Patent US3905633A successfully refreshed from Google Patents.
US3905633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swivel mounted lifting eye for engines
Assignee: Caterpillar Inc
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Filing: 1974-09-30
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Granted: 1975-09-16
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Expires: 1994-09-30
Abstract
Abstract A lifting eye arrangement, adapted to be attached to an engine block or cylinder head by a single bolt, comprises a pair of annular members having hub portions thereof disposed in back-toback relationship to define an annular groove on the periphery of axially spaced base portions thereof. A ring member is rotatably mounted in the groove and a U-shaped lifting eye is pivotally mounted on a pair of projections secured to the ring member and extending radially outwardly therefrom.
Inventors
- 👤 Larry A Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:21
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/107; B66C1/62; B66C1/66
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
262 words
A lifting eye arrangement disposed on a central longitudinal axis thereof and adapted for attachment to an engine block or the like comprising a pair of annular members each comprising a base portion and a cylindrical hub portion formed integrally on one side of said base portion, the outside diameter of each of said hub portions being substantially less than the corresponding outside dimension of a respective base portion, the hub portions of said members disposed in back-to-back relationship to define a common annular groove circumferentially about said hub portions and axially between said base portions, a ring member rotatably mounted in said groove and having a pair of diametrically opposed lugs extending radially outwardly therefrom beyond said members, a U-shaped lifting eye having a pair of legs each pivotally mounted on a respective one of said lugs, a flange secured on the end of each of said lugs to extend in the direction of said axis and disposed on an outboard side of a respective one of said legs, and an elongated slot formed through each leg of said lifting eye to extend in the direction of said axis along such leg, each of said lugs mounted in a respective one of said slots and wherein the axial distance between a lower end of said flange and an opposite side of a base portion of an adjacent base member, opposite to the side thereof having said hub portion thereon, is less than the axial distance between a lower end of said slot and the end of the leg carrying said slot.
Claim 2
Dependent Claim
262 words
A lifting eye arrangement disposed on a central longitudinal axis thereof and adapted for attachment to an engine block or the like comprising a pair of annular members each comprising a base portion and a cylindrical hub portion formed integrally on one side of said base portion, the outside diameter of each of said hub portions being substantially less than the corresponding outside dimension of a respective base portion, the hub portions of said members disposed in back-to-back relationship to define a common annular groove circumferentially about said hub portions and axially between said base portions, a ring member rotatably mounted in said groove and having a pair of diametrically opposed lugs extending radially outwardly therefrom beyond said members, a U-shaped lifting eye having a pair of legs each pivotally mounted on a respective one of said lugs, a flange secured on the end of each of said lugs to extend in the direction of said axis and disposed on an outboard side of a respective one of said legs, and an elongated slot formed through each leg of said lifting eye to extend in the direction of said axis along such leg, each of said lugs mounted in a respective one of said slots and wherein the axial distance between a lower end of said flange and an opposite side of a base portion of an adjacent base member, opposite to the side thereof having said hub portion thereon, is less than the axial distance between a lower end of said slot and the end of the leg carrying said slot.
Claim 3
Dependent Claim
22 words
The lifting eye arrangement of claim 1 wherein said members are at least substantially identical and said lugs are formed integrally therewith.
Claim 4
Dependent Claim
17 words
The lifting eye arrangement of claim 1 wherein said hub portions abut at flat surface portions thereof.
Claim 5
Dependent Claim
41 words
The lifting eye arrangement of claim 1 wherein one side of a base portion of at least one of said members, opposite to the side thereof having said hub portion formed thereon, is flat to provide a substantial bearing surface thereat.
Claim 6
Dependent Claim
16 words
The lifting eye arrangement of claim 1 wherein each of said lugs comprises a cylindrical bearing.
Claim 7
Dependent Claim
29 words
The lifting eye arrangement of claim 1 further comprising a notch defined on an underside of each of said lugs, radially between a respective flange and said ring member.
Claim 8
Dependent Claim
53 words
The lifting eye arrangement of claim 1 wherein the axial length of each of said slots in the direction of said axis is slightly greater than the axial length of each of said lugs taken in the direction of said axis whereby said lifting eye may be removed laterally from said ring member.
Claim 9
Dependent Claim
38 words
The lifting eye arrangement of claim 4 further comprising an engine and fastening means releasably attaching said lifting eye arrangement to a flat surface of said engine at the flat sidE of a lower one of said members.
Claim 10
Dependent Claim
30 words
The lifting eye arrangement of claim 8 wherein said fastening means comprises a single bolt projecting through aligned bores formed axially through said members and threadably attached to said engine.
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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) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |