Patent US5435508A successfully refreshed from Google Patents.
← Back to Patent Explorer
US5435508A Expired / Lapsed US ⏱️ 0.0 years remaining

Wrist rest support

Assignee: Individual
•
Filing: 1994-08-01
•
Granted: 1995-07-25
•
Expires: 2014-08-01
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An apparatus for supporting the wrist of a keyboard operator during repetitive keyboard operations is disclosed. The apparatus comprises a bladder having an elongated length and an arcuate cross-section, and enclosed sealed ends. The bladder contains a viscous fluid for supporting the wrist of the keyboard operator when the operator is engaged in repetitive keyboard operations. An outer shell completely surrounds the bladder and contacts the wrist of the operator. The outer shell has an aperture adapted to receive the bladder and remove the bladder when it is desired to wash the outer shell. The outer shell is fabricated from a material that will withstand repeated machine washings and will maintain a fresh odor-free aroma and a pleasant-to-the-touch, itch-free feeling. The viscous fluid contains about between 0.5% to 5.5% hydroxy propyl methylcellulose with the balance being water. The viscous fluid supports the wrist of the operator and allows unimpeded flow of blood through the wrist of the keyboard operator. The bladder is fabricated from an elastomeric material, preferably frosted vinyl plastic. The ends of the bladder are sealed to hold the viscous fluid in the bladder without any possibility of leakage.

Inventors

  • 👤 Jeffery Deuitch
  • 👤 Lynn Deuitch

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 01:10
CPC Classifications
A; A47; A47B; A47B21/00; A47B21/03; A47B21/0371; A47B2021/0378

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 122 words
An apparatus for supporting the wrists of a keyboard operator during repetitive keyboard operations comprising in combination: a sealed bladder having an elongated length and an arcuate cross-section and closed, sealed ends for forming a flexible reservoir, the reservoir containing a viscous fluid for supporting the wrists of the key-board operator when engaged in repetitive keyboard operations; and an outer shell enclosing the bladder and having a smooth uniform outer surface for maintaining continuous contact with the wrists of the user, the outer shell further having an aperture adapted to receive the bladder in removable communication, the outer shell still further being fabricated from a washable material, preferably polyester velour for urging fresh odor-free contact with the wrists of the keyboard operator.
Claim 2
Independent Claim 122 words
An apparatus for supporting the wrists of a keyboard operator during repetitive keyboard operations comprising in combination: a sealed bladder having an elongated length and an arcuate cross-section and closed, sealed ends for forming a flexible reservoir, the reservoir containing a viscous fluid for supporting the wrists of the key-board operator when engaged in repetitive keyboard operations; and an outer shell enclosing the bladder and having a smooth uniform outer surface for maintaining continuous contact with the wrists of the user, the outer shell further having an aperture adapted to receive the bladder in removable communication, the outer shell still further being fabricated from a washable material, preferably polyester velour for urging fresh odor-free contact with the wrists of the keyboard operator.
Claim 3
Dependent Claim 38 words
An apparatus for supporting the wrists of a keyboard operator as recited in claim 1 wherein the viscous fluid further includes hydroxy propyl methylcellulose in a range of about between 0.5% to 5.5% and the balance being water.
Claim 4
Dependent Claim 35 words
An apparatus for supporting the wrists of a keyboard operator as recited in claim 1 wherein the bladder conforms to the shape of the wrists regardless of the position of the wrists on the apparatus.
Claim 5
Dependent Claim 42 words
An apparatus for supporting the wrists of a keyboard operator as recited in claim 1 wherein the viscous fluid supports the wrists and does not constrict the arteries which could impede the flow of blood through the wrists of the keyboard operator.
Claim 6
Dependent Claim 23 words
An apparatus for supporting the wrists of a keyboard operator as in claim 1 wherein the bladder is fabricated from an elastomeric material.
Claim 7
Dependent Claim 23 words
An apparatus for supporting the wrists of a keyboard operator as in claim 5 wherein the elastomeric material is a frosted vinyl plastic.
Claim 8
Dependent Claim 44 words
An apparatus for supporting the wrists of a keyboard operator as in claim 1 wherein the ends are attached to the elongated member in sealing communication for holding the viscous fluid in the bladder and preventing leakage of the viscous fluid from the bladder.
Claim 9
Dependent Claim 41 words
An apparatus for supporting the wrists of a keyboard operator as in claim 1 wherein the outer shell is fabricated from a material that can be repeatedly machine washed for maintaining a pleasant to the touch feeling and an odor-free aroma.
Claim 10
Dependent Claim 20 words
An apparatus for supporting the wrists of a keyboard operator as in claim 1 wherein the viscous fluid is water.

References Cited (Backward Citations)

US4220309A Cited
US5148256A Cited
US4688862A Cited
US4896388A Cited
US5050826A Cited
US5228655A Cited
US5170971A Cited
US5125606A Cited
US5219136A Cited
US5158255A Cited
US5173979A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1998-07-24 1999-01-23 1999-07-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2002-07-24 2003-01-23 2003-07-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2006-07-24 2007-01-23 2007-07-25 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag