Back to results
US 4,044,416 AGranted
Surfboard with adjustable fin
OwnerCharles A. Brewer, Richard A. Brewerinventors
Life of this patent
Estimating the term…
Abstract
A fin for a surfboard has a longitudinal fin base. A fin holder in the underside of the surfboard defines an elongate channel extending lengthwise of the surfboard for receiving the fin base for lengthwise adjustment of the fin relative to the surfboard. A clamp is slidable lengthwise in that channel and is engageable with the fin holder and the fin base for releasably retaining the fin relative to the surfboard.
Claims62
A surfboard structure comprising in combination:
- a surfboard;
- a fin for said surfboard having a longitudinal fin base including a bifurcated end portion having a slot extending parallel to said fin;
- a fin holder in the underside of said surfboard defining an elongate channel extending lengthwise of said surfboard for receiving said fin base for lengthwise adjustment of said fin relative to said surfboard;
- means slidable lengthwise in said channel and engageable with said fin holder and fin base for releasably retaining said fin relative to said surfboard, said retaining means including a clamp having a mouth portion for receiving said bifurcated end portion and having a web at said mouth portion extending parallel to said fin and fitting within said slot in the bifurcated end;
- and
- means operatively associated with said fin holder and slidable means for incrementally varying the location of said slidable means, said means for incrementally varying said location including means for providing a plurality of finite steps along a portion of said fin holder, and for selectively arresting sliding movement of said slidable means in any of said finite steps.
3 more elements
A surfboard structure comprising in combination:
- a surfboard;
- a fin for said surfboard having a longitudinal fin base having first and second end portions;
- a fin holder in the underside of said surfboard defining an elongate channel extending lengthwise of said surfboard for receiving said fin base for lengthwise adjustment of said fin relative to said surfboard;
- and
- means engageable with said fin holder and fin base for releasably retaining said fin relatively to said surfboard at variable locations, said retaining means including a clamp having a mouth portion for receiving one of said first and second end portions of said fin base and having a manually engageable top portion projecting out of said fin holder and reaching over said one end portion of said fin base into engagement with said one end portion, means for mounting said clamp for lengthwise sliding movement in said fin holder, and means for selectively arresting movement of said clamp in said fin holder.
2 more elements
An article of manufacture for adjustably mounting a fin having a longitudinal fin base including a bifurcated end portion having a slot extending parallel to said fin at the underside of a surfboard, comprising in combination:
- a fin holder adapted to be mounted in the underside of said surfboard and defining an elongate channel extending lengthwise of said surfboard for receiving said fin base for lengthwise adjustment of said fin relative to said surfboard;
- means slidable lengthwise in said channel and engageable with said fin holder and fin base for releasably retaining said fin relative to said surfboard, said retaining means including a clamp having a mouth portion for receiving said bifurcated end portion and having a web at said mouth portion extending parallel to said fin and fitting within said slot in the bifurcated end portion when said fin base is in said fin holder;
- and
- means operatively associated with said fin holder and slidable means for incrementally varying the location of said slidable means, said means for incrementally varying said location including means for providing a plurality of finite steps along a portion of said fin holder, and for selectively arresting sliding movement of said slidable means in any of said finite steps.
1 more element
An article of manufacture for adjustably mounting a fin including a longitudinal fin base having first and second end portions at the underside of a surfboard comprising in combination:
- a fin holder adapted to be mounted in the underside of said surfboard and defining an elongate channel extending lengthwise of said surfboard for receiving said fin base for lengthwise adjustment of said fin relative to said surfboard;
- and
- means engageable with said fin holder and fin base for releasably retaining said fin relatively to said surfboard at variable locations, said retaining means including a clamp having a mouth portion for receiving one of said first and second end portions of said fin base and having a manually engageable top portion projecting out of said fin holder and reaching over said one end portion for engagement with said one end portion when said fin base is in said fin holder, means for mounting said clamp for lengthwise sliding movement in said fin holder, and means for selectively arresting movement of said clamp in said fin holder.
A surfboard structure comprising in combination:
- a surfboard;
- a fin for said surfboard having a longitudinal fin base;
- a fin holder in the underside of said surfboard defining an elongate channel extending lengthwise of said surfboard for receiving said fin base for lengthwise adjustment of said fin relative to said surfboard;
- means slidable lengthwise in said channel and engageable with said fin holder and fin base for releasably retaining said fin relative to said surfboard;
- and
- means operatively associated with said fin holder and slidable means for incrementally varying the location of said slidable means including a plurality of detent means distributed along a portion of said fin holder for providing a plurality of finite steps along said fin holder portion, means on said slidable means for selectively engaging said detent means and arresting sliding movement of said slidable means in any of said finite steps and resilient means connected to said slidable means for biasing said detent engaging means against said detent means.
3 more elements
A surfboard structure comprising in combination:
- a surfboard;
- a fin for said surfboard having a longitudinal fin base;
- a fin holder in the underside of said surfboard defining an elongate channel extending lengthwise of said surfboard for receiving said fin base for lengthwise adjustment of said fin relative to said surfboard;
- means slidable lengthwise in said channel and engageable with said fin holder and fin base for releasably retaining said fin relative to said surfboard;
- and
- means operatively associated with said fin holder and slidable means for incrementally varying the location of said slidable means including a plurality of detent teeth distributed along a portion of said fin holder and extending at an angle to the direction of said lengthwise adjustment of said fin for providing a plurality of finite steps along said fin holder portion, means on said slidable means for selectively engaging said detent teeth and arresting sliding movement of said slidable means in any of said finite steps, and resilient means connected to said slidable means for biasing said detent teeth engaging means against said detent teeth.
3 more elements
A surfboard structure comprising in combination:
- a surfboard;
- a fin for said surfboard having a longitudinal fin base;
- a fin holder in the underside of said surfboard defining an elongate channel extending lengthwise of said surfboard for receiving said fin base for lengthwise adjustment of said fin relative to said surfboard;
- means slidable lengthwise in said channel and engageable with said fin holder and fin base for releasably retaining said fin relative to said surfboard;
- and
- means operatively associated with said fin holder and slidable means for incrementally varying the location of said slidable means including a plurality of meshing first and second teeth on a portion of said fin holder and on said slidable means, respectively, for providing a plurality of finite steps along said fin holder portion, and for selectively arresting sliding movement of said slidable means in any of said finite steps, and resilient means for biasing said first and second teeth into releasable mutual engagement.
3 more elements
A surfboard structure comprising in combination:
- a surfboard;
- a fin for said surfboard having a longitudinal fin base having first and second end portions;
- a fin holder in the underside of said surfboard defining an elongate channel extending lengthwise of said surfboard for receiving said fin base for lengthwise adjustment of said fin relative to said surfboard;
- and
- means engageable with said fin holder and fin base for releasably retaining said fin relatively to said surfboard at variable locations, said retaining means including a clamp having a mouth portion for receiving one of said first and second end portions of said fin base, means for mounting said clamp for lengthwise sliding movement in said fin holder, means for selectively arresting movement of said clamp in said fin holder including detent means distributed along a portion of said fin holder, means on said clamp for selectively engaging said detent means and for selectively arresting movement of said clamp, and resilient means connected to said clamp for biasing said detent engaging means against said detent means.
2 more elements
A surfboard structure comprising in combination:
- a surfboard;
- a fin for said surfboard having a longitudinal fin base having first and second end portions;
- a fin holder in the underside of said surfboard defining an elongate channel extending lengthwise of said surfboard for receiving said fin base for lengthwise adjustment of said fin relative to said surfboard;
- and
- means engageable with said fin holder and fin base for releasably retaining said fin relatively to said surfboard at variable locations, said retaining means including a clamp having a mouth portion for receiving one of said first and second end portions of said fin base, means for mounting said clamp for lengthwise sliding movement in said fin holder, means for selectively arresting movement of said clamp in said fin holder including detent teeth distributed along a portion of said fin holder and extending at an angle to the direction of said lengthwise adjustment, means on said clamp for selectively engaging said detent teeth and for selectively arresting movement of said clamp, and resilient means connected to said clamp for biasing said detent teeth engaging means against said detent teeth.
2 more elements
A surfboard structure comprising in combination:
- a surfboard;
- a fin for said surfboard having a longitudinal fin base having first and second end portions;
- a fin holder in the underside of said surfboard defining an elongate channel extending lengthwise of said surfboard for receiving said fin base for lengthwise adjustment of said fin relative to said surfboard;
- and
- means engageable with said fin holder and fin base for releasably retaining said fin relatively to said surfboard at variable locations, said retaining means including a clamp having a mouth portion for receiving one of said first and second end portions of said fin base, means for mounting said clamp for lengthwise sliding movement in said fin holder, means for selectively arresting movement of said clamp in said fin holder including a plurality of meshing first and second teeth on said fin holder and said clamp, respectively, for providing a plurality of finite steps along a portion of said fin holder and for selectively arresting movement of said clamp in any of said finite steps, and resilient means for biasing said first and second teeth into releasable mutual engagement.
2 more elements
An article of manufacture for adjustably mounting a fin having a longitudinal fin base at the underside of a surfboard, comprising in combination:
- a fin holder adapted to be mounted in the underside of said surfboard and defining an elongate channel extending lengthwise of said surfboard for receiving said fin base for lengthwise adjustment of said fin relative to said surfboard;
- means slidable lengthwise in said channel and engageable with said fin holder and fin base for releasably retaining said fin relative to said surfboard;
- and
- means operatively associated with said fin holder and slidable means for incrementally varying the location of said slidable means, said means for incrementally varying said location including a plurality of detent means for providing a plurality of finite steps along a portion of said fin holder, means on said slidable means for selectively engaging said detent means and arresting sliding movement of said slidable means in any of said finite steps, and resilient means connected to said slidable means for biasing said detent engaging means against said detent means.
