Right Or Left Hand Patents (Class 30/256)
  • Patent number: 10854107
    Abstract: A pair of training scissors structurally configured to help a child learn proper finger positions for use of scissors. The handles include solid bowl apertures to positioned so that the tips of the fingers are desirably positioned so that the tips of the fingers are utilized to operate the scissors. The scissors also include an illumination feature that encourages a child to practice opening and closing the scissors as they are motivated by the light. This repetition serves to reinforce the proper finger positions, and the repetitions also help develop muscle strength.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: December 1, 2020
    Inventor: Zubin Shirodkar
  • Patent number: 10681873
    Abstract: A device for holding a cutting blade having a cam, including a blade pivot pin for mounting the cutting blade in a pivoting manner on a cutting tool, and a cam pivot pin connected to a driving mechanism of the blade, a first pivot pin chosen from the blade pivot pin and the cam pivot pin being provided with a matching-shape axial lock. The other pivot pin is provided with a manually tightened axial lock. The device includes a catch having a first end with a latch able to be engaged with and held on the first pivot pin by matching shapes, and a second end able to be engaged with and held on the pivot pin provided with the manually tightened axial lock.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: June 16, 2020
    Assignee: PELLENC (SOCIETE ANONYME)
    Inventors: Roger Pellenc, Philippe Gilbert
  • Patent number: 10300617
    Abstract: A cutting tool includes first and second blades attached to each other by a joint, and first and second handles. A first inlay having a protruding end protrudes into a hole in the first blade. A shaft has a first end joined to the protruding end of the first inlay, and has a second end with at least one transverse shoulder. A second inlay has a protruding end protruding into a hole in the second blade and a hole receives the second end of the shaft, and an engaging surface engages with the shoulder of the shaft. The hole of the second inlay has a shape and width allowing the second end of the shaft with the shoulder to pass into the hole in a release position, but prevents the shaft and shoulder from passing through the hole when the shaft and second inlay are not in the release position.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: May 28, 2019
    Assignee: Fiskars Finland Oy Ab
    Inventor: Heikki Savolainen
  • Patent number: 10189171
    Abstract: A scissor cutter includes first and second pivot portions, two first offset portions, two second offset portions, a first cutting portion having a first contact face, and a second cutting portion having a second contact face. The first and second contact faces contact each other along a shear plane. The second pivot portion, the first cutting portion and the first offset portions are located at a first side of the shear plane. The first pivot portion, the second cutting portion and the second offset portions are located at a second side of the shear plane. When the first and second pivot portions pivotally move with respect to each other, the first offset portions respectively abut against the second offset portions.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: January 29, 2019
    Inventor: I-Wei Chiang
  • Publication number: 20110016728
    Abstract: Ergonomic scissors are adjustable with respect to thumb offset, thumb ring rotation, and thumb/finger ring diameter, so as to enable effective control, in conjunction with unstrained wrist movements, of scissor roll, yaw and pitch.
    Type: Application
    Filed: July 22, 2009
    Publication date: January 27, 2011
    Inventors: Abbe J. Hann, Ronald B. Hann
  • Publication number: 20100299940
    Abstract: A scissors includes a pair of scissors constitution bodies which have a cutting portion and a holding portion formed continuously from the cutting portion. The cutting portion has cutter blades formed on both sides in a width direction. The pair of scissors constitution bodies are rotatably joined by a shaft portion in a base end portion of the cutting portion. The pair of scissors constitution bodies cross and rotate in both directions through the shaft portion. The holding portion includes a handle portion mounted therein so as to be visually unrecognized from the outside, the handle portion projected only in one width direction. A slider provided in the holding portion is operated to form a handle portion.
