat and being adapted to snap together to be selectively separable.
Claim 18
Dependent Claim 20 words
A carriage as claimed in claim 15 wherein the seats and backrests include frames with removable material on the frames.
Claim 19
Dependent Claim 107 words
A carriage as claimed in claim 16 wherein at least a pair of support struts extend respectively between the pivot mounting of the top of each rear leg with the first pair of longitudinal bars and the respective bar of the second pair of parallel bars, the struts being pivotally mounted relative to the second parallel bars and being pivotally mounted about the first parallel bar, such that in the extended operative position the struts are forwardly extended and are substantially parallel with the front legs, and in the folded position the struts are adjacent the rear legs, and the struts are located near the front legs.
Claim 20
Dependent Claim 407 words
A foldable tandem baby carriage comprising a pair of front legs having wheels mounted at the lower ends, a pair of rear legs having wheels mounted at the lower ends, a first pair of longitudinal parallel bars extending between each respective front leg and rear leg and pivotally mounted near the upper ends of the respective front leg and rear leg, a second pair of longitudinal parallel bars extending between each respective front leg and rear leg and pivotally mounted between the top and the bottom of the front leg, the second pair of parallel bars being substantially parallel with the first pair of longitudinal bars, a substantially U-shaped push handle, said push handle having free ends, said free ends of the handle being pivotally connected with the ends of the second pair of longitudinal bars remote from the front legs, tandem seating having a pair of tandem seats and backrests pivotally extending between the first pair of bars from the front to the back, the backrests being connected to the second pair of longitudinal parallel bars so as to be pivotally adjustable and collapsible relative to the seats about a transverse pivot, the transverse pivot being located on the second pair of longitudinal parallel bars, such that in an extended operational position the first and second parallel bars are substantially horizontal and in a folded position, the legs fold towards each other, the first and second pair of parallel bars collapse together, and the backrests fold downwardly towards the respective seats between the collapsed parallel bars, support struts extending respectively between the pivot mounting of the top of each rear leg with the first pair of longitudinal bars and the respective bar of the second pair of parallel bars, the struts being pivotally mounted relative to the second parallel bars, and being pivotally mounted about the first parallel bar wherein in the extended operative position the struts are forwardly extended and are substantially parallel with the front legs, and in the folded position the struts are adjacent the rear legs, and a lock between the rear legs and the push handle, a transverse foot bar pivotally extending between the rear legs and operable for disengaging the lock to thereby permit folding of said carriage upon downward pressure on the push handle and raising of the parallel bars towards the push handle, and wherein the seating of the tandem pair face each other in the operational position.
Claim 21
Dependent Claim 407 words
A foldable tandem baby carriage comprising a pair of front legs having wheels mounted at the lower ends, a pair of rear legs having wheels mounted at the lower ends, a first pair of longitudinal parallel bars extending between each respective front leg and rear leg and pivotally mounted near the upper ends of the respective front leg and rear leg, a second pair of longitudinal parallel bars extending between each respective front leg and rear leg and pivotally mounted between the top and the bottom of the front leg, the second pair of parallel bars being substantially parallel with the first pair of longitudinal bars, a substantially U-shaped push handle, said push handle having free ends, said free ends of the handle being pivotally connected with the ends of the second pair of longitudinal bars remote from the front legs, tandem seating having a pair of tandem seats and backrests pivotally extending between the first pair of bars from the front to the back, the backrests being connected to the second pair of longitudinal parallel bars so as to be pivotally adjustable and collapsible relative to the seats about a transverse pivot, the transverse pivot being located on the second pair of longitudinal parallel bars, such that in an extended operational position the first and second parallel bars are substantially horizontal and in a folded position, the legs fold towards each other, the first and second pair of parallel bars collapse together, and the backrests fold downwardly towards the respective seats between the collapsed parallel bars, support struts extending respectively between the pivot mounting of the top of each rear leg with the first pair of longitudinal bars and the respective bar of the second pair of parallel bars, the struts being pivotally mounted relative to the second parallel bars, and being pivotally mounted about the first parallel bar wherein in the extended operative position the struts are forwardly extended and are substantially parallel with the front legs, and in the folded position the struts are adjacent the rear legs, and a lock between the rear legs and the push handle, a transverse foot bar pivotally extending between the rear legs and operable for disengaging the lock to thereby permit folding of said carriage upon downward pressure on the push handle and raising of the parallel bars towards the push handle, and wherein the seating of the tandem pair face each other in the operational position.

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-12-11 1993-06-12 1993-12-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-12-11 1997-06-12 1997-12-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-12-11 2001-06-12 2001-12-12 $7700.00 Window Closed / Lapsed

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