Patent US3591174A successfully refreshed from Google Patents.
US3591174A
Expired / Lapsed
US
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Frictional resistance type exercising device
Assignee: First National Bank of Chicago
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Filing: 1968-12-20
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Granted: 1971-07-06
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Expires: 1988-12-20
Abstract
Abstract An exercising device including a housing, a shaft positioned within the housing and having one end attached thereto, and a rope disposed in frictional engagement about the shaft. The rope enters into and exits from the housing through the sides thereof adjacent one end of the housing so that the rope may be pulled against the resistance produced by the frictional engagement of the rope with the shaft. A plastic dial member is rotatably fixed to the other end of the shaft and releasably engages the housing so that the rotational position of the shaft with respect to the housing may be adjusted to thereby vary the amount of frictional engagement of the rope with the shaft.
Inventors
- 👤 Ira J Silberman
- 👤 Ralph Edwin Wilgus Jr
- 👤 George M Hopkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:03
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/012; A63B21/018
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
252 words
An exercising device comprising: a housing including a pair of rope guides mounted adjacent one end thereof; a shaft positioned within said housing and having an opening therethrough adjacent one end thereof, said one shaft end being rotatably secured to the housing; a member made from a nonmetallic heat insulating material on the other end of the shaft for rotation with the shaft, the said member being in releasable locking engagement with housing; a biasing means mounted on said other shaft end and urging the member into locking engagement with the housing so that the shaft normally is prevented from rotating with respect to the housing; and a rope extending into the housing through one of said guides and spaced from the member, then onto the shaft end, about the shaft in frictional engagement therewith, through said shaft opening, again about the shaft in frictional engagemEnt therewith, then off the shaft adjacent said other shaft adjacent said other shaft end, and out of the housing through the other of said guides and spaced from the member so that the rope may be pulled about the shaft without contacting the member, whereby the shaft may be rotated with respect to the housing to adjust the amount of frictional engagement of the rope with the shaft by disengaging the member from, and turning the member and shaft with respect to, the housing, and the member insulates the housing from the heat generated in the shaft by the pulling of the rope about the shaft.
Claim 2
Dependent Claim
252 words
An exercising device comprising: a housing including a pair of rope guides mounted adjacent one end thereof; a shaft positioned within said housing and having an opening therethrough adjacent one end thereof, said one shaft end being rotatably secured to the housing; a member made from a nonmetallic heat insulating material on the other end of the shaft for rotation with the shaft, the said member being in releasable locking engagement with housing; a biasing means mounted on said other shaft end and urging the member into locking engagement with the housing so that the shaft normally is prevented from rotating with respect to the housing; and a rope extending into the housing through one of said guides and spaced from the member, then onto the shaft end, about the shaft in frictional engagement therewith, through said shaft opening, again about the shaft in frictional engagemEnt therewith, then off the shaft adjacent said other shaft adjacent said other shaft end, and out of the housing through the other of said guides and spaced from the member so that the rope may be pulled about the shaft without contacting the member, whereby the shaft may be rotated with respect to the housing to adjust the amount of frictional engagement of the rope with the shaft by disengaging the member from, and turning the member and shaft with respect to, the housing, and the member insulates the housing from the heat generated in the shaft by the pulling of the rope about the shaft.
Claim 3
Dependent Claim
18 words
A device as recited in claim 1, wherein the member engages the housing at said one housing end.
Claim 4
Dependent Claim
28 words
A device as recited in claim 1, wherein the only portion of the shaft which contacts the housing consists of the surface area of said one shaft end.
Claim 5
Dependent Claim
47 words
A device as recited in claim 1, wherein the member is axially slidable on the shaft and includes means for engaging the housing upon axial movement of the member toward said one shaft end; and wherein said biasing means urges the member toward said one shaft end.
Claim 6
Dependent Claim
36 words
A device as recited in claim 4, wherein said releasable locking engagement is provided by at least one slot formed in the member; and wherein said housing includes at least one lug engageable by said slot.
Claim 7
Dependent Claim
41 words
A device as recited in claim 1, wherein the member extends out of the housing when the member is engaged therewith so that the member may be grasped easily by a user for rotating the shaft with respect to the housing.
References Cited (Backward Citations)
US3197204A
Cited
US3460392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |