US3971270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tweezers
Assignee: Individual
•
Filing: 1975-06-02
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Granted: 1976-07-27
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Expires: 1995-06-02
Abstract
Abstract Tweezers which are particularly adapted for handling stamps or other objects wherein a pair of tweezer members are secured together. Each tweezer member having a butt end and a finger portion terminal end. Each tweezer member having a substantially concavo-convex handle portion with a concave sides of the handle portion being opposed to each other and whereby each finger portion of each tweezer member is substantially straight and a transition portion between the finger portions and the handle portion provides a fulcrum by means of which the finger portions may be pivoted apart by opposed pressure on the convex sides of the concavo-convex handle portions of the tweezer members. The butt ends of the tweezer members being normally converging toward said butt ends relative to each other and being secured together in substantially parallel preloaded relationship such that the finger portions of the tweezer members are held in contiguous clamped together relationship and wherein the aforementioned transition portions operate as fulcrums for separating the finger portions of the tweezer members at their terminal ends so as to pick up stamps or other objects as desired.
Inventors
- 👤 Joseph T. Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:15
CPC Classifications
B; B25; B25B; B25B9/00; B25B9/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
195 words
In a tweezer structure, the combination of: a pair of resilient tweezer members; each tweezer member having a handle portion provided with an integral finger portion; each handle portion having a butt end and said finger portion having a terminal end; said handle portion having a substantially concavo-convex portion integral therewith; said concavo-convex portion having a concave side and a convex side; said concavo-convex portion being integral with said finger portion; each finger portion having substantially straight configuration relative to said substantially concavo-convex portion; a transition portion disposed between said concavo-convex portion and said finger portion; said pair of tweezer members fixed together in resiliently loaded relation to each other at their butt ends; said concave sides facing each other; said transition portions being in close proximity to each other; said substantially straight finger portions being in resiliently loaded parallel contiguous relationship to each other; whereby opposed pressure on said convex sides of said concavo-convex portion causes said transition portions to engage each other and act as fulcrums and whereby said opposed pressure deflects said concave sides toward each other and pivots said finger portions apart at their terminal ends and beyond said transition portions.
Claim 2
Dependent Claim
195 words
In a tweezer structure, the combination of: a pair of resilient tweezer members; each tweezer member having a handle portion provided with an integral finger portion; each handle portion having a butt end and said finger portion having a terminal end; said handle portion having a substantially concavo-convex portion integral therewith; said concavo-convex portion having a concave side and a convex side; said concavo-convex portion being integral with said finger portion; each finger portion having substantially straight configuration relative to said substantially concavo-convex portion; a transition portion disposed between said concavo-convex portion and said finger portion; said pair of tweezer members fixed together in resiliently loaded relation to each other at their butt ends; said concave sides facing each other; said transition portions being in close proximity to each other; said substantially straight finger portions being in resiliently loaded parallel contiguous relationship to each other; whereby opposed pressure on said convex sides of said concavo-convex portion causes said transition portions to engage each other and act as fulcrums and whereby said opposed pressure deflects said concave sides toward each other and pivots said finger portions apart at their terminal ends and beyond said transition portions.
Claim 3
Dependent Claim
93 words
The invention as defined in claim 1, wherein: said handle portions are normally converging relative to each other in a direction toward said butt end; said finger portions normally converging toward each other in a direction toward said terminal ends and thus said tweezer members are resiliently loaded when fixed together in generally parallel relation to each other adjacent said butt ends; said handle portions being fixed together in substantially parallel relation to each other adjacent said butt ends; and said finger portions being thus resiliently held in contiguous relation to each other.
Claim 4
Dependent Claim
28 words
The invention as defined in claim 1, wherein: said finger portions are slightly curved, when disassembled, between said handle portions and said terminal ends of said finger portions.
Claim 5
Dependent Claim
78 words
The invention as defined in claim 3, wherein: said finger portions each having a structural stiffness gradient increasing from said terminal ends toward said handle portion whereby a corresponding flexural gradient from said terminal ends toward said handle portion provides for uniform deflection and contiguous contact of said substantially curved portions initially at said terminal ends and progressively toward said handle portions during closing action of said finger portions toward each other to attain said substantially straight configuration.
Claim 6
Dependent Claim
17 words
The invention as defined in claim 1, wherein: said tweezer members are substantially identical to each other.
Claim 7
Dependent Claim
22 words
The invention as defined in claim 5, wherein: said tweezer members being tapered convergingly from said butt ends toward said terminal ends.
Claim 8
Dependent Claim
29 words
The invention as defined in claim 6, wherein: said tweezer members are of resilient sheet metal of a substantially uniform thickness from said butt ends to said terminal ends.
Claim 9
Dependent Claim
14 words
The invention as defined in claim 1, wherein: said butt ends are fused together.
Claim 10
Dependent Claim
14 words
The invention as defined in claim 2, wherein: said butt ends are fused together.
Claim 11
Dependent Claim
193 words
Apparatus comprising: a substantially rigid base; a resilient clamping member provided with a handle portion having an integral finger portion; said handle portion having a butt end and said finger portion having a terminal end; said handle portion having a substantially concavo-convex portion integral therewith; said concavo-convex portion having a concave side and a convex side; said concavo-convex portion being integral with said finger portion; said finger portion having a substantially straight configuration relative to said substantially concavo-convex portion; a transition portion disposed between said concavo-convex portion and said finger portion; said resilient clamping member fixed to said base in resiliently loaded relationship thereto at said butt end of said handle portion; said concave side facing said base; said transition portion bearing on said base; said substantially straight finger portion being in resiliently loaded parallel contiguous relation to said base; whereby pressure on said convex side of said concavo-convex portion causes said transition portion to bear on said base and act as a fulcrum and whereby said pressure deflects said concave side toward said base and pivots said finger portion away from said base at said terminal end and beyond said transition portion.
Claim 12
Dependent Claim
193 words
Apparatus comprising: a substantially rigid base; a resilient clamping member provided with a handle portion having an integral finger portion; said handle portion having a butt end and said finger portion having a terminal end; said handle portion having a substantially concavo-convex portion integral therewith; said concavo-convex portion having a concave side and a convex side; said concavo-convex portion being integral with said finger portion; said finger portion having a substantially straight configuration relative to said substantially concavo-convex portion; a transition portion disposed between said concavo-convex portion and said finger portion; said resilient clamping member fixed to said base in resiliently loaded relationship thereto at said butt end of said handle portion; said concave side facing said base; said transition portion bearing on said base; said substantially straight finger portion being in resiliently loaded parallel contiguous relation to said base; whereby pressure on said convex side of said concavo-convex portion causes said transition portion to bear on said base and act as a fulcrum and whereby said pressure deflects said concave side toward said base and pivots said finger portion away from said base at said terminal end and beyond said transition portion.
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) | 1979-07-27 | 1980-01-26 | 1980-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-27 | 1984-01-26 | 1984-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-27 | 1988-01-26 | 1988-07-27 | $7700.00 | Window Closed / Lapsed |