US3584859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum-operated specimen-holding device
Assignee: Individual
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Filing: 1969-01-03
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Granted: 1971-06-15
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Expires: 1989-01-03
Abstract
Abstract A vacuum-operated device for holding test specimens for cutting or shaping purposes. The device includes a rectangular base portion having a chamber with an open upper side. An adapter plate is parallel with and fixed to the upper side and has a recess formed around the inner edge thereof to receive a perforated holding plate. The holding plate can be any one of a large quantity of plates that mate with the recess and provide a perforated geometric closure for the open side. When a test specimen having the same shape as the perforated closure is placed thereon, a vacuum is applied to the enclosure of the device and the resultant force on the specimen holds it in place.
Inventors
- 👤 Robert E Siron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:47
CPC Classifications
B; B25; B25B; B25B11/00; B25B11/005
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
145 words
A vacuum-operated, specimen-holding device comprising a housing having an opening in the upper side thereof; an adapter plate fixedly secured to said housing on the upper side thereof adjacent to said opening, said plate having an opening therein that is coincident with said open side, and further being formed with a recessed flange around the periphery of said adapter opening; a perforated holding plate matingly received in said recess in contact with said inner periphery and providing a closure for said open side, said holding plate being selected from a plurality of perforated holding plates, each one being adapted for mating with said recessed flange; each of said perforated plates having a nonplanar shape for