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US4025112A Expired / Lapsed US ⏱️ 0.0 years remaining

Medical stools

Assignee: Individual
•
Filing: 1975-12-15
•
Granted: 1977-05-24
•
Expires: 1995-12-15
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Abstract

Abstract A stool for medical and other purposes, the stool comprising a base with or without casters, a seat, vertical support frame or structure between the base and the underside of the seat, which may contain structure for varying the effective height thereof, body rest structure eccentrically disposed above and adjacent part of the periphery of the seat with support frame spanning and transferring load between the body rest structure and the underside of the seat and/or the vertical support structure between the underside of the seat and the base, which last-mentioned support frame may comprise structure for vertically altering the location of the body rest structure. The stool also comprises a load-bearing member such as an arm rest or a combination arm rest equipment holding platform or merely an equipment holding platform, the arm rest or platform being selectively positionable in any one of a plurality of support or work locations adjacent the body rest structure, the arm rest or equipment support being connected by an intermediate generally horizontally disposed member which is joined to the support frame and the underside of the arm rest or equipment support, respectively, by male/female tapered connectors which, when the male/female interrelationship is compressed, ready rotation at the connector is obviated whereas the opposite is true when the male/female relationship is caused to be relatively loose, the connectors accommodating ready separation of the arm rest from the intermediate member and the intermediate member from the support frame.

Inventors

  • 👤 Dean H. Hale

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 02:46
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/36; A47C7/40; A47C7/402; A47C1/00; A47C1/02; A47C1/022; A47C1/03; A61; A61G; A61G15/00; A61G15/10

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 131 words
A stool comprising: a seat; framework means connected to and supporting the seat; horizontally disposed means for supporting a load comprising an arm of the user, equipment or the like; variable resistance pivotal connector means interposed between the framework means and the supporting means, the connector means comprising telescopically interrelated male and female means, at least one of said telescopically interrelated male and female means being relatively tapered in respect to the other, so that the amount of telescopic overlap may be selectively varied manually with minimum effort and no tools, which in turn will vary the resistance to relative rotation of the male and female means to accommodate ready rotation of the supporting means from position to position or retention in a selected position in respect to the framework means.
Claim 2
Dependent Claim 131 words
A stool comprising: a seat; framework means connected to and supporting the seat; horizontally disposed means for supporting a load comprising an arm of the user, equipment or the like; variable resistance pivotal connector means interposed between the framework means and the supporting means, the connector means comprising telescopically interrelated male and female means, at least one of said telescopically interrelated male and female means being relatively tapered in respect to the other, so that the amount of telescopic overlap may be selectively varied manually with minimum effort and no tools, which in turn will vary the resistance to relative rotation of the male and female means to accommodate ready rotation of the supporting means from position to position or retention in a selected position in respect to the framework means.
Claim 3
Dependent Claim 53 words
A stool according to claim 1 wherein said supporting means comprise a load-bearing arm rest or equipment support platform together with load transferring beam means connected to the arm rest or equipment platform and further comprising a second of said connector means interposed between the arm rest or equipment platform and beam means.
Claim 4
Dependent Claim 20 words
A stool according to claim 1 wherein the angle of said relative taper is on the order of 1° .
Claim 5
Dependent Claim 36 words
A stool according to claim 1 wherein the female means of the connector means has a cylindrically hollow interior and the male means has a limited convergent conical taper in a direction toward the female means.
Claim 6
Dependent Claim 21 words
A stool according to claim 1 wherein the connector means is located above the seat adjacent the periphery of the seat.
Claim 7
Dependent Claim 41 words
A stool according to claim 1 wherein said framework means extends eccentrically above the seat adjacent the periphery of the seat and the connector means are eccentrically joined to the framework means above the seat adjacent the periphery of the seat.
Claim 8
Dependent Claim 42 words
A stool according to claim 1 wherein the framework means extends eccentrically above the seat adjacent the periphery of the seat and the connector means are substantially concentrically joined to the framework means above the seat adjacent the periphery of the seat.
Claim 9
Dependent Claim 34 words
A stool according to claim 1 wherein said supporting means comprises a load-bearing arm rest or equipment support and said connector means are located at the underside of said arm rest or equipment support.

References Cited (Backward Citations)

US743279A Cited
US1032801A Cited
US2164390A Cited
US2950892A Cited
CH424192A Cited
US3348799A Cited
US3338600A Cited
US3829159A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-05-23 1980-11-22 1981-05-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-05-23 1984-11-22 1985-05-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-05-23 1988-11-22 1989-05-24 $7700.00 Window Closed / Lapsed

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