US4893577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tow rope pylon with rotatable bushing
Assignee: MASTER CRAFT BOAT Co (TN CORPORATION)
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Filing: 1988-05-18
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Granted: 1990-01-16
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Expires: 2008-05-18
Abstract
Abstract A pylon for a tow rope for water skiing and the like includes a bushing rotatably mounted on the upper end of the pylon for reducing friction between the tow rope and the pylon. The bushing includes a cylindrical central portion and radially enlarged upper and lower ends for maintaining the tow rope on the central portion. A rod on the upper end of the pylon extends through an opening in the bushing, and a cap is threadedly attached to the rod for retaining the bushing on the rod.
Inventors
- 👤 Michael D. Jennings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:34
CPC Classifications
B; B63; B63B; B63B34/00; B63B34/60; B63B34/67
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
97 words
A pylon for a tow rope comprising: a base having upper and lower ends for mounting the pylon on a support structure, a bushing rotatably mounted on the upper end of the base, the bushing having a tubular central portion and radially enlarged upper and lower ends for restraining movement of a tow rope off of the tubular central portion, said base including an elongated body portion, a transversely enlarged support flange adjacent the upper end of the base for supporting the bushing, and a rod portion which extends through the tubular central portion of the bushing.
Claim 2
Dependent Claim
97 words
A pylon for a tow rope comprising: a base having upper and lower ends for mounting the pylon on a support structure, a bushing rotatably mounted on the upper end of the base, the bushing having a tubular central portion and radially enlarged upper and lower ends for restraining movement of a tow rope off of the tubular central portion, said base including an elongated body portion, a transversely enlarged support flange adjacent the upper end of the base for supporting the bushing, and a rod portion which extends through the tubular central portion of the bushing.
Claim 3
Dependent Claim
33 words
The structure of claim 1 including a cap positioned above the upper end of the bushing and threadedly attached to the rod portion of the base for retaining the bushing on the base.
Claim 4
Dependent Claim
30 words
The structure of claim 2 in which the cap is generally spherical and the enlarged upper end of the bushing forms a continuation of the spherical shape of the cap.
Claim 5
Dependent Claim
91 words
A pylon for a tow rope comprising: an elongated pole having a lower end adapted to be attached to a support structure and an upper end, the upper end of the pole having a transversely enlarged support flange and a cylindrical rod extending upwardly from the flange, a tubular bushing having a cylindrical opening, the bushing being rotatably supported by the support flange and the rod extending through the cylindrical opening in the bushing, and a cap above the bushing attached to the rod for retaining the bushing on the rod.
Claim 6
Dependent Claim
91 words
A pylon for a tow rope comprising: an elongated pole having a lower end adapted to be attached to a support structure and an upper end, the upper end of the pole having a transversely enlarged support flange and a cylindrical rod extending upwardly from the flange, a tubular bushing having a cylindrical opening, the bushing being rotatably supported by the support flange and the rod extending through the cylindrical opening in the bushing, and a cap above the bushing attached to the rod for retaining the bushing on the rod.
Claim 7
Dependent Claim
37 words
The structure of claim 4 in which the bushing includes a cylindrical central portion for holding a rope and radially enlarged upper and lower end portions for restraining movement of the rope off of the central portion.
Claim 8
Dependent Claim
14 words
The structure of claim 5 in which the bushing is made of polymeric material.
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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) | 1993-01-15 | 1993-07-17 | 1994-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-15 | 1997-07-17 | 1998-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-15 | 2001-07-17 | 2002-01-16 | $7700.00 | Window Closed / Lapsed |