1 more element
An article of manufacture for adjustably mounting a fin having a longitudinal fin base at the underside of a surfboard, comprising in combination:
- a fin holder adapted to be mounted in the underside of said surfboard and defining an elongate channel extending lengthwise of said surfboard for receiving said fin base for lengthwise adjustment of said fin relative to said surfboard;
- means slidable lengthwise in said channel and engageable with said fin holder and fin base for releasably retaining said fin relative to said surfboard;
- and
- means operatively associated with said fin holder and slidable means for incrementally varying the location of said slidable means, said means for incrementally varying said location including a plurality of detent teeth distributed along said fin holder and extending at an angle to the direction of said lengthwise adjustment of said fin for providing a plurality of finite steps along a portion of said fin holder, means on said slidable means for selectively engaging said detent teeth to arrest sliding movement of said slidable means in any of said finite steps, and resilient means connected to said slidable means for biasing said detent teeth engaging means against said detent teeth.
1 more element
An article of manufacture for adjustably mounting a fin having a longitudinal fin base at the underside of a surfboard, comprising in combination:
- a fin holder adapted to be mounted in the underside of said surfboard and defining an elongate channel extending lengthwise of said surfboard for receiving said fin base for lengthwise adjustment of said fin relative to said surfboard;
- means slidable lengthwise in said channel and engageable with said fin holder and fin base for releasably retaining said fin relative to said surfboard;
- and
- means operatively associated with said fin holder and slidable means for incrementally varying the location of said slidable means, said means for incrementally varying said location including a plurality of meshing first and second teeth on said fin holder and on said slidable means, respectively, and resilient means for biasing said first and second teeth into releasable mutual engagement.
1 more element
An article of manufacture for adjustably mounting a fin including a longitudinal fin base having first and second end portions at the underside of a surfboard comprising in combination:
- a fin holder adapted to be mounted in the underside of said surfboard and defining an elongate channel extending lengthwise of said surfboard for receiving said fin base for lengthwise adjustment of said fin relative to said surfboard;
- and
- means engageable with said fin holder and fin base for releasably retaining said fin relatively to said surfboard at variable locations, said retaining means including a clamp having a mouth portion for receiving one of said first and second end portions of said fin base, means for mounting said clamp for lengthwise sliding movement in said fin holder, and means for selectively arresting movement of said clamp in said fin holder including detent means distributed along a portion of said fin holder, means on said clamp for selectively engaging said means and for selectively arresting movement of said clamp, and resilient means connected to said clamp for biasing said detent engaging means against said detent means.
An article of manufacture for adjustably mounting a fin including a lontitudinal fin base having first and second end portions at the underside of a surfboard comprising in combination:
- a fin holder adapted to be mounted in the underside of said surfboard and defining an elongate channel extending lengthwise of said surfboard for receiving said fin base for lengthwise adjustment of said fin relative to said surfboard;
- and
- means engageable with said fin holder and fin base for releasably retaining said fin relatively to said surfboard at variable locations, said retaining means including a clamp having a mouth portion for receiving one of said first and second end portions of said fin base, means for mounting said clamp for lengthwise sliding movement in said fin holder, and means for selectively arresting movement of said clamp in said fin holder including detent teeth distributed along a portion of said fin holder and extending at an angle to the direction of said lengthwise adjustment, means on said clamp for selectively engaging said detent teeth and for selectively arresting movement of said clamp, and resilient means connected to said clamp for biasing said detent teeth engaging means against said detent teeth.
An article of manufacture for adjustably mounting a fin including a longitudinal fin base having first and second end portions at the underside of a surfboard comprising in combination:
- a fin holder adapted to be mounted in the underside of said surfboard and defining an elongate channel extending lengthwise of said surfboard for receiving said fin base for lengthwise adjustment of said fin relative to said surfboard;
- and
- means engageable with said fin holder and fin base for releasably retaining said fin relatively to said surfboard at variable locations, said retaining means including a clamp having a mouth portion for receiving one of said first and second end portions of said fin base, means for mounting said clamp for lengthwise sliding movement in said fin holder, means for selectively arresting movement of said clamp in said fin holder including a plurality of meshing first and second teeth on said fin holder and said clamp, respectively, for providing a plurality of finite steps along a portion of said fin holder and for selectively arresting movement of said clamp in any of said finite steps, and resilient means for biasing said first and second teeth into releasable mutual engagement.
Dependencies are inferred from the claim text.