US3894534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Physical therapy machine
Assignee: Individual
•
Filing: 1973-11-01
•
Granted: 1975-07-15
•
Expires: 1993-11-01
Abstract
Abstract A physical therapy machine includes a number of different manipulating means for attachment to various parts of the body of a patient who is to receive physical therapy. The machine includes a frame, a wheel rotatably mounted on the frame, and an electric motor which is connected by gear reduction means and clutch means to the wheel. The wheel is provided with openings at varying distances from its axis of rotation, and a cable can be attached to the wheel by means of the openings. The other end of the cable is attached to the particular manipulating means which is to be used, and as the wheel is rotated by the motor, the end of the cable which is attached to the wheel moves eccentrically about the rotational axis of the wheel so that the other end of the cable is reciprocated to move the manipulating means. The various manipulating means include manipulators for oscillating the patient''s head from side to side, for raising and lowering his legs or arms and for extending and retracting his fingers.
Inventors
- 👤 Milton W Graves
- 👤 Joseph W Spivey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:01
CPC Classifications
A; A61; A61H; A61H1/00; A61H1/02; A61H2001/0203
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
155 words
A physical therapy machine comprising a frame, a motor having a rotary drive shaft mounted on the frame, a driven shaft rotatably mounted on the frame, crank means mounted on the driven shaft for rotation therewith, clutch means mounted on the frame, a first sprocket mounted on the drive shaft, second and third sprockets mounted on the clutch means, and a fourth sprocket mounted on the driven shaft, a first chain extending around the first and second sprockets and a second chain extending around the third and fourth sprockets, the clutch means being operable to transmit rotation of the rotary drive shaft to the driven shaft through the sprockets and chains, manipulating means adapted to be attached to a portion of a patient''s body to receive physical therapy, and cable means connected to the crank means and the manipulating means whereby rotation of the crank means reciprocates the cable means and moves the manipulating means.
Claim 2
Dependent Claim
155 words
A physical therapy machine comprising a frame, a motor having a rotary drive shaft mounted on the frame, a driven shaft rotatably mounted on the frame, crank means mounted on the driven shaft for rotation therewith, clutch means mounted on the frame, a first sprocket mounted on the drive shaft, second and third sprockets mounted on the clutch means, and a fourth sprocket mounted on the driven shaft, a first chain extending around the first and second sprockets and a second chain extending around the third and fourth sprockets, the clutch means being operable to transmit rotation of the rotary drive shaft to the driven shaft through the sprockets and chains, manipulating means adapted to be attached to a portion of a patient''s body to receive physical therapy, and cable means connected to the crank means and the manipulating means whereby rotation of the crank means reciprocates the cable means and moves the manipulating means.
Claim 3
Dependent Claim
32 words
The machine of claim 1 in which the first sprocket has a smaller diameter than the second sprocket whereby the driven shaft rotates at a slower speed than the rotary drive shaft.
Claim 4
Dependent Claim
67 words
The machine of claim 1 in which the crank means comprises a wheel mounted on the driven shaft for rotation therewith, the wheel being provided with a plurality of attachment means for the cable means at varying distances from the shaft whereby the amount of reciprocation of the cable means as the wheel rotates may be varied by selectively attaching the cable means to different attachment means.
Claim 5
Dependent Claim
153 words
A physical therapy machine comprising a frame, a motor having a rotary drive shaft mounted on the frame, crank means rotatably mounted on the frame and operably connected to the rotary drive shaft for rotation thereby, manipulating means adapted to be attached to a portion of a patient''s body to receive physical therapy, and cable means connected to the crank means and the manipulating means whereby rotation of the crank means reciprocates the cable means and moves the manipulating means, the manipulating means comprising a subfraMe, a headrest pivotally mounted on the subframe for oscillating movement, lever arm means pivotally mounted on the subframe for oscillating movement, link means connecting the lever arm means and the headrest for oscillating the headrest when the lever arm is oscillated, the cable means being connected to the lever arm means whereby reciprocation of the cable means causes oscillation of the lever arm means and the headrest.
Claim 6
Dependent Claim
153 words
A physical therapy machine comprising a frame, a motor having a rotary drive shaft mounted on the frame, crank means rotatably mounted on the frame and operably connected to the rotary drive shaft for rotation thereby, manipulating means adapted to be attached to a portion of a patient''s body to receive physical therapy, and cable means connected to the crank means and the manipulating means whereby rotation of the crank means reciprocates the cable means and moves the manipulating means, the manipulating means comprising a subfraMe, a headrest pivotally mounted on the subframe for oscillating movement, lever arm means pivotally mounted on the subframe for oscillating movement, link means connecting the lever arm means and the headrest for oscillating the headrest when the lever arm is oscillated, the cable means being connected to the lever arm means whereby reciprocation of the cable means causes oscillation of the lever arm means and the headrest.
Claim 7
Dependent Claim
23 words
The machine of claim 4 including spring means connected to the subframe and to the lever arm means for tensioning the cable means.
References Cited (Backward Citations)
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US3538911A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |