US4265476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work-holding device
Assignee: Individual
•
Filing: 1979-08-13
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Granted: 1981-05-05
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Expires: 1999-08-13
Abstract
Abstract A work-holding device comprises a body member having an aperture on a first end. A vacuum producing device is operably connected with the body member for creating a vacuum at the aperture. An illumination device is disclosed within the body member for illuminating the aperture.
Inventors
- 👤 Alan Elgart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:35
CPC Classifications
B; B25; B25B; B25B11/00; B25B11/005; B25B11/007
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
83 words
A work holding device, comprising: an outer rigid member having disposed within; an inner rigid member concentric with said outer member having; an aperture on a first end of said inner member; and vacuum producing means, including a cylinder as said inner member connected to said aperture and a piston reciprocably received within said inner member for creating a vacuum at said aperture when said piston moves away from said aperture; and illumination means disposed within said outer member for illuminating said aperture.
Claim 2
Dependent Claim
83 words
A work holding device, comprising: an outer rigid member having disposed within; an inner rigid member concentric with said outer member having; an aperture on a first end of said inner member; and vacuum producing means, including a cylinder as said inner member connected to said aperture and a piston reciprocably received within said inner member for creating a vacuum at said aperture when said piston moves away from said aperture; and illumination means disposed within said outer member for illuminating said aperture.
Claim 3
Dependent Claim
41 words
The work-holding device as defined in claim 1 further characterized in that piston operating means is connected to said piston and extends out of a second end of said inner member for moving said piston towards and away from said aperture.
Claim 4
Dependent Claim
47 words
The work-holding device as defined in claim 2 further characterized in that said piston operating means includes a latch means for locking said piston in its closest position to said aperture and a spring means for biasing said piston away from said aperture to create a vacuum.
Claim 5
Dependent Claim
84 words
A work holding device, comprising: an outer rigid member having disposed entirely within; an inner rigid member concentric with said outer member having; an aperture on a first end of said inner member, and vacuum producing means, including a cylinder as said inner member connected to said aperture and a piston reciprocably received within said inner member for creating a vacuum at said aperture when said piston moves away from said aperture; and illumination means disposed within said outer member for illuminating said aperture.
Claim 6
Dependent Claim
84 words
A work holding device, comprising: an outer rigid member having disposed entirely within; an inner rigid member concentric with said outer member having; an aperture on a first end of said inner member, and vacuum producing means, including a cylinder as said inner member connected to said aperture and a piston reciprocably received within said inner member for creating a vacuum at said aperture when said piston moves away from said aperture; and illumination means disposed within said outer member for illuminating said aperture.
Claim 7
Dependent Claim
29 words
The work-holding device as defined in claim 4 further characterized in that said illumination means includes fiber optic light means extending within said outer member for illuminating said aperture.
Claim 8
Dependent Claim
28 words
The work-holding device as defined in claim 5 further characterized in that a power source means is disposed within said outer member to illuminate said fiber optic means.
Claim 9
Dependent Claim
36 words
The work-holding device as defined in claim 6 further characterized in that said illumination means includes positioning means for supporting said fiber optic light means within said inner member so that light shines through said aperture.
Claim 10
Dependent Claim
29 words
The work-holding device as defined in claim 4 further characterized in that said outer member includes a substantially hollow cylindrical portion for hand-holding and hand-carrying the work holding device.
Claim 11
Dependent Claim
30 words
The work-holding device as defined in claim 8 further characterized in that said inner member further includes a hollow tip element extending from said first end to provide said aperture.
Claim 12
Dependent Claim
25 words
The work-holding device as defined in claim 9 further characterized in that flexible seal means are provided on said hollow tip element around said aperture.
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) | 1984-05-04 | 1984-11-03 | 1985-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-04 | 1988-11-03 | 1989-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-04 | 1992-11-03 | 1993-05-05 | $7700.00 | Window Closed / Lapsed |