    Type: Application
    Filed: November 24, 2009
    Publication date: December 2, 2010
    Applicant: RAYMAY FUJII CORPORATION
    Inventor: Akio Fujii
  • Patent number: 7380342
    Abstract: A pair of improved scissors is provided herein, which separates the blades and handles of the pair of scissors into individual parts. These parts are joined at the pivot point by a locking mechanism. By adjusting the locking mechanism, the included angle between the blades and handles of the pair of scissors can be varied easily in accordance the requirement of the application. In addition, with the present invention, the handles can also be replaced by those that are safer and more comfortable to operate. As such, the stress and burden of the user's fingers and wrist can be relieved in operating the pair of scissors.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: June 3, 2008
    Inventors: Chien-Che Huang, Shun-Shih Hsu
  • Patent number: 6915578
    Abstract: A reversible scissors comprising a pair of pivotally connected two edge cutting blade members, operating handles and ring members. Ring members are connected pivotally with and movable along the operating handles.
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: July 12, 2005
    Inventors: Salman Yusufov, Nazim Yusufov
  • Publication number: 20010032392
    Abstract: A handle of a cutting device is formed of shape memory resin. The handle has an assisting portion that makes it easy to reshape the handle.
    Type: Application
    Filed: April 10, 2001
    Publication date: October 25, 2001
    Applicant: Feather Safety Razor Co., Ltd.
    Inventors: Masayuki Ueno, Kiyoshi Ido
  • Patent number: 5860215
    Abstract: A scissors that is designed for use by a particular handed person that is modified to be used by an other-handed person (e.g., a left-handed scissors for use by a right handed person) includes a pivot joint, and two blade members pivotally coupled together. At least one blade member has a levered handle behind the pivot joint. The levered handle acts on a fulcrum member to apply a lever force to a portion of the pivot joint to increase the tension and friction between the cutting edges of the blade members, when the motion of the users thumb and fingers would otherwise tend to pull the blade members apart and decrease tension and friction between the blade members, if no levered handle was present.
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: January 19, 1999
    Inventors: Scott H. Roskam, Dennis E. Soucie
  • Patent number: 5722171
    Abstract: In scissors, particularly hairdresser's scissors, with two scissor blades (1, 2), connected to each other in articulated fashion by means of a single pivot (3), and two scissor handles (4, 5), each of which displays two handle sections (28, 29) and (30, 31), where the first handle section (28, 30) is connected to its corresponding scissor blade (1, 2) and the second handle section (29, 31) includes the end grip of the scissor handle (4 or 5), and where the two corresponding handle sections are connected to each other in articulated fashion to permit pivoting in the plane of the handle, it is envisaged that the two handle sections can be locked in various angular positions in relation to each other in order to allow optimum ergonomic setting, and that locking takes place in the articulated connection of the handle sections.
    Type: Grant
    Filed: May 2, 1996
    Date of Patent: March 3, 1998
    Inventor: Hardi Schmidt
  • Patent number: 5469624
    Abstract: Interchangeable thumb ringlets are described for improving the comfort and control of scissors and pivoted grasping instruments. Flexible thumb ringlets having various sizes are removably attachable to the thumb handle portion of such instruments, thereby providing proper fit to the user's thumb.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: November 28, 1995
    Inventors: Billy H. Brenton, James J. Stagnone
  • Patent number: 3978584
    Abstract: Scissors which may be used with equal ease and efficiency by either a left-handed or right-handed person. The scissors include two generally flat rigid, blade portions which are each sharpened on both edges to provide two sets of cutting edges. The blade portions are pivotally connected to one another and each includes a handle portion on one end. One of the handle portions is adapted to fit the thumb of the user while the other handle portion is larger to permit engagement of two or more fingers of the same hand in the normal fashion of scissors use. The thumb handle is pivotally mounted to its respective blade portion to permit pivotal movement from one selected position at one side of the finger handle as used during right-handed operation to a second selected position at the opposite side of the finger handle for use during left-handed operation. A detent or lock is provided to secure and hold the thumb handle in either of the selected positions.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: September 7, 1976
    Inventor: John W. Mayer