Back to results
US 5,216,812 AGranted
Shellfish opening knife utensil
OwnerDavid E. Lyonsinventor
Life of this patent
Estimating the term…
Abstract
A knife utensil for separating shell members of a mollusk comprised of a bar member having a blade portion mounted to retaining members forming a handle and formed with an arcuate upper honed edge and a concave-shaped lower honed edge defining a point at a free end disposed between a centerline of a bar member and a point at which the upper surface meets the retaining members.
Claims7
As knife utensil for separating shell members of a mollusk, which comprises:
- metallic bar member having a blade portion and mounted to retaining member forming a handle of said knife utensil, said blade portion armed with an arcuate upper honed edge and a concave lower honed edge extending rom said handle portion to form a free end point disposed between a center line of said bar member and a meeting point of contact between said bar member with said retaining member, wherein D.sub.2 is the distance between the said end point and the centerline of the said bar, D.sub.3 is the distance between the said end point and the said arcuate upper honed edge of the bar and D.sub.1 is the distance between the centerline of said bar and the said arcuate upper honed edge of the said bar, wherein D.sub.2 is less than D.sub.3 and wherein D.sub.2 +D.sub.3 =D.sub.1.
Dependencies are inferred from the claim text.