US4257410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traction device
Assignee: Individual
•
Filing: 1979-12-31
•
Granted: 1981-03-24
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Expires: 1999-12-31
Abstract
Abstract A traction device includes a pulley wheel and axle and a frame for adjustably supporting the axle including a U-shaped frame having a first central sleeve parallel with the side legs of the U, a horizontal support member slidably received in the first sleeve, a second sleeve at an end of the horizontal support for receiving a vertical support member having the pulley at the top. L-shaped braces pass through the ends of the side legs to form clamping members with the side legs. Square tubular members of two sizes are used to form the frame.
Inventors
- 👤 Dale Flewelling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:24
CPC Classifications
A; A61; A61H; A61H1/00; A61H1/02; A61H1/0218
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
241 words
An improved traction device for use with a patient support apparatus, the device being of the type having a rotatable pulley adapted to receive and support a flexible line extending between the body of a patient and a weight, an axle rotatably supporting the pulley and a support structure for said axle, the movement wherein said support structure includes a generally U-shaped, substantially rigid frame having two side legs and an interconnecting portion lying in a plane which, in use, is generally horizontal; a first hollow, elongated sleeve attached to said interconnecting portion and extending generally parallel with said side legs; an elongated, horizontal support member slidably received in said first sleeve, the length of said horizontal support member being greater than said side legs; a second hollow elongated sleeve attached to said horizontal support member and extending perpendicular to the plane containing said frame; an elongated vertical support member slidably received in said second sleeve; means at the upper end of said vertical support member for holding said axle; first and second generally L-shaped brace members; means near the distal end of each of said side legs defining an opening for receiving a leg of one of said brace members with the other leg thereof extending parallel with its associated side leg toward said interconnecting portion; and means on said first and second sleeves for selectively restraining said horizontal and vertical support members, respectively, against longitudinal motion through said sleeves.
Claim 2
Dependent Claim
241 words
An improved traction device for use with a patient support apparatus, the device being of the type having a rotatable pulley adapted to receive and support a flexible line extending between the body of a patient and a weight, an axle rotatably supporting the pulley and a support structure for said axle, the movement wherein said support structure includes a generally U-shaped, substantially rigid frame having two side legs and an interconnecting portion lying in a plane which, in use, is generally horizontal; a first hollow, elongated sleeve attached to said interconnecting portion and extending generally parallel with said side legs; an elongated, horizontal support member slidably received in said first sleeve, the length of said horizontal support member being greater than said side legs; a second hollow elongated sleeve attached to said horizontal support member and extending perpendicular to the plane containing said frame; an elongated vertical support member slidably received in said second sleeve; means at the upper end of said vertical support member for holding said axle; first and second generally L-shaped brace members; means near the distal end of each of said side legs defining an opening for receiving a leg of one of said brace members with the other leg thereof extending parallel with its associated side leg toward said interconnecting portion; and means on said first and second sleeves for selectively restraining said horizontal and vertical support members, respectively, against longitudinal motion through said sleeves.
Claim 3
Dependent Claim
68 words
A device according to claim 1 wherein said side legs of said frame and said first and second sleeves are hollow, rectangular in cross-section and of the same inner and outer cross-sectional dimensions, and said horizontal and vertical support members and said first and second brace members are rectangular in cross-section, the outer dimensions thereof being smaller than the inner cross-sectional dimensions of said side legs and sleeves.
Claim 4
Dependent Claim
20 words
A device according to claim 2 wherein said side legs, sleeves, support members and brace members are square in cross-section.
Claim 5
Dependent Claim
93 words
A device according to claim 1 wherein each of said means for restraining includes means defining a hole through a side of a sleeve; an internally threaded body fixedly attached to a side of said sleeve coaxially with said hole; an externally threaded shaft matingly received in said body with one end extending toward the interior of said sleeve; and a handle attached to the other end of said shaft, whereby rotation of said handle in one direction causes said shaft to advance into said sleeve to contact the support member received therein.
Claim 6
Dependent Claim
27 words
A device according to claim 1 and further including means in said side legs adjacent said openings for selectively restraining said brace members against sliding movement therethrough.
Claim 7
Dependent Claim
75 words
A device according to claim 5 wherein each of said means for restraining includes means defining a hole through a side of each of said sleeves and each of said side legs adjacent said openings; an internally threaded body fixedly attached in coaxial relationship with each said hole; an externally threaded shaft matingly received in said body with one end extending into said hole; and a handle attached to the other end of said shaft.
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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) | 1984-03-23 | 1984-09-22 | 1985-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-23 | 1988-09-22 | 1989-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-23 | 1992-09-22 | 1993-03-24 | $7700.00 | Window Closed / Lapsed |