Patent US4452449A successfully refreshed from Google Patents.
US4452449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Office seating with activity features
Assignee: MillerKnoll Inc
•
Filing: 1982-03-22
•
Granted: 1984-06-05
•
Expires: 2002-03-22
Abstract
Abstract An office seating system which incorporates certain activity features into the office seating arrangement allowing the occupant to obtain beneficial exercise during the performance of work tasks. The activities which may be performed include: pedal pumping by the feet; a rocking of the seat on the upright with the head being fixed; a recline motion; and a pull and relax motion for the arms. Various mechanisms are disclosed for providing the accomplishment of these activity functions by occupants.
Inventors
- 👤 Robert L. Propst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:38
CPC Classifications
A; A47; A47C; A47C16/00; A47C16/02; A47C16/025; A47C3/00; A47C3/02; A47C3/025; A47C3/026; A47C9/00; A47C9/02; A63; A63B; A63B21/00; A63B21/02; A63B21/055; A63B21/16; A63B21/1609; A63B22/00; A63B22/0048; A63B22/0056; A63B21/00058; A63B21/00069; A63B21/023; A63B21/04; A63B21/0407; A63B21/0421; A63B21/0428; A63B21/0552; A63B21/0557; A63B2208/00; A63B2208/02; A63B2208/0228; A63B2208/0233; A63B2210/00; A63B2210/02; A63B2225/00; A63B2225/30
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
208 words
In a work station wherein an individual occupies a seated position while working, the improvement which comprises a seating arrangement for the individual which concurrently provides both for stability of certain portions of the individual's body in conducting work tasks at the work station and for mobility of certain other portions of the individual's body to engage in therapeutic activities while conducting work tasks, said seating arrangement comprising a seat mounted on an upright by a mechanism which allows fore and aft motion of the seat relative to the upright thereby providing for mobility by fore and aft rocking of the seat so that the individual, by leg action, can generate rocking motion while maintaining his or her head stabilized for conducting work tasks, said mechanism comprising one or more rollers operatively engaged with a track providing a fore and aft motion by rolling engagement of the rollers with the track, a yieldable resistance which is effective to yieldably resist with increasing force increasing fore and aft displacement of the seat from a neutral position, and adjustment means for said resistance effective to enable the individual to set the magnitude of the resistive forces which are encountered during fore and aft displacement of the seat on the upright.
Claim 2
Dependent Claim
208 words
In a work station wherein an individual occupies a seated position while working, the improvement which comprises a seating arrangement for the individual which concurrently provides both for stability of certain portions of the individual's body in conducting work tasks at the work station and for mobility of certain other portions of the individual's body to engage in therapeutic activities while conducting work tasks, said seating arrangement comprising a seat mounted on an upright by a mechanism which allows fore and aft motion of the seat relative to the upright thereby providing for mobility by fore and aft rocking of the seat so that the individual, by leg action, can generate rocking motion while maintaining his or her head stabilized for conducting work tasks, said mechanism comprising one or more rollers operatively engaged with a track providing a fore and aft motion by rolling engagement of the rollers with the track, a yieldable resistance which is effective to yieldably resist with increasing force increasing fore and aft displacement of the seat from a neutral position, and adjustment means for said resistance effective to enable the individual to set the magnitude of the resistive forces which are encountered during fore and aft displacement of the seat on the upright.
Claim 3
Dependent Claim
41 words
The improvement set forth in claim 1 wherein the adjustment means for the resistance comprises four yieldalby resistive elements arranged in a four-sided configuration with a means for setting the relative position of two diagonally opposite points of the four-sided configuration.
