US3707885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hoist handle
Assignee: Yale Industrial Products Inc
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Filing: 1971-10-12
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Granted: 1973-01-02
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Expires: 1991-10-12
Abstract
Abstract A bending element and hoist handle, the latter preferably having a hollow tubular plastic lever portion. A bending element body fitted within one end of the lever. The diameter at a connecting portion designed to a given overload. An adapter fits to the bending element and is fitted to the hoist. The result is a hoist handle in which the bending element will fail before the hoist is overloaded by the operator.
Inventors
- 👤 A Profet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:50
CPC Classifications
B; B60; B60P; B60P7/00; B60P7/06; B60P7/08; B60P7/0823; B60P7/0853; B66; B66D; B66D1/00; B66D1/02; B66D1/04; B66D1/06; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/20612; Y10T74/20618; Y10T74/20732
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
146 words
A hoist handle comprising, in combination, a handle adapter, a bending element, an elongate lever member, said adapter having a securing member, said securing member terminating in a shank having a cylindrical bore, said bending element being cylindricaL and proportioned to fit within said bore to a depth of at least one diameter, said lever constituting a cylindrical member and having a cylindrical bore at one end proportioned to receive said bending element, means for removably securing the bending element in the handle adapter shank bore and the handle bore, said bending element being chosen from a material and having a diameter preselected to bend at a predetermined overload of the associated hoist, whereby exceeding such overload will disable the hoist by bending the bending element which may thereafter be replaced by removing and inserting another bending element secured in place by the removable securing means.
Claim 2
Dependent Claim
146 words
A hoist handle comprising, in combination, a handle adapter, a bending element, an elongate lever member, said adapter having a securing member, said securing member terminating in a shank having a cylindrical bore, said bending element being cylindricaL and proportioned to fit within said bore to a depth of at least one diameter, said lever constituting a cylindrical member and having a cylindrical bore at one end proportioned to receive said bending element, means for removably securing the bending element in the handle adapter shank bore and the handle bore, said bending element being chosen from a material and having a diameter preselected to bend at a predetermined overload of the associated hoist, whereby exceeding such overload will disable the hoist by bending the bending element which may thereafter be replaced by removing and inserting another bending element secured in place by the removable securing means.
Claim 3
Dependent Claim
30 words
In the handle of claim 1, said lever member being formed of a non-metallic material thereby insulating that portion remote from the bending element from electrical contact with the adapter.
Claim 4
Dependent Claim
70 words
In the handle of claim 1, said lever bending element end having a diameter larger than the adapter shank, thereby preventing the ''''short-circuiting'''' of the bending element by placing a pipe over the lever and adapter shank of inside diameter necessarily larger than the outside diameter of the lever and adapter shank so that the pipe end is precluded from contacting the adapter shank until the bending element is deformed.
Claim 5
Dependent Claim
40 words
In the handle of claim 1, an enlarged section at the end of the handle remote from the adapter shank which renders difficult the placing of a pipe over the handle and adapter shank to ''''short circuit'''' the bending element.
Claim 6
Dependent Claim
16 words
In the handle of claim 1, the bending element being designed to a 50 percent overload.
Claim 7
Dependent Claim
19 words
In the handle of claim 1, said securing section comprising a flat plate having two longitudinally aligned mounting holes.
Claim 8
Dependent Claim
36 words
In the handle of claim 1, a combined coupling sleeve and bending element, said sleeve portion having an interior, bore proportioned to receive the handle end, and means for securing the sleeve to the handle end.
Claim 9
Dependent Claim
70 words
In the handle of claim 2, said lever bending element end having a diameter larger than the adapter shank thereby preventing the ''''short-circuiting'''' of the bending element by placing a pipe over the lever and adapter shank of inside diameter necessarily larger than the outside diameter of the lever and adapter shank so that the pipe end is precluded from contacting the adapter shank until the bending element is deformed.
Claim 10
Dependent Claim
40 words
In the handle of claim 3, an enlarged section at the end of the handle remote from the adapter shaft which renders difficult the placing of a pipe over the handle and adapter shaft to ''''short circuit'''' the bending element.
Claim 11
Dependent Claim
40 words
In the handle of claim 7, an enlarged section at the end of the handle remote from the adapter shaft which renders difficult the placing of a pipe over the handle and adapter shaft to ''''short circuit'''' the bending element.
Claim 12
Dependent Claim
36 words
In the handle of claim 2, a combined coupling sleeve and bending element, said sleeve portion having an interior, bore proportioned to receive the handle end, and means for securing the sleeve to the handle end.
Claim 13
Dependent Claim
23 words
In the handle of claim 1, said bending element having an enlarged body portion for insertion within the cylindrical bore of the handle.
Claim 14
Dependent Claim
39 words
In the handle of claim 12, a sleeve extensive in length with said enlarged body portion and proportioned for and in intimate contact fit with the lever thereby sandwiching the lever end portion between the sleeve and enlarged body.
Claim 15
Dependent Claim
21 words
In the handle of claim 13, the length of the sleeve and enlarged body portion approximating two diameters of the lever.
Claim 16
Dependent Claim
69 words
In the handle of claim 1, said handle adapter having means for securing the same to its associated hoist such that the hoist portion immediately adjacent the handle adapter serves as a stop to prevent a sleeve-like cheater from extending over the full length of the adapter thereby permitting the cheater to override the effect of the disabling of the handle due to the bending of the benDing element.
References Cited (Backward Citations)
US3561285A
Cited
US3597995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |