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US5342072A Expired / Lapsed US ⏱️ 0.0 years remaining

Baby walker having safety interlock

Assignee: Individual
•
Filing: 1993-02-16
•
Granted: 1994-08-30
•
Expires: 2013-02-16
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Abstract

Abstract A walker for an infant or incapacitated adult which includes a frame work dimensioned and configured for placement around the user having an upper member dimensioned to enable the user to support him or herself and a lower member encircling the legs of the user, the upper and lower members being disposed in spaced relationship. The apparatus also includes a plurality of wheels carried on the second member at spaced parts thereof and apparatus for locking the wheels responsive to passage of the walker into a predetermined zone of danger. In some forms of the invention the apparatus for locking includes a apparatus contacting the circumference of each of the wheels. The wheels may be caster wheels and the apparatus for locking may include a plurality of holes in the circumference of each wheel and a pin dimensioned and configured for engaging the holes. The apparatus for locking may include a cable connected to each pin for limiting axial motion thereof. The apparatus for locking may include a receiver for receiving a signal and a transmitter for sending a signal which may be for a radio frequency signal. The apparatus may also include apparatus for sensing movement of the walker into a predetermined zone of danger.

Inventors

  • 👤 Romeo Prasad

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 16:29
CPC Classifications
A; A47; A47D; A47D13/00; A47D13/04; A61; A61H; A61H3/00; A61H3/04; A61H2003/046

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 126 words
A walker for an infant or incapacitated adult which comprises: a frame work dimensioned and configured for placement around the user having an upper member dimensioned to enable the user to support him or herself and a lower member encircling the legs of the user, said upper and lower members being disposed in spaced relationship; a plurality of wheels carried on said second member at spaced parts thereof, said wheels being caster wheels; means for locking said wheels responsive to passage of said walker into a predetermined zone of danger, said means for locking includes a means contacting the circumference of each of said wheels and a plurality of holes in the circumference of each wheel and a pin dimensioned and configured for engaging said holes.
Claim 2
Dependent Claim 126 words
A walker for an infant or incapacitated adult which comprises: a frame work dimensioned and configured for placement around the user having an upper member dimensioned to enable the user to support him or herself and a lower member encircling the legs of the user, said upper and lower members being disposed in spaced relationship; a plurality of wheels carried on said second member at spaced parts thereof, said wheels being caster wheels; means for locking said wheels responsive to passage of said walker into a predetermined zone of danger, said means for locking includes a means contacting the circumference of each of said wheels and a plurality of holes in the circumference of each wheel and a pin dimensioned and configured for engaging said holes.
Claim 3
Dependent Claim 24 words
The apparatus as described in claim 1, wherein: said means for locking includes a cable connected to each pin for limiting axial motion thereof.
Claim 4
Dependent Claim 26 words
The apparatus as described in claim 2 wherein: said means for locking includes a receiver for receiving a signal and a transmitter for sending a signal.
Claim 5
Dependent Claim 17 words
The apparatus as described in claim 3, wherein: said receiver and transmitter utlize a radio frequency signal.
Claim 6
Dependent Claim 22 words
The apparatus as described in claim 4 further including: means for sensing movement of said walker into a predetermined zone of danger.
Claim 7
Dependent Claim 32 words
The apparatus as described in claim 5 wherein: said means for locking includes a solenoid disposed at each caster wheel, each solenoid including a pin for engaging one of said caster wheels.
Claim 8
Dependent Claim 22 words
The apparatus as described in claim 6 further including: means for sensing movement of said walker into a predetermined zone of danger.

References Cited (Backward Citations)

US3356185A Cited
US4084663A Cited
US4577880A Cited
US4776415A Cited
US5046748A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1997-08-29 1998-02-28 1998-08-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2001-08-29 2002-02-28 2002-08-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2005-08-29 2006-02-28 2006-08-30 $7700.00 Window Closed / Lapsed

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