Patent US4061100A successfully refreshed from Google Patents.
US4061100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion kit for a sailboat
Assignee: Individual
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Filing: 1977-02-11
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Granted: 1977-12-06
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Expires: 1997-02-11
Abstract
Abstract There is disclosed a kit for converting a sailboat to a vehicle that is capable of traversing a hard surface such as ice, or the like. The kit includes an elongated spar assembly that is adapted to be transversely mounted on the hull of the sailboat intermediate the ends thereof. The outboard ends of the spar assembly are laterally spaced from the port and starboard sides of the sailboat. The spar assembly is removably secured to the hull of the sailboat and includes first and second surface engaging structures, which may be in the form of blades, mounted on the outboard ends thereof. There is a third surface engaging structure, which may also be in the form of a blade, that is coupled to the tiller of the sailboat beneath the stern end thereof.
Inventors
- 👤 Frank J. Muhlfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:05
CPC Classifications
B; B62; B62B; B62B15/00; B62B15/001; B62B15/002
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
188 words
A kit for converting a sailboat to a vehicle capable of traversing a hard surface such as ice or the like, said kit comprising, an elongated spar assembly adapted to be removably mounted on the hull of the sailboat intermediate the bow and stern ends thereof with the longitudinal axis of the spar assembly being substantially perpendicular to the longitudinal axis of the sailboat and with the outboard ends of said spar assembly being laterally spaced from the port and starboard sides of the sailboat, said spar assembly including a deck plate mounted across the upper surface of the hull and extending laterally therebeyond, a backing plate mounted across the lower surface of the hull and extending laterally therebeyond and fastener means for coupling the extending ends of said deck plate and said backing plate to each other whereby said spar assembly may be removably secured to the hull of the sailboat; first and second surface engaging means mounted on said spar assembly proximate the outboard ends thereof; and third surface engaging means adapted to be coupled to the tiller of the sailboat beneath the stern end thereof.
Claim 2
Dependent Claim
188 words
A kit for converting a sailboat to a vehicle capable of traversing a hard surface such as ice or the like, said kit comprising, an elongated spar assembly adapted to be removably mounted on the hull of the sailboat intermediate the bow and stern ends thereof with the longitudinal axis of the spar assembly being substantially perpendicular to the longitudinal axis of the sailboat and with the outboard ends of said spar assembly being laterally spaced from the port and starboard sides of the sailboat, said spar assembly including a deck plate mounted across the upper surface of the hull and extending laterally therebeyond, a backing plate mounted across the lower surface of the hull and extending laterally therebeyond and fastener means for coupling the extending ends of said deck plate and said backing plate to each other whereby said spar assembly may be removably secured to the hull of the sailboat; first and second surface engaging means mounted on said spar assembly proximate the outboard ends thereof; and third surface engaging means adapted to be coupled to the tiller of the sailboat beneath the stern end thereof.
Claim 3
Dependent Claim
34 words
A kit according to claim 1 wherein there is further provided a block positioned intermediate the lower surface of the hull and the surface of said backing plate that is in confronting opposition thereto.
Claim 4
Dependent Claim
24 words
A kit according to claim 2 wherein the portion of said block that is in opposition with the hull is shaped to conform thereto.
Claim 5
Dependent Claim
21 words
A kit according to claim 2 wherein said block is made of styrofoam and includes a covering layer of glass fibers.
Claim 6
Dependent Claim
40 words
The kit according to claim 1 wherein said spar assembly further includes an elongated bar rigidly secured to said backing plate and said first and said second surface engaging means are coupled, respectively, proximate the outboard ends of said bar.
Claim 7
Dependent Claim
42 words
The kit according to claim 5 wherein said first, said second and said third surface engaging means are blades and wherein there is further included first and second clamping means for removably coupling said first and said second blades to said bar.
Claim 8
Dependent Claim
74 words
A kit according to claim 6 wherein said bar is T-shaped having a vertical leg and a horizontal leg and wherein said first and said second clamping means each comprise a top plate positioned on said horizontal leg of said bar and an L-shaped bottom plate having a first leg that includes a slot for receiving said vertical leg of said bar and a second leg that includes means for mounting said blade thereto.
Claim 9
Dependent Claim
69 words
A kit according to claim 7 wherein each said first and second blade and said second leg of each said bottom plate include cooperating openings therein and wherein said mounting means for each said blade comprises a pivot pin extending through the said blade and said second leg of each said bottom plate whereby said blade is permitted some limited angular displacement about the axis of said pivot pin.
Claim 10
Dependent Claim
43 words
A kit according to claim 8 wherein said second leg of said bottom plate is defined by two spaced apart sections and said blade is positioned therebetween whereby angular displacement of said blade is limited by said first leg of said bottom plate.
Claim 11
Dependent Claim
47 words
A kit according to claim 1 wherein there is further included a bow cover, a stern sheath and tensioning cables extending between said bow cover and said spar assembly and between said stern sheath and said spar assembly on the port and starboard sides of the vehicle.
Claim 12
Dependent Claim
19 words
A kit according to claim 10 wherein means are included for varying the force exerted by said tensioning cables.
Claim 13
Dependent Claim
24 words
A kit according to claim 1 wherein coupling means are included for adjustably positioning said third surface engaging means with respect to the hull.
Claim 14
Dependent Claim
96 words
A kit according to claim 12 wherein said coupling means comprises an elongated steering column having one end thereof coupled to the tiller and the other end thereof coupled to said third surface engaging means, said steering column including a plurality of axially spaced apart holes therein, there being further included a pin selectively positioned in one of said holes and arranged to support the stern end of the vessel whereby the space between said third surface engaging means and the stern of the vessel may be varied depending upon which of said holes is selected.
Claim 15
Dependent Claim
138 words
In a kit for converting a sailboat to an ice sailboat, a plurality of ice surface engaging means, a spar assembly for mounting to the hull of a sailboat intermediate the bow and stern and for extending beyond the sides of the hull for supporting one of said ice surface engaging means below and on the port and starboard sides of the hull, a stern member for mounting to the stern of the hull of the sailboat and supporting another of said ice surface engaging means at and below the stern of the hull, a bow member for mounting in the bow of the hull of the sailboat, and cables for connecting between said spar assembly and said bow member and said stern member to secure said spar assembly, bow member and stern members to the sailboat hull.
Claim 16
Dependent Claim
138 words
In a kit for converting a sailboat to an ice sailboat, a plurality of ice surface engaging means, a spar assembly for mounting to the hull of a sailboat intermediate the bow and stern and for extending beyond the sides of the hull for supporting one of said ice surface engaging means below and on the port and starboard sides of the hull, a stern member for mounting to the stern of the hull of the sailboat and supporting another of said ice surface engaging means at and below the stern of the hull, a bow member for mounting in the bow of the hull of the sailboat, and cables for connecting between said spar assembly and said bow member and said stern member to secure said spar assembly, bow member and stern members to the sailboat hull.
Claim 17
Dependent Claim
32 words
In a kit as in claim 14, said spar assembly having an opening defined therein to accommodate the mast of the sailboat therethrough when the same is mounted to a sailboat hull.
Claim 18
Dependent Claim
44 words
In a kit as in claim 15, said spar assembly including upper and lower members each for mounting to the upper and lower surfaces of a hull of a sailboat, and means to releasably fasten the same together to the hull of a sailboat.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-05 | 1981-06-06 | 1981-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-05 | 1985-06-06 | 1985-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-05 | 1989-06-06 | 1989-12-06 | $7700.00 | Window Closed / Lapsed |