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US3869792A Expired / Lapsed US ⏱️ 0.0 years remaining

Finger grip-contoured molded scissors

Assignee: Individual
•
Filing: 1974-01-28
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Granted: 1975-03-11
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Expires: 1994-01-28
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Abstract

Abstract In a preferred embodiment of the invention, there is provided scissors of the type in which the shank of the blade element terminates at its handle-end portion thereof short of defining any rings, and has mounted on each shank stub end a fully selfsupporting ring structure, the improvements being the spaciousness of each of the rings provided by substantially lineally non-curved passage ring side walls together with the shank-end portion of the oval elongated ring having the passage thereof extending on a major slant and defining a curved indexfinger recess adjacent the upper and lower surfaces of the oval ring with each recess being slanted toward the handle-mounting shank portion of the blade element at the respective upper and lower surfaces, together with the thumb ring being shaped such as to define narrowing slot for the thumb on a major slant at the lower mouth-forming side adjacent the respective handle-mounting shank portion of the blade element thereof at the end of the thumb-ring passage nearest the respective handle-mounting shank portion of the blade element thereof, with the terminal portion of the blade back side edge opposite from the cutting forward edge being shaped to define a broad body blade portion between the blade back side edge and the cutting forward edge and to define an exagerated roundness extending from the back side edge to the cutting forward edge of the blade element on which the elongated oval ring is mounted as a plastic unitary selfsupporting ring, the thumb-mounting ring also being plastic and unitary and self-supporting, the respective rings being mold mounted onto blunt stub ends of the shanks of the respective blade elements of the scissors. By the combination of the above noted features, there is provided improved control and improved hand-gripping possibilities of each of the respective rings, during the cutting operation utilizing the scissors. This is possible by virtue of the improved seat-defining rings''s walls and more spacious rings resulting from lineally extending passage-defining side ring walls, together with the broad blade end of rounded shape of the scissors blade element carrying the oval-shaped ring, and also the better gripping of the fingers within the oval ring being effected by opposing elongated convex and concave inner ring side surfaces, with the convex surface being the inner surface of the ring''s side closest to the thumbring of the other blade element.

Inventors

  • 👤 Italo Marco Levi Laurenti

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 02:41
CPC Classifications
B; B26; B26B; B26B13/00; B26B13/12; B26B13/20

