Patent US3722827A successfully refreshed from Google Patents.
US3722827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fairlead carriage
Assignee: GEARWORKS B Ltd
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Filing: 1971-02-12
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Granted: 1973-03-27
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Expires: 1991-02-12
Abstract
Abstract A level-wind fairlead carriage is reciprocably mounted for traversing along the length of a winch drum. The carriage is provided with a fairlead sheave rotatably mounted on a bracket for movement about an axis parallel to the axis of the winch drum. The bracket is mounted for pivotal movement about a second axis which lies on a line generally tangent to the winch drum. The pitch diameter of the fairlead sheave also ends on the second axis.
Inventors
- 👤 S Hrescak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:17
CPC Classifications
B; B65; B65H; B65H54/00; B65H54/02; B65H54/28; B65H54/283; B65H54/2848
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
140 words
A fairlead carriage for a level wind winch mechanism having a winch drum rotatable about an axis and means for moving said fairlead carriage along the winch drum in timed relation with the wrapping of a cable on the drum, the fairlead carriage comprising a fairlead sheave, over which the cable passes to said drum first mounting means for mounting the sheave for rotation about a first axis parallel with said drum axis, second mounting means for mounting the fairlead sheave for pivotal movement about a second axis, said fairlead sheave having a pitch diameter terminating at said second axis, and said second axis lying on a line generally tangent to the winch drum whereby pivotal movement of said fairlead sheave about said second axis wiLl not laterally displace the cable to the winch drum passing over the fairlead sheave.
Claim 2
Dependent Claim
140 words
A fairlead carriage for a level wind winch mechanism having a winch drum rotatable about an axis and means for moving said fairlead carriage along the winch drum in timed relation with the wrapping of a cable on the drum, the fairlead carriage comprising a fairlead sheave, over which the cable passes to said drum first mounting means for mounting the sheave for rotation about a first axis parallel with said drum axis, second mounting means for mounting the fairlead sheave for pivotal movement about a second axis, said fairlead sheave having a pitch diameter terminating at said second axis, and said second axis lying on a line generally tangent to the winch drum whereby pivotal movement of said fairlead sheave about said second axis wiLl not laterally displace the cable to the winch drum passing over the fairlead sheave.
Claim 3
Dependent Claim
34 words
The carriage of claim 1 said first mounting means including a sheave mounting bracket and said second mounting means including means for mounting said sheave mounting bracket for pivotal movement about said second axis.
Claim 4
Dependent Claim
49 words
The carriage of claim 2 said sheave mounting bracket having a pair of spaced ears defining an opening around said fairlead sheave, said second mounting means including a pair of spaced front and rear guide collars and pivot posts on said ears and pivotally mounted in said guide collars.
Claim 5
Dependent Claim
40 words
The carriage of claim 3 said means for moving said fairlead carriage along said winch drum including guide bars positioned parallel to the axis of rotation of the winch drum, said guide collars being slidably mounted on said guide bars.
Claim 6
Dependent Claim
46 words
The carriage of claim 3 said pivot posts including a first pivot post remote from said winch drum and a tubular second pivot post adjacent the winch drum, the hollow interior of said second pivot post providing an opening for free movement of the cable therethrough.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |