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Publication numberUS2154040 A
Publication typeGrant
Publication dateApr 11, 1939
Filing dateFeb 8, 1938
Priority dateFeb 8, 1938
Publication numberUS 2154040 A, US 2154040A, US-A-2154040, US2154040 A, US2154040A
InventorsDaniel Frisendahl
Original AssigneeDaniel Frisendahl
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 2154040 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

2 Slleets--Shfeel l D. FRlsENDAHL BOAT Filed Feb. e, 19:58

April 11, 1939.

Inventor E25 rbaZa/Z V By man orneys April 411, 1939 D. FRlsENDAl-IL 2,154,040

BOAT Filed Feb. 8, 1958 2 Sheets-Sheet 2 Inventor .l @l-Senda ZZ Patented Apr.' 11, 1939 UNITEDv STATES PATENT oFF-ICE 1' Claim.

This invention relates to boats and an object of the invention is to provide a boat that will be extremely safe, and which accordingly will be found especially desirable when one is engaged 5 in duck hunting.

A further. object of the invention is to provide a boat which will be light in weight and consequently can be readily transported from place to place.

A further object of the invention is to provide a boat of the type embodying air chambers secured to the frame of the boat in `an efcient manner. 4

A further object of the invention is to generally improve upon pneumatic boats as now known or used.

The invention together vwith its objects and .advantages will be best understood Vfrom a study of the following description taken in connection with the accompanying drawings wherein:

Figure 1 is a top plan view of the boat,

Figure 2 is a side elevational view thereof with certain parts broken away and shown in section. and

with the present invention is substantially ovale.

shaped and comprises a iiooring 5, which flooring or bottom 5 is composed of a plurality of longitudinally extending planks connected together -at intervals through the medium of cross cleats 6. Further the boat comprises a continuous wall I that is of skeleton frame structure and consists of an endless series of relatively spaced posts or standards 8 of any suitable length and supporting at their upper ends a continuous rail 9.

'I'he frame structure ofthe boat as just de- 40 scribed is arranged within the confines of endless inflatable tubes or air chambersl I0, II; the lower tube or air chamber III being substantially, and preferably, twice the size of the upper air tube or chamber II. 4.-, 4As clearly shown in Figure 3 there is provided for the tube III a casing I2`of fabric such as canvass. duck or the like, and at one side thereof the casing I2 is secured to the underside of the oor or bottom 5 of the boat adjacent the marginal edge of the floor or bottom through the medium oi' screws or other suitable fastening elements I3.

Figure 3 is an enlarged detail sectional view t The tube I I is confined in position through the medium of a sheet I4 of canvass, duck-or other suitable material, and at one edge thereof the sheet I4 is folded as suggested at I5 and secured between the rail 9 and retaining strips I6, through Ii the medium of nails or other suitable fastening elements I1.

At the lower or opposite edge thereof the retaining sheet I4 is stitched to the outer side of the casing I2 as at I5. In this connection it will be noted that the casing I2 at the outer side thereof is folded so as to provide a cleat I6 to which said lower edge of the sheet Il is stitched.

Also, the boat is provided, as shown, vwith oar locks I8, and at one end thereof is also equipped l with an eye bolt I9 to which a cable or the like may be secured, and which cable may be used for tying the boat to a stake or forany one of numerous purposes which will readily present themselves to the user.

Also,the air chambers or inflatable .tubes I0 and II are capable of independent inflation at valves 20, 2|. As clearly shown in Figures 2 and 3 when the tubesor chambers I0 and Il are inflated the lower tube or chamber I I will support the bottom 5 of the boat in a raised position, providing an item of safety of no small importance.

It is thought that the construction, utility and advantages of a boat embodying the features'fgof the present invention will be clearly understood without a further description thereof.

Having thus described the invention what is i claimed as new is:

A boat comprising a substantially oval-shaped 35 rigid floor, rigid upstanding walls secured on the oor and including coaming strips at the upper edges thereof, superimposed endless inatable tubes surrounding the walls with the lowermost tube of an increased size over the size of the tube disposed thereabove and extending below the floor, a cover surrounding the lowermost tube and extending therefrom and secured on the. under face of the oor, said cover including a beading on the outer side of the lower tube, a sheet of fabric having one edge secured on the beading and extending over the upper tube and `disposed over the coaming strips and folded upon itself, and clamping strips securing the folded portion of the fabric on the coaming strips.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2876467 *Oct 25, 1955Mar 10, 1959Lund Axel PCollapsible raft
US3049731 *Aug 12, 1958Aug 21, 1962Klepper Werke FaSupport structure for inflated tubes in collapsible boats
US4928619 *Nov 29, 1988May 29, 1990Cochran William HModular rigid inflatable aquatic vessel structure
US5184566 *Jun 21, 1990Feb 9, 1993Cochran William HBuoyant boat with girder box
US5643031 *Apr 29, 1996Jul 1, 1997X-Stream Unlimited, Inc.Aquatic vehicle
US6024042 *Feb 17, 1998Feb 15, 2000Brunswick CorporationRib rigid hull inflatable boat with improved deck drainage and support construction
DE1037305B *May 11, 1956Aug 21, 1958Hans HartSchlauchboot
WO1991019639A1 *Jun 19, 1991Dec 26, 1991Cochran William HBuoyant boat with girder box
U.S. Classification114/345
International ClassificationB63B7/00, B63B7/08
Cooperative ClassificationB63B7/082
European ClassificationB63B7/08B