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 533 words
A scissors device comprising in combination: substantially flat-faced first and second blade elements and pivot means for pivotably mounting together the first and second blade elements operatively, each balde element having each of upper and lower faces extending in respective flat planes in both longitudinal and transverse directions, ranging from a blade tip throughout blade and shank portions to and including a handle-mountable terminal shank portion, one of the handle-mountable terminal shank portions of the first and second blade elements extending angularly laterally relative to its respective blade portion''s longitudinal axis and relative to the remaining shank portion of the other of the first and second blade elements, each of the blade portions of the first and second blade elements including a cutting edge and an opposite backing edge, and a blade-tip back edge of said remaining one of the first and second blade elements defining a broad blade side face between the blade back edge and the cutting edge, and the blade back edge further defining a round terminal edge extending to the cutting edge thereof; a substantially circular thumb-ring-defining handle mounted on said one angularly laterally-extending terminal shank portion of said one''s blade element, the thumb-ring-defining handle being mounted at a point spaced-away from said remaining other shank portion and including handle structure defining a passage extending angularly from a lower forwardly direction to a top upper rearwardly direction through its lower and upper surfaces relative to said one''s shank portion which extend in said flat plane from forwardly to rearwardly into the handle forwardly of the passage, and the thumb-ring-defining handle including substantially thin walls extending substantially lineally in the direction of the passage and defining a flange extending laterally from an outer ring side surface in a direction such that the flange is abuttable of a side of the ring-handle of the remaining one''s of the first and second blade elements, the thumb-ring-defining handle lower mouth-forming portion adjacent the mounted terminal shank portion thereof being rounded and angularly inclined and defining a slot narrowing toward the blade element shank portions thereof providing an elongated converging seat for a digital end of a person''s thumb inserted from a rearward upper direction of the thumb-ring-defining handle; and the remaining one''s of the first and second blade elements having mounted on its handle-mountable terminal shank portion an elongated fingers-mounting ring structure mounted of the remaining blade element and being mounted at a point spaced-away from said one angularly extending terminal shank portion and defining a through-channel between its upper and lower surfaces with the through-channel having a cross-section of substantially elliptical shape with one longitudinally-extending side wall relative to the elliptical fingers-mounting ring being substantially concave on an inner ring side away from the thumb-ring-defining handle with an opposite longitudinally-extending side walls relative to the elliptical fingers-mounting being substantially convex on an inner ring side adjacent the thumb-ring-defining handle, upper and lower forming portions of the through-channel defining fingers-mounting ring structure adjacent the mounted terminal shank portion thereof being rounded and inclined angularly toward the mounted terminal shank portions thereof such that Each of upper and lower mouth-forming portions define a seat receivable of a forward side edge of an index finger.
Claim 2
Dependent Claim 533 words
A scissors device comprising in combination: substantially flat-faced first and second blade elements and pivot means for pivotably mounting together the first and second blade elements operatively, each balde element having each of upper and lower faces extending in respective flat planes in both longitudinal and transverse directions, ranging from a blade tip throughout blade and shank portions to and including a handle-mountable terminal shank portion, one of the handle-mountable terminal shank portions of the first and second blade elements extending angularly laterally relative to its respective blade portion''s longitudinal axis and relative to the remaining shank portion of the other of the first and second blade elements, each of the blade portions of the first and second blade elements including a cutting edge and an opposite backing edge, and a blade-tip back edge of said remaining one of the first and second blade elements defining a broad blade side face between the blade back edge and the cutting edge, and the blade back edge further defining a round terminal edge extending to the cutting edge thereof; a substantially circular thumb-ring-defining handle mounted on said one angularly laterally-extending terminal shank portion of said one''s blade element, the thumb-ring-defining handle being mounted at a point spaced-away from said remaining other shank portion and including handle structure defining a passage extending angularly from a lower forwardly direction to a top upper rearwardly direction through its lower and upper surfaces relative to said one''s shank portion which extend in said flat plane from forwardly to rearwardly into the handle forwardly of the passage, and the thumb-ring-defining handle including substantially thin walls extending substantially lineally in the direction of the passage and defining a flange extending laterally from an outer ring side surface in a direction such that the flange is abuttable of a side of the ring-handle of the remaining one''s of the first and second blade elements, the thumb-ring-defining handle lower mouth-forming portion adjacent the mounted terminal shank portion thereof being rounded and angularly inclined and defining a slot narrowing toward the blade element shank portions thereof providing an elongated converging seat for a digital end of a person''s thumb inserted from a rearward upper direction of the thumb-ring-defining handle; and the remaining one''s of the first and second blade elements having mounted on its handle-mountable terminal shank portion an elongated fingers-mounting ring structure mounted of the remaining blade element and being mounted at a point spaced-away from said one angularly extending terminal shank portion and defining a through-channel between its upper and lower surfaces with the through-channel having a cross-section of substantially elliptical shape with one longitudinally-extending side wall relative to the elliptical fingers-mounting ring being substantially concave on an inner ring side away from the thumb-ring-defining handle with an opposite longitudinally-extending side walls relative to the elliptical fingers-mounting being substantially convex on an inner ring side adjacent the thumb-ring-defining handle, upper and lower forming portions of the through-channel defining fingers-mounting ring structure adjacent the mounted terminal shank portion thereof being rounded and inclined angularly toward the mounted terminal shank portions thereof such that Each of upper and lower mouth-forming portions define a seat receivable of a forward side edge of an index finger.
Claim 3
Dependent Claim 533 words
A scissors device comprising in combination: substantially flat-faced first and second blade elements and pivot means for pivotably mounting together the first and second blade elements operatively, each balde element having each of upper and lower faces extending in respective flat planes in both longitudinal and transverse directions, ranging from a blade tip throughout blade and shank portions to and including a handle-mountable terminal shank portion, one of the handle-mountable terminal shank portions of the first and second blade elements extending angularly laterally relative to its respective blade portion''s longitudinal axis and relative to the remaining shank portion of the other of the first and second blade elements, each of the blade portions of the first and second blade elements including a cutting edge and an opposite backing edge, and a blade-tip back edge of said remaining one of the first and second blade elements defining a broad blade side face between the blade back edge and the cutting edge, and the blade back edge further defining a round terminal edge extending to the cutting edge thereof; a substantially circular thumb-ring-defining handle mounted on said one angularly laterally-extending terminal shank portion of said one''s blade element, the thumb-ring-defining handle being mounted at a point spaced-away from said remaining other shank portion and including handle structure defining a passage extending angularly from a lower forwardly direction to a top upper rearwardly direction through its lower and upper surfaces relative to said one''s shank portion which extend in said flat plane from forwardly to rearwardly into the handle forwardly of the passage, and the thumb-ring-defining handle including substantially thin walls extending substantially lineally in the direction of the passage and defining a flange extending laterally from an outer ring side surface in a direction such that the flange is abuttable of a side of the ring-handle of the remaining one''s of the first and second blade elements, the thumb-ring-defining handle lower mouth-forming portion adjacent the mounted terminal shank portion thereof being rounded and angularly inclined and defining a slot narrowing toward the blade element shank portions thereof providing an elongated converging seat for a digital end of a person''s thumb inserted from a rearward upper direction of the thumb-ring-defining handle; and the remaining one''s of the first and second blade elements having mounted on its handle-mountable terminal shank portion an elongated fingers-mounting ring structure mounted of the remaining blade element and being mounted at a point spaced-away from said one angularly extending terminal shank portion and defining a through-channel between its upper and lower surfaces with the through-channel having a cross-section of substantially elliptical shape with one longitudinally-extending side wall relative to the elliptical fingers-mounting ring being substantially concave on an inner ring side away from the thumbring-defining handle with an opposite longitudinally-extending side walls relative to the elliptical fingers-mounting being substantially convex on an inner ring side adjacent the thumbring-defining handle, upper and lower forming portions of the through-channel defining fingers-mounting ring structure adjacent the mounted terminal shank portion thereof being rounded and inclined angularly toward the mounted terminal shank portions thereof such that Each of upper and lower mouth-forming portions define a seat receivable of a forward side edge of an index finger.
Claim 4
Dependent Claim 533 words
A scissors device comprising in combination: substantially flat-faced first and second blade elements and pivot means for pivotably mounting together the first and second blade elements operatively, each balde element having each of upper and lower faces extending in respective flat planes in both longitudinal and transverse directions, ranging from a blade tip throughout blade and shank portions to and including a handle-mountable terminal shank portion, one of the handle-mountable terminal shank portions of the first and second blade elements extending angularly laterally relative to its respective blade portion''s longitudinal axis and relative to the remaining shank portion of the other of the first and second blade elements, each of the blade portions of the first and second blade elements including a cutting edge and an opposite backing edge, and a blade-tip back edge of said remaining one of the first and second blade elements defining a broad blade side face between the blade back edge and the cutting edge, and the blade back edge further defining a round terminal edge extending to the cutting edge thereof; a substantially circular thumb-ring-defining handle mounted on said one angularly laterally-extending terminal shank portion of said one''s blade element, the thumb-ring-defining handle being mounted at a point spaced-away from said remaining other shank portion and including handle structure defining a passage extending angularly from a lower forwardly direction to a top upper rearwardly direction through its lower and upper surfaces relative to said one''s shank portion which extend in said flat plane from forwardly to rearwardly into the handle forwardly of the passage, and the thumb-ring-defining handle including substantially thin walls extending substantially lineally in the direction of the passage and defining a flange extending laterally from an outer ring side surface in a direction such that the flange is abuttable of a side of the ring-handle of the remaining one''s of the first and second blade elements, the thumb-ring-defining handle lower mouth-forming portion adjacent the mounted terminal shank portion thereof being rounded and angularly inclined and defining a slot narrowing toward the blade element shank portions thereof providing an elongated converging seat for a digital end of a person''s thumb inserted from a rearward upper direction of the thumb-ring-defining handle; and the remaining one''s of the first and second blade elements having mounted on its handle-mountable terminal shank portion an elongated fingers-mounting ring structure mounted of the remaining blade element and being mounted at a point spaced-away from said one angularly extending terminal shank portion and defining a through-channel between its upper and lower surfaces with the through-channel having a cross-section of substantially elliptical shape with one longitudinally-extending side wall relative to the elliptical fingers-mounting ring being substantially concave on an inner ring side away from the thumbring-defining handle with an opposite longitudinally-extending side walls relative to the elliptical fingers-mounting being substantially convex on an inner ring side adjacent the thumbring-defining handle, upper and lower forming portions of the through-channel defining fingers-mounting ring structure adjacent the mounted terminal shank portion thereof being rounded and inclined angularly toward the mounted terminal shank portions thereof such that Each of upper and lower mouth-forming portions define a seat receivable of a forward side edge of an index finger.
Claim 5
Dependent Claim 23 words
A scissors device of claim 1, in which the thumb-ring-defining handle''s structure and the elongated fingers-mounting ring structure each is unitary and self-supporting.

References Cited (Backward Citations)

US1092A Cited
US342380A Cited
US2590024A Cited
US2776482A Cited
US2965967A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-03-10 1978-09-09 1979-03-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-03-10 1982-09-09 1983-03-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-03-10 1986-09-09 1987-03-11 $7700.00 Window Closed / Lapsed

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