US4506928A — Baby chair — Luxuse Patents

Claim 1

Independent Claim 303 words

A baby chair of the type which is suspendable from the edge of a table, which has a seat bottom and a seat back, the seat bottom having a front edge, side edges and a back edge, the side edges intersecting the back edge at back corners and intersecting the front edge at front corners, the chair being foldable for storage, comprising: a pair of under-table supports, each extending from a respective back corner, parallel to the side edges, and past the front edge of said seat bottom, and being turned upward to a vertical table-abutting end; a pair of plates, each fixed to the seat back and extending forward in a plane parallel to the sides of the chair; a pair of arm rests, each rest being pivotally attached by a plate pivot to one of said plates and extending forward parallel to the sides and past the front edge of the seat bottom and having a table-tangent end; a back pair of vertical links, the upper end of each link pivoted on one of the plate pivots, and the lower end pivoted to one of the supports near a back corner of the seat bottom; a front pair of vertical links, the upper end of each link pivioted on one of the arm rests and the lower end pivoted to one of the supports near a front corner of the seat bottom; a pair of locking bars, each having a lower end pivoted to a respective one of said supports between the front link and the table-abutting end, the bars extending beyond a plane which is parallel to the seat bottom and which includes the abutting ends; and biasing means at the lower end of each said locking bar to bias the bar in rotation towards the respective table abutting end.

Claim 2

Dependent Claim 303 words

A baby chair of the type which is suspendable from the edge of a table, which has a seat bottom and a seat back, the seat bottom having a front edge, side edges and a back edge, the side edges intersecting the back edge at back corners and intersecting the front edge at front corners, the chair being foldable for storage, comprising: a pair of under-table supports, each extending from a respective back corner, parallel to the side edges, and past the front edge of said seat bottom, and being turned upward to a vertical table-abutting end; a pair of plates, each fixed to the seat back and extending forward in a plane parallel to the sides of the chair; a pair of arm rests, each rest being pivotally attached by a plate pivot to one of said plates and extending forward parallel to the sides and past the front edge of the seat bottom and having a table-tangent end; a back pair of vertical links, the upper end of each link pivoted on one of the plate pivots, and the lower end pivoted to one of the supports near a back corner of the seat bottom; a front pair of vertical links, the upper end of each link pivioted on one of the arm rests and the lower end pivoted to one of the supports near a front corner of the seat bottom; a pair of locking bars, each having a lower end pivoted to a respective one of said supports between the front link and the table-abutting end, the bars extending beyond a plane which is parallel to the seat bottom and which includes the abutting ends; and biasing means at the lower end of each said locking bar to bias the bar in rotation towards the respective table abutting end.

Claim 3

Dependent Claim 27 words

A chair as in claim 1 wherein each said plate has a top edge turned perpendicularly outward from the seat back to form an arm rest stop.

Claim 4

Dependent Claim 26 words

A chair as in claim 2 wherein at least one of the arm rests has safety pin means for latching the arm rest to the plate.

Claim 5

Dependent Claim 87 words

A chair in claim 3 wherein there is a hold through the arm rest and the safety pin means includes a pin having a head with a larger diameter than the hole, and a shaft extending through and beyond the hole, and biasing means to urge said shaft towards said plate, and wherein said plate has curb means to prevent the plate from sliding relative to the shaft until the pin head is pulled to overcome the biasing means and to retract the shaft from the plate.

Claim 6

Dependent Claim 85 words

A chair as in claim 1 further including a pair of diagonal links, each diagonal link having a first end pivotally connected to a respective one of said plates and a second end pivotally connected mid-way between the ends of a respective one of said front links, said diagonal links coupling said front pair of vertical links to the seat back so movement of said seat back relative to said under-table supports causes corresponding pivotal movement of said arm rests relative to said under-table supports.

Claim 7

Dependent Claim 28 words

A chair as in claim 1 wherein said table abutting ends, said tangent ends, and said locking bars each have table touching ends covered with non-abrasive gripping material.

Claim 8

Dependent Claim 26 words

A chair as in claim 1 wherein said pair of under-table supports are connected in one continuous piece around the back edge of the seat bottom.

Claim 9

Dependent Claim 20 words

A chair as in claim 1 wherein said arm rests are connected in one continuous piece around the seat back.

Claim 10

Dependent Claim 26 words

A chair as in claim 1 wherein said seat back has a reinforcement, and wherein said plates are attached to the seat back through the reinforcement.

Claim 11

Dependent Claim 32 words

A chair as in claim 1 further comprising a safety harness engaging the seat back and having a buckle whereby the harness may be fastened to hold a child in the chair.

Claim 12

Dependent Claim 19 words

A chair as in claim 1 made of metal and plastic except for the seat bottom and seat back.

Claim 13

Dependent Claim 89 words

In a baby chair having arm rests for engaging the upper surface of a table top, a seat bottom and under table supports for engaging the lower surface of the table top at support ends thereof for suspending the chair from the edge of the table top, the improvement comprising: a pair of locking bars, each having a lower end pivoted to a respective one of the supports and extending upward beyond a plane which is parallel to the seat bottom and which includes the ends of the supports.

Claim 14

Dependent Claim 89 words

In a baby chair having arm rests for engaging the upper surface of a table top, a seat bottom and under table supports for engaging the lower surface of the table top at support ends thereof for suspending the chair from the edge of the table top, the improvement comprising: a pair of locking bars, each having a lower end pivoted to a respective one of the supports and extending upward beyond a plane which is parallel to the seat bottom and which includes the ends of the supports.

Claim 15

Dependent Claim 38 words

The baby chair of claim 12 further comprising biasing means at the lower end of each locking bar to bias the bar in rotation upwardly towards the table top lower surface and outwardly towards the respective support end.

Claim 16

Dependent Claim 121 words

A baby chair of the type for mounting to the edge of a table top, the table top having upper and lower surfaces, comprising: a chair structure including a seat and a seat back attached to the seat; an arm attached to and extending from the chair structure and having portions configured to engage the upper table top surface; an under-table support attached to and extending from the chair structure and having an outer part configured to engage the lower table top surface; and a locking bar pivotally mounted to said under-table support and having a distal end for engaging the lower table top surface at an acute angle to the vertical to secure the baby chair to the table top.

Claim 17

Dependent Claim 121 words

A baby chair of the type for mounting to the edge of a table top, the table top having upper and lower surfaces, comprising: a chair structure including a seat and a seat back attached to the seat; an arm attached to and extending from the chair structure and having portions configured to engage the upper table top surface; an under-table support attached to and extending from the chair structure and having an outer part configured to engage the lower table top surface; and a locking bar pivotally mounted to said under-table support and having a distal end for engaging the lower table top surface at an acute angle to the vertical to secure the baby chair to the table top.

Claim 18

Dependent Claim 47 words

The baby chair of claim 14 further comprising means for biasing said locking bar to pivot said distal end upwardly toward the table top lower surface and outwardly away from said chair structure, so said distal end of said locking bar engages the table top lower surface.

Claim 19

Dependent Claim 12 words

The baby chair of claim 14 further comprising first and second arms.

Claim 20

Dependent Claim 19 words

The baby chair of claim 16 wherein said first and second arms generally overlie first and second under-table supports.

Claim 21

Dependent Claim 20 words

The baby chair of claim 17 including first and second locking bars mounted to respective first and second under-table supports.

Claim 22

Dependent Claim 40 words

The baby chair of claim 14 wherein said table top surface engaging portions are horizontally positioned between said outer part of said under-table support and said locking bar distal end when the baby chair is mounted to the table top.

Claim 23

Dependent Claim 87 words

A baby chair of the type for mounting to the edge of a table top having upper and lower surfaces, comprising: a chair structure; a first arm attached to and extending from said chair structure for engagement of said upper surface; a second arm attached to and extending from said chair structure for the engagement of said lower surface; and locking means pivotally mounted to said second arm for further engagement of said lower surface to ensure the maintenance of the baby chair to the table top.

Claim 24

Dependent Claim 87 words

A baby chair of the type for mounting to the edge of a table top having upper and lower surfaces, comprising: a chair structure; a first arm attached to and extending from said chair structure for engagement of said upper surface; a second arm attached to and extending from said chair structure for the engagement of said lower surface; and locking means pivotally mounted to said second arm for further engagement of said lower surface to ensure the maintenance of the baby chair to the table top.

Claim 25

Dependent Claim 44 words

A baby chair in accordance with claim 20 and further characterized by said chair structure including a seat and a seat back attached to the seat, said first arm being secured to said seat back and said second arm being secured to said seat.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1988-03-25	1988-09-24	1989-03-26	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1992-03-25	1992-09-24	1993-03-26	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1996-03-25	1996-09-24	1997-03-26	$7700.00	Window Closed / Lapsed

Baby chair

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