US3731323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orthotic-prosthetic transverse rotator
Assignee: Individual
•
Filing: 1971-08-26
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Granted: 1973-05-08
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Expires: 1991-08-26
Abstract
Abstract A transverse rotator for an orthotic and/or prosthetic limb. The rotator has a mount connectable to the limb with a ground engageable means being rotatably connected to the mount. A projection and a first and second stop are provided in the rotator to limit the rotation of the ground engageable means with respect to the mount. Means bearingly space the mount and ground engageable means apart. A spring is provided to return the ground engageable means to the normal position. The amount of rotation of the ground engageable means may be varied. A pair of racer plates are positioned on either side of the means which bearingly space the mount and ground engageable means apart.
Inventors
- 👤 J Glancy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:14
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/50; A61F2/60; A61F2/66; A61F13/00; A61F13/04; A61F13/041; A61F13/045; A61F2002/5067
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
209 words
A rotator for a limb comprising: a mount connectable to said limb; ground engageable means rotatably mounted to said mount about an axis of rotation, said means having a first and second stop; bearing means spacing said mount and said ground engageable means apart; a projection fixedly connected to said mount and movable about said axis between said first and second stop; and, spring means mounted on said ground engageable means and operable to normally urge said projection against said first stop but yieldable to allow said projection to abut said second stop as said ground engageable means rotates with respect to said mount; and wherein: said ground engageable means has a recess with diverging side walls extending radially from said axis spaced apart by a first included angle, said ground engageable means has a slot communicating with said recess which extends through at least one of said side walls; said projection has diverging walls extending radially from said axis and spaced apart by a second included angle of at least 5* less than said first included angle; and, said spring means is a helical spring positioned in said slot and normally urging one of said walls of said projection against one of said side walls of said recess.
Claim 2
Dependent Claim
209 words
A rotator for a limb comprising: a mount connectable to said limb; ground engageable means rotatably mounted to said mount about an axis of rotation, said means having a first and second stop; bearing means spacing said mount and said ground engageable means apart; a projection fixedly connected to said mount and movable about said axis between said first and second stop; and, spring means mounted on said ground engageable means and operable to normally urge said projection against said first stop but yieldable to allow said projection to abut said second stop as said ground engageable means rotates with respect to said mount; and wherein: said ground engageable means has a recess with diverging side walls extending radially from said axis spaced apart by a first included angle, said ground engageable means has a slot communicating with said recess which extends through at least one of said side walls; said projection has diverging walls extending radially from said axis and spaced apart by a second included angle of at least 5* less than said first included angle; and, said spring means is a helical spring positioned in said slot and normally urging one of said walls of said projection against one of said side walls of said recess.
Claim 3
Dependent Claim
29 words
The support of claim 1 wherein: said slot extends through both of said side walls; and, said mount encloses said bearing means and extends adjacent said ground engageable means.
Claim 4
Dependent Claim
13 words
The support of claim 2 wherein: said slot extends arcuately about said axis.
Claim 5
Dependent Claim
35 words
The support of claim 3 and further comprising: a first racer plate positioned between said mount and said bearing means; and, a second racer plate positioned between said ground engageable means and said bearing means.
Claim 6
Dependent Claim
43 words
ThE support of claim 4 and further comprising: a locking screw extending in the direction of said axis and removably and singularly connecting said ground engageable means and said mount together, and wherein: said bearing means is a ring-shaped plate with thrust bearings.
Claim 7
Dependent Claim
42 words
The rotator of claim 5 wherein: said ground engageable means is a plate with an upraised disc portion extending through said first racer plate and said bearing means; said plate of said ground engageable means has a non-skid rubber covering mounted thereto.
Claim 8
Dependent Claim
20 words
The rotator of claim 6 wherein: said second included angle is at least 20* less than said first included angle.
Claim 9
Dependent Claim
203 words
A rotator for a limb comprising: a mount connectable to said limb and having a first and second stop; ground engageable means rotatably mounted to said mount about an axis of rotation; bearing means spacing said mount and said ground engageable means apart; a projection fixedly connected to said ground engageable means and movable about said axis between said first and second stops; spring means mounted on said mount and operable to normally urge said projection against said first stop but yieldable to allow said projection to abut said second stop as said ground engageable means rotates with respect to said mount; and wherein: said mount has a recess with diverging side walls extending radially from said axis and spaced apart by a first included angle, said mount has a slot communicating with said recess which extends through both of said side walls; said projection has diverging walls extending radially from said axis and spaced apart by a second included angle at least 5 degrees less than said first included angle; and, said spring means is a helical spring positioned in said slot and normally urging one of said side walls of said projection against one of said side walls of said recess.
Claim 10
Dependent Claim
203 words
A rotator for a limb comprising: a mount connectable to said limb and having a first and second stop; ground engageable means rotatably mounted to said mount about an axis of rotation; bearing means spacing said mount and said ground engageable means apart; a projection fixedly connected to said ground engageable means and movable about said axis between said first and second stops; spring means mounted on said mount and operable to normally urge said projection against said first stop but yieldable to allow said projection to abut said second stop as said ground engageable means rotates with respect to said mount; and wherein: said mount has a recess with diverging side walls extending radially from said axis and spaced apart by a first included angle, said mount has a slot communicating with said recess which extends through both of said side walls; said projection has diverging walls extending radially from said axis and spaced apart by a second included angle at least 5 degrees less than said first included angle; and, said spring means is a helical spring positioned in said slot and normally urging one of said side walls of said projection against one of said side walls of said recess.
Claim 11
Dependent Claim
209 words
A rotator for a limb comprising: a mount connectable to said limb; ground engageable means rotatably mounted to said mount about an axis of rotation, said means having a first and second stop; bearing means spacing said mount and said ground engageable means apart; a projection fixedly connected to said mount and movable about said axis between said first and second stop; and, spring means mounted on said ground engageable means and operable to normally urge said projection against said first stop but yieldable to allow said projection to abut said second stop as said ground engageable means rotates with respect to said mount; and wherein: said ground engageable means has a recess with diverging said walls extending radially from said axis spaced apart by a first included angle, said ground engageable means has a slot communicating with said recess which extends through at least one of said side walls; said projection has diverging walls extending radially from said axis and spaced apart by a second included angle of at least 5 degrees less than said first included angle; and, said spring means is a spring positioned in said slot and normally urging one of said walls of said projection against one of said side walls of said recess.
Claim 12
Dependent Claim
209 words
A rotator for a limb comprising: a mount connectable to said limb; ground engageable means rotatably mounted to said mount about an axis of rotation, said means having a first and second stop; bearing means spacing said mount and said ground engageable means apart; a projection fixedly connected to said mount and movable about said axis between said first and second stop; and, spring means mounted on said ground engageable means and operable to normally urge said projection against said first stop but yieldable to allow said projection to abut said second stop as said ground engageable means rotates with respect to said mount; and wherein: said ground engageable means has a recess with diverging said walls extending radially from said axis spaced apart by a first included angle, said ground engageable means has a slot communicating with said recess which extends through at least one of said side walls; said projection has diverging walls extending radially from said axis and spaced apart by a second included angle of at least 5 degrees less than said first included angle; and, said spring means is a spring positioned in said slot and normally urging one of said walls of said projection against one of said side walls of said recess.
Claim 13
Dependent Claim
202 words
A rotator for a limb comprising: a mount connectable to said limb and having a first and second stop; ground engageable means rotatably mounted to said mount about an axis of rotation; bearing means spacing said mount and said ground engageable means apart; a projection fixedly connected to said ground engageable means and movable about said axis between said first and second stops; spring means mounted on said mount and operable to normally urge said projection against said first stop but yieldable to allow said projection to abut said second stop as said ground engageable means rotates with respect to said mount; and wherein: said mount has a recess with diverging side walls extending radially from said axis and spaced apart by a first included angle, said mount has a slot communicating with said recess which extends through both of said side walls; said projection has diverging walls extending radially from said axis and spaced apart by a second included angle at least 5 degrees less than said first included angle; and, said spring means s a spring positioned in said slot and normally urging one of said side walls of said projection against one of said side walls of said recess.
Claim 14
Dependent Claim
202 words
A rotator for a limb comprising: a mount connectable to said limb and having a first and second stop; ground engageable means rotatably mounted to said mount about an axis of rotation; bearing means spacing said mount and said ground engageable means apart; a projection fixedly connected to said ground engageable means and movable about said axis between said first and second stops; spring means mounted on said mount and operable to normally urge said projection against said first stop but yieldable to allow said projection to abut said second stop as said ground engageable means rotates with respect to said mount; and wherein: said mount has a recess with diverging side walls extending radially from said axis and spaced apart by a first included angle, said mount has a slot communicating with said recess which extends through both of said side walls; said projection has diverging walls extending radially from said axis and spaced apart by a second included angle at least 5 degrees less than said first included angle; and, said spring means s a spring positioned in said slot and normally urging one of said side walls of said projection against one of said side walls of said recess.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |