Patent US3741602A successfully refreshed from Google Patents.
US3741602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tweezers
Assignee: Individual
•
Filing: 1971-04-01
•
Granted: 1973-06-26
•
Expires: 1991-04-01
Abstract
Abstract Tweezers for holding a fragile unit including two arm members having respective free ends movable upon the application of horizontal pressure from an open position of nonvertical alignment to a closed position of vertical alignment, the arm ends include gripping surfaces for engaging and securely holding the fragile unit at its periphery when the tweezers are in a closed position.
Inventors
- 👤 S Ploeckelmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:27
CPC Classifications
G; G04; G04D; G04D1/00; G04D1/02; G04D1/021; B; B25; B25B; B25B9/00; B25B9/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
195 words
Improved tweezers comprising a. a unitary device with first and second arm members having rearward endS joined together and terminating at a junction allowing relative movement between said arms only in a horizontal direction and having respective free ends adapted to hold a fragile disc of predetermined thickness lying in a horizontal reference plane; b. said free end of said first arm member including support means for engaging an underneath portion of said fragile unit adjacent its periphery; c. said free end of said second arm member including holding means for engaging an upper portion of said fragile unit adjacent its periphery; and d. said arm members being connected to position said support means and said holding means in horizontal planes vertically displaced a distance substantially equal to said predetermined thickness of said fragile disc, said free ends of said arms being swingable in a horizontal direction, upon the application of manual pressure upon said arms, from a normally open position of vertical non-alignment of said support means and said holding means to a closed position bringing said support means and said holding means into spaced apart vertical alignment to hold said fragile unit therebetween.
Claim 2
Dependent Claim
195 words
Improved tweezers comprising a. a unitary device with first and second arm members having rearward endS joined together and terminating at a junction allowing relative movement between said arms only in a horizontal direction and having respective free ends adapted to hold a fragile disc of predetermined thickness lying in a horizontal reference plane; b. said free end of said first arm member including support means for engaging an underneath portion of said fragile unit adjacent its periphery; c. said free end of said second arm member including holding means for engaging an upper portion of said fragile unit adjacent its periphery; and d. said arm members being connected to position said support means and said holding means in horizontal planes vertically displaced a distance substantially equal to said predetermined thickness of said fragile disc, said free ends of said arms being swingable in a horizontal direction, upon the application of manual pressure upon said arms, from a normally open position of vertical non-alignment of said support means and said holding means to a closed position bringing said support means and said holding means into spaced apart vertical alignment to hold said fragile unit therebetween.
Claim 3
Dependent Claim
63 words
The improved tweezers of claim 1 wherein said support means includes a first flat gripping surface and said holding means includes a second flat gripping surface of lesser area than said first flat gripping surface to frictionally engage in opposing relationship said underneath portion and said upper portion, respectively, of said fragile unit adjacent its periphery to prevent rotation of the fragile unit.
Claim 4
Dependent Claim
64 words
The improved tweezers of claim 2 wherein said flat gripping surface of said support means is terminated on one side by a stop means for abutting an edge of the fragile unit to limit the depth of engagement of said fragile unit by said support means, thereby preventing any opposing frictional engagement of said gripping surfaces with the interior portion of the fragile unit.
Claim 5
Dependent Claim
64 words
The improved tweezers of claim 1 wherein said first and second arm members respectively include elongated strip means lying in a vertical plane and having spring flexibility only in a horizontal direction for controlling the vertical pressure upon said fragile unit by said support means and said holding means even though increased pressures of diverse magnitudes and directions are applied to said arm members.
References Cited (Backward Citations)
US2601513A
Cited
US3364933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |