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US3881442A Expired / Lapsed US ⏱️ 0.0 years remaining

Motor mount for an inflatable boat

Assignee: United States Department of the Navy
•
Filing: 1974-06-28
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Granted: 1975-05-06
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Expires: 1994-06-28
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Abstract

Abstract A motor mount for an inflatable boat of the type which has a flat bottom, and bow, side, and stern tubular gunwale sections. The mount includes a resilient coiled plate which, in its relaxed condition, is capable of receiving the stern gunwale in a deflated condition. The coiled plate is capable of expanding outwardly when the stern gunwale is inflated into its tubular form inside the coiled plate. Upon inflation of the boat the coiled plate tightly engages both sides of the flat bottom of the boat so that the coiled plate becomes rigidly mounted thereto. Another plate can then be mounted to the coiled plate for receiving a boat motor.

Inventors

  • 👤 Ronald L Seiple

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 15:58
CPC Classifications
B; B63; B63B; B63B7/00; B63B7/06; B63B7/08; B63B7/085; B63B7/087; B63H; B63H20/00; B63H20/02; B63H20/06

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 108 words
A motor mount for an inflatable boat of the type having a flat bottom, bow, and inflatable side and stern tubular gunwale sections comprising: a resilient coiled plate which, in its relaxed condition, is capable of receiving the stern gunwale in a deflated condition; said coiled plate being capable of expanding outwardly when the stern gunwale is inflated into its tubular form inside the coiled plate; said coiled plate upon expansion tightly engaging both bottom and top surfaces of the flat bottom of the boat so that the coiled plate becomes rigidly mounted to the boat; and means mounted to the coiled plate for receiving a boat motor.
Claim 2
Dependent Claim 108 words
A motor mount for an inflatable boat of the type having a flat bottom, bow, and inflatable side and stern tubular gunwale sections comprising: a resilient coiled plate which, in its relaxed condition, is capable of receiving the stern gunwale in a deflated condition; said coiled plate being capable of expanding outwardly when the stern gunwale is inflated into its tubular form inside the coiled plate; said coiled plate upon expansion tightly engaging both bottom and top surfaces of the flat bottom of the boat so that the coiled plate becomes rigidly mounted to the boat; and means mounted to the coiled plate for receiving a boat motor.
Claim 3
Dependent Claim 15 words
A motor mount as claimed in claim 1 including: said plate spiralling more than 360*.
Claim 4
Dependent Claim 63 words
A motor mount as claimed in claim 1 including: the motor receiving means being a bent plate which is fixed at its opposite ends to the coiled plate so as to extend aft thereof; said bent plate having a top portion which is cut out to receive the motor brackets; and means for connecting straps to said top portion of the bent plate.
Claim 5
Dependent Claim 15 words
A motor mount as claimed in claim 3 including: said plate spiralling more than 360*.
Claim 6
Dependent Claim 200 words
A motor mount for an inflatable boat of the type having a flat bottom, and inflatable bow, side, and stern tubular gunwale sections comprising: a resilient coiled plate which has inside and outside end portions and an open space along the central axis thereof; the outside surface of the inside end portion being capable of engaging the inside surface of the outside end portion along a line which is substantially parallel to the central axis of the coiled plate; said coiled plate being capable of receiving the stern gunwale of the boat within said open space in a deflated condition with the flat bottom of the boat extending between the inside and outside end portions of the coiled plate in a plane which includes the line of engagement; and means mounted to the coiled plate for receiving a boat motor, whereby upon insertion of the stern gunwale in a deflated condition in the coiled plate and then inflation of the boat, the inside and outside end portions of the coiled plate will tightly grasp top and bottom surfaces of the flat bottom of the boat so as to cinch the motor mount from rotation when a motor is mounted thereon.
Claim 7
Dependent Claim 200 words
A motor mount for an inflatable boat of the type having a flat bottom, and inflatable bow, side, and stern tubular gunwale sections comprising: a resilient coiled plate which has inside and outside end portions and an open space along the central axis thereof; the outside surface of the inside end portion being capable of engaging the inside surface of the outside end portion along a line which is substantially parallel to the central axis of the coiled plate; said coiled plate being capable of receiving the stern gunwale of the boat within said open space in a deflated condition with the flat bottom of the boat extending between the inside and outside end portions of the coiled plate in a plane which includes the line of engagement; and means mounted to the coiled plate for receiving a boat motor, whereby upon insertion of the stern gunwale in a deflated condition in the coiled plate and then inflation of the boat, the inside and outside end portions of the coiled plate will tightly grasp top and bottom surfaces of the flat bottom of the boat so as to cinch the motor mount from rotation when a motor is mounted thereon.
Claim 8
Dependent Claim 16 words
A motor mount as claimed in claim 5 including: said coiled plate spiralling more than 360*.
Claim 9
Dependent Claim 63 words
A motor mount as claimed in claim 6 including: the motor receiving means being a bent plate which is fixed at its opposite ends to the coiled plate so as to extend aft thereof; said bent plate having a top portion which is cut out to receive the motor brackets; and means for connecting straps to said top portion of the bent plate.

References Cited (Backward Citations)

US2150420A Cited
US2497490A Cited
US2468287A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-05-05 1978-11-04 1979-05-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-05-05 1982-11-04 1983-05-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-05-05 1986-11-04 1987-05-06 $7700.00 Window Closed / Lapsed

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