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Patent US3211371A successfully refreshed from Google Patents.
US7731295B2
Active / In Force
US
⏱️ 1.8 years remaining
Chair having adjustable weight proportion accepting elements
Assignee: Individual
•
Filing: 2008-09-05
•
Granted: 2010-06-08
•
Expires: 2028-09-05
Abstract
Abstract A seat includes a tray, a net mounted on the tray and a supporting device provided between the tray and the net. Thus, when a user sits on the seat, the net takes a proportion of the user's weight while the supporting device takes another proportion of the user's weight.
Inventors
- 👤 Peter Lin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:36
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/36; A47C7/40; A47C31/00; A47C31/02; A47C7/02; A47C7/28; A47C7/282
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
149 words
A seat comprising: a tray, a net mounted on the tray; and a supporting device provided between the tray and the net so that when a user sits on the seat, the net takes a proportion of the user's weight while the supporting device takes another proportion of the user's weight, wherein the supporting device comprises a plate with a portion connected to the tray and another portion for contact with the net when the user sits on the seat; and an adjusting element for adjusting the height of the plate on the tray, wherein the adjusting element comprises an axle rotationally mounted on the tray, a cam and a positioning element connected to the axle and located beneath the plate, and a block mounted in the interior of the tray and interacted with the positioning element for retaining the adjusting element in a desired one of several positions.
Claim 2
Dependent Claim
149 words
A seat comprising: a tray, a net mounted on the tray; and a supporting device provided between the tray and the net so that when a user sits on the seat, the net takes a proportion of the user's weight while the supporting device takes another proportion of the user's weight, wherein the supporting device comprises a plate with a portion connected to the tray and another portion for contact with the net when the user sits on the seat; and an adjusting element for adjusting the height of the plate on the tray, wherein the adjusting element comprises an axle rotationally mounted on the tray, a cam and a positioning element connected to the axle and located beneath the plate, and a block mounted in the interior of the tray and interacted with the positioning element for retaining the adjusting element in a desired one of several positions.
Claim 3
Dependent Claim
56 words
The seat according to claim 1 wherein the adjusting element comprises a threaded bolt and the plate defines an aperture, and the tray defines a screw hole for receiving the threaded bolt inserted through the aperture of the plate, with the rotation of the adjusting element spacing the tray at the one of the various positions.
Claim 4
Dependent Claim
33 words
The seat according to claim 1 further comprising a pad mounted on the plate and intermediate the plate and the net for contact with the net when the user sits on the seat.
Claim 5
Dependent Claim
17 words
The seat according to claim 1 wherein the supporting device comprises two bearings for supporting the axle.
Claim 6
Dependent Claim
21 words
The seat according to claim 4 wherein each of the bearings defines a tunnel for receiving a portion of the axle.
Claim 7
Dependent Claim
45 words
The seat according to claim 4 wherein the supporting device comprises a plurality of fasteners, and each of the bearings defines a plurality of apertures, and the tray defines a plurality of screw holes for receiving the fasteners inserted through the aperture of the bearings.
Claim 8
Dependent Claim
39 words
The seat according to claim 1 wherein the tray defines an aperture, and the axle comprises a portion inserted through the aperture of the tray, and the supporting device comprises a knob connected to the portion of the axle.
Claim 9
Dependent Claim
19 words
The seat according to claim 1 wherein the plate comprises a plurality of ribs in contact with the cam.
Claim 10
Dependent Claim
36 words
The seat according to claim 1 wherein the supporting device comprises a block connected to the tray, and the positioning element comprises a plurality of spokes extended from a center thereof and engaged with the block.
Claim 11
Dependent Claim
21 words
The seat according to claim 9 wherein the block comprises an indentation selectively engaging with one of the plurality of spokes.
Claim 12
Dependent Claim
42 words
The seat according to claim 9 wherein the block comprises a ridge, and wherein the positioning element comprises a plurality of recesses which alternating with the plurality of spokes, and with the ridge selectively engaging with one of the plurality of recesses.
Claim 13
Dependent Claim
13 words
The seat according to claim 1 comprising a frame for supporting the net.
Claim 14
Dependent Claim
106 words
The seat according to claim 1 further comprising a backrest, a net mounted on the backrest and another supporting device provided between the backrest and the net so that when a user reclines on the seat, the net takes a proportion of the user's weight while the supporting device takes another proportion of the user's weight, and wherein the supporting device comprises a plate and an adjusting element for adjusting the height of the plate on the backrest, wherein the adjusting element comprises an axle rotationally mounted on the backrest and a cam and a positioning element formed on the axle and located beneath the plate.
Claim 15
Dependent Claim
21 words
The seat according to claim 13 wherein the supporting device mounted in the backrest comprises two bearings for supporting the axle.
Claim 16
Dependent Claim
40 words
The seat according to claim 13 wherein the supporting device mounted in the backrest comprises a block connected to the backrest, and the positioning element comprises a plurality of spokes extended from a center thereof and engaged with the block.
Claim 17
Dependent Claim
21 words
The seat according to claim 15 wherein the block comprises an indentation selectively engaging with one of the plurality of spokes.
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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) | 2013-06-07 | 2013-12-07 | 2014-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2017-06-07 | 2017-12-07 | 2018-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2021-06-07 | 2021-12-07 | 2022-06-08 | $7700.00 | Window Closed / Lapsed |