Patent US3872591A successfully refreshed from Google Patents.
US3872591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knife handle
Assignee: Individual
•
Filing: 1973-11-19
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Granted: 1975-03-25
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Expires: 1993-11-19
Abstract
Abstract The hollow handle of a knife with a retractable blade is made of two shells secured together side-by-side, one shell having an integral female portion defining an oblique nose with a slot-like aperture in which a flat male tongue at the end of the other shell is inserted to define a blade outlet slot. A press button enables a blade held in a slidably mounted plate-like blade supporting carriage to be held against a face of the outlet slot during cutting, simultaneously locking the carriage and blade against unwanted longitudinal movement.
Inventors
- 👤 Michel Quenot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:34
CPC Classifications
B; B26; B26B; B26B5/00; B26B5/001
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
93 words
A hollow knife handle comprising first and second elongate shell members secured together generally edge-to-edge to define therebetween a blade-receiving cavity, in which the first member has at one end a slot-like aperture and an integral oval shaped female portion extending continuously around said aperture and defining a nose end of the handle, said slot-like aperture communicating with and being in alignment with said blade receiving cavity, and the second member has a male end part inserted in said aperture to cooperate with the oval portion to define therein a blade outlet slot.
Claim 2
Dependent Claim
93 words
A hollow knife handle comprising first and second elongate shell members secured together generally edge-to-edge to define therebetween a blade-receiving cavity, in which the first member has at one end a slot-like aperture and an integral oval shaped female portion extending continuously around said aperture and defining a nose end of the handle, said slot-like aperture communicating with and being in alignment with said blade receiving cavity, and the second member has a male end part inserted in said aperture to cooperate with the oval portion to define therein a blade outlet slot.
Claim 3
Dependent Claim
45 words
A knife handle according to claim 1, in which said male end part consists of a flat tongue having an outer face applied against one face of said aperture and an inner face defining, with the other face of said aperture, said blade outlet slot.
Claim 4
Dependent Claim
117 words
A knife handle according to claim 1, further comprising a blade-supporting carriage in the form of a plate having a planar main part with parallel edges protruding perpendicular to one face of the main part, means for releasably securing a blade in said carriage against said main part, means for mounting the carriage within said cavity with said main part disposed parallel to the blade outlet slot and said edges of the carriage parallel to the longitudinal direction of the handle for a sliding movement of the carriage along the longitudinal direction of the handle towards and away from said blade outlet slot, and means for releasably holding the carriage in selected positions relative to the handle.
Claim 5
Dependent Claim
85 words
A knife handle according to claim 3, in which said blade securing means include a resilient tongue integral with said plate, a projection on said tongue normally adopting a blade-securing position protruding from said one face of the main part but being resiliently deformable to a blade-disengaging position in which it does not protrude from said one face of the main part, and means for moving the projection to the blade-disengaging position when the carriage is disposed in a given position relative to the handle.
Claim 6
Dependent Claim
32 words
A knife handle according to claim 4, in which said means for moving the projection include a push button disposed on a part of the handle tapering towards said nose end thereof.
Claim 7
Dependent Claim
54 words
A knife handle according to claim 5, in combination with a blade held in said carriage, in which when the carriage is disposed in positions other than said given position said button is adapted to move the carriage and blade together to apply the blade transversely against one face of the blade outlet slot.
Claim 8
Dependent Claim
53 words
A knife handle according to claim 3, in combination with a blade, in which the blade is in the shape of a trapezium and includes on a shorter parallel edge thereof two symmetrical notches adapted to cooperate with said projection to hold the blade in either of two orientations relative to the carriage.
Claim 9
Dependent Claim
54 words
A knife handle according to claim 7, in which the blade outlet slot is inclined obliquely in relation to the longitudinal direction of the handle in the direction opposite to the non-parallel edge of a held blade protruding from the blAde outlet slot, the longer parallel edge of the blade being a cutting edge.
Claim 10
Dependent Claim
51 words
A knife handle according to claim 1, comprising a spare-blade magazine pivotally connected to the handle for movement between a first position flush with the handle and a second protruding position by means of an eyelet in the magazine engaging on inwardly facing studs in the first and second shell members.
Claim 11
Dependent Claim
39 words
A knife handle according to claim 9, comprising a press-stud cooperating with a clip for releasably locking the magazine in the first position, said press-stud being disposed on a rear end of the handle opposite to said nose end.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |