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US 12,611,787 B1Granted
Scissors
OwnerRandall B. Loweinventor
Life of this patent
Estimating the term…
Abstract
Systems involve a scissors assembly including (I) a thumb handle; and (II) a thumb ring having a first coupling condition, a second coupling condition, and a third coupling condition. When the thumb ring is in the first coupling condition, the thumb ring is fixedly coupled to the thumb handle. When the thumb ring is in the second coupling condition, the thumb ring is rotatably coupled to the thumb handle. When the thumb ring is in the third coupling condition, the thumb ring is slidably coupled to the thumb handle. Other aspects are described in the claims, drawings, and text forming a part of the present disclosure.
Claims20
A scissors assembly comprising:
- (I) a thumb handle;
- and
- (II) a thumb ring coupled with the thumb handle via a coupling that is selectively configurable in a first coupling condition and a second coupling condition,
- wherein when the coupling is in the first coupling condition, the thumb ring is fixedly coupled with the thumb handle, so that rotation and sliding of the thumb ring relative to the thumb handle are prevented, and
- wherein when the coupling is in the second coupling condition, the thumb ring is rotatably coupled with the thumb handle so that rotation is permitted and sliding of the thumb ring relative to the thumb handle is prevented.
2 more elements
A scissors assembly comprising:
- (I) a thumb handle;
- (II) a thumb ring;
- and
- (III) a support member received within an elongated aperture of the thumb handle;
- (IV) a shaft member coupled with the thumb ring;
- and
- (V) one or more threaded nuts disposed on the support member to be positioned between the thumb handle and the thumb ring,
- wherein the shaft member engages the support member,
- wherein positioning of the one or more threaded nuts on the support member determines a coupling condition of the thumb ring with the thumb handle,
- wherein, in a first coupling condition in which the thumb ring is fixedly coupled with the thumb handle, at least one of the one or more threaded nuts bears against the thumb handle and at least one of the one or more threaded nuts bears against the thumb ring to provide compressive preload and rotation and sliding of the thumb ring relative to the thumb handle are prevented, and
- wherein, in a second coupling condition in which the thumb ring is rotatably coupled with the thumb handle, at least one of the one or more threaded nuts is spaced from the thumb handle and is spaced from the thumb ring so as to provide axial retention without compressive preload on the thumb handle or the thumb ring rotation is permitted and sliding of the thumb ring relative to the thumb handle is prevented.
8 more elements
A scissors assembly comprising:
- (I) a thumb handle;
- (II) a support member received within an elongated aperture of the thumb handle;
- (III) a thumb ring coupled with the support member;
- (IV) a first threaded nut disposed on the support member to be positioned between the thumb handle and the thumb ring;
- (V) a second threaded nut disposed on the support member to be positioned between the thumb handle and the thumb ring;
- (VI) at least one compressible washer positioned between the second threaded nut and the thumb ring;
- and
- (VII) a shaft member coupled with the thumb ring and engaging the support member,
- wherein, when the thumb ring is slidably coupled with the thumb handle, the first threaded nut is positioned to impart no force onto the thumb handle and the second threaded nut maintains preload through the at least one compressible washer with clearance, whereby sliding along the elongated aperture is permitted and rotation of the thumb ring relative to the thumb handle is constrained,
- wherein, when the thumb ring is fixedly coupled with the thumb handle, the first threaded nut is positioned to contact the thumb handle to impart force to the thumb handle and the second threaded nut is positioned to contact the at least one compressible washer to impart force through the at least one compressible washer to the thumb ring, whereby rotation and sliding of the thumb ring relative to the thumb handle are prevented, and
- wherein, when the thumb ring is rotatably coupled with the thumb handle, the first threaded nut is positioned to be spaced from the thumb handle so as to impart no force to the thumb handle and the second threaded nut is positioned to be spaced from the at least one compressible washer and from the thumb ring so as to impart no force to the thumb ring, whereby rotation is permitted and sliding of the thumb ring relative to the thumb handle is prevented.
8 more elements
Dependencies are inferred from the claim text.