Claim 4
Dependent Claim
150 words
In a work station wherein an individual occupies a seated position while working, the improvement which comprises a seating arrangement for the individual which concurrently provides for stability of certain portions of the individual's body in conducting work tasks at the work station and for mobility of certain other portions of the individual's body to engage in therapeutic activities while conducting work tasks, said seating arrangement providing for mobility of one or both arms by allowing the individual to manually grasp a handgrip portion of an armrest and manipulate that portion with respect to the remainder of the armrest, said seating arrangement comprising a fixed armrest portion and a handgrip portion at the front of the fixed arm rest portion and means yieldably coupling the handgrip portion with the fixed armrest portion to provide a yieldable resistance to a forward motion of the individual's arm when manipulating the handgrip portion.
Claim 5
Dependent Claim
150 words
In a work station wherein an individual occupies a seated position while working, the improvement which comprises a seating arrangement for the individual which concurrently provides for stability of certain portions of the individual's body in conducting work tasks at the work station and for mobility of certain other portions of the individual's body to engage in therapeutic activities while conducting work tasks, said seating arrangement providing for mobility of one or both arms by allowing the individual to manually grasp a handgrip portion of an armrest and manipulate that portion with respect to the remainder of the armrest, said seating arrangement comprising a fixed armrest portion and a handgrip portion at the front of the fixed arm rest portion and means yieldably coupling the handgrip portion with the fixed armrest portion to provide a yieldable resistance to a forward motion of the individual's arm when manipulating the handgrip portion.
Claim 6
Dependent Claim
77 words
The improvement set forth in claim 3 in which the fixed armrest portion comprises a hollow interior with the handgrip portion having connected thereto a shaft which extends through an aperture in the fixed armrest portion into the hollow interior thereof and including for the yieldable coupling means a compression spring member which is disposed around the shaft interior of the armrest so as to be compressed when the handgrip portion is urged forwardly by the individual.
Claim 7
Dependent Claim
95 words
In a work station wherein an individual occupies a seated position while working, the improvement which comprises a seating arrangement for the individual which concurrently provides both for stability of certain portions of the individual's body in conducting work tasks at the work station and for mobility of certain other portions of the individual's body to engage in therapeutic activities while conducting work tasks, said seating arrangement providing for mobility of the individual's feet by means of a foot pumping mechanism comprising a treadle plate pivotally mounted about a pivot axis through a yieldable resistance.
Claim 8
Dependent Claim
95 words
In a work station wherein an individual occupies a seated position while working, the improvement which comprises a seating arrangement for the individual which concurrently provides both for stability of certain portions of the individual's body in conducting work tasks at the work station and for mobility of certain other portions of the individual's body to engage in therapeutic activities while conducting work tasks, said seating arrangement providing for mobility of the individual's feet by means of a foot pumping mechanism comprising a treadle plate pivotally mounted about a pivot axis through a yieldable resistance.
Claim 9
Dependent Claim
16 words
The improvement set forth in claim 5 in which the yieldable resistance comprises an elastomeric member.
Claim 10
Dependent Claim
31 words
The improvement set forth in claim 6 including adjustment means for adjustably deforming the elastomeric member to in turn adjust the character of the yieldable resistance of the foot pumping mechanism.
Claim 11
Dependent Claim
37 words
The improvement set forth in claim 5 including means to elevate the treadle plate to selected elevational positions and means for maintaining the treadle plate in approximately the same attitude throughout the range of its elevational positions.
Claim 12
Dependent Claim
42 words
The improvement set forth in claim 8 in which the treadle plate and yieldable resistance are mounted on a four-bar linkage elevating mechanism pivotted on a base to maintain the treadle plate in approximately the same attitude throughout its various elevational positions.
Claim 13
Dependent Claim
37 words
The improvement set forth in claim 9 including a latching mechanism which is effective to latch the elevating means in selected elevational positions and means to release the latching means when the elevation is to be changed.
References Cited (Backward Citations)
US160624A
Cited
US576344A
Cited
US2479175A
Cited
US2609032A
Cited
US2966203A
Cited
US3140119A
Cited
US3567280A
Cited
US4169574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-05 | 1987-12-05 | 1988-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-05 | 1991-12-05 | 1992-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-05 | 1995-12-05 | 1996-06-05 | $7700.00 | Window Closed / Lapsed |