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US 5,325,588 AGranted
Knife with multiple cutting positions
OwnerCarl E. Rogersinventor
Life of this patent
Estimating the term…
Abstract
A knife having angularly adjustable cutting positions is provided, comprising a blade having a base portion, the base portion having an outer edge including an engagement portion including a positioning mechanism for positioning the blade in multiple angular cutting positions with reference to a handle; a handle including a biased locking member for selectively engaging the positioning mechanism and fixing the blade in each of the angular cutting positions, the handle having a blade end; a spring, positioned in the handle, for biasing the locking member against the positioning mechanism; and wherein the base portion of the blade is pivotally attached to the blade end of the handle at a pivot point located within the blade end.
Claims18
A knife having angularly adjustable cutting positions, comprising:
- a. a blade having a base portion, said base portion having an outer edge including an engagement portion including a positioning means for positioning said blade in a plurality of angular cutting positions with reference to a handle, said positioning means comprising a tail portion extending from said base portion of said blade and into said handle, said tail portion having an upper surface and a lower surface;
- b. said handle including a biased engagement means for selectively engaging said positioning means and fixing said blade in each of said angular cutting positions, said handle having a blade end, said engagement means comprising a locking member slidably positioned in said handle between said resilient means and said base portion of said blade, said locking member having an upper surface matingly engageable with said lower surface of said tail portion in a first cutting position, and a lower surface matingly engageable with said upper surface of said tail portion in a second cutting position, said locking member further having a means for retracting said locking member against a resilient means and away from engagement with said tail portion so as to allow said blade to be pivoted between said first cutting position and said second cutting position;
- and
- said resilient means for biasing said engagement means against said positioning means, said resilient means being positioned in said handle;
- and
- wherein said base portion of said blade is pivotally attached to said blade end of said handle at a pivot point located within said base portion.
3 more elements
A knife having angularly adjustable cutting positions, comprising:
- a. a blade having a base portion, said base portion having an outer edge including an engagement portion including a positioning means for positioning said blade in a plurality of angular cutting positions with reference to a handle, said positioning means comprising a plurality of slots spaced apart on said outer edge of said blade and extending into said base portion;
- b. said handle including a biased engagement means for selectively engaging said positioning means and fixing said blade in each of said angular cutting positions, said handle having a blade end, said engagement means comprising a locking member positioned in said handle, said locking member having a base end, an engagement end and an engagement tab extending from said engagement end, said engagement tab being selectively and matingly insertable into a first of said slots in a first cutting position, and selectively and matingly insertable into a second of said slots in a second cutting position, said locking member being positioned in said handle such that a resilient means is biased against said locking member so as to urge said tab against said outer edge of said blade and into one of said slots when aligned therewith, said locking member further having a means for retracting said locking member against said resilient means and away from engagement with said outer edge so as to allow said blade to be pivoted between said cutting positions;
- c. said resilient means for biasing said engagement means against said positioning means, said resilient means being interposed between a fixed point on said handle and said base end of said locking member, and said locking member is slidably positioned in said handle such that said tab extends generally axially from said locking member and is axially urged against said outer edge of said base portion of said blade and into one of said slots when aligned therewith;
- and
- wherein said base portion of said blade is pivotally attached to said blade end of said handle at a pivot point located within said base portion.
2 more elements
A knife having angularly adjustable cutting positions, comprising:
- a. a blade having a base portion, said base portion having an outer edge including an engagement portion including a positioning means for positioning said blade in a plurality of angular cutting positions with reference to a handle, said positioning means comprising a plurality of slots spaced apart on said outer edge of said blade and extending into said base portion;
- b. said handle including a biased engagement means for selectively engaging said positioning means and fixing said blade in each of said angular cutting positions, said handle having a blade end, said engagement means comprising a locking member positioned in said handle, said locking member having a base end, an engagement end and an engagement tab extending from said engagement end, said engagement tab being selectively and matingly insertable into a first of said slots in a first cutting position, and selectively and matingly insertable into a second of said slots in a second cutting position, said locking member being positioned in said handle such that a resilient means is biased against said locking member so as to urge said tab against said outer edge of said blade and into one of said slots when aligned therewith, said locking member further having a means for retracting said locking member against said resilient means and away from engagement with said outer edge so as to allow said blade to be pivoted between said cutting positions, said handle further including means, in operational connection with said second slot, for covering said second slot when said blade is fixed in said first cutting position;
- c. said resilient means for biasing said engagement means against said positioning means, said resilient means being positioned in said handle;
- and
- wherein said base portion of said blade is pivotally attached to said blade end of said handle at a pivot point located within said base portion.
2 more elements
Dependencies are inferred from the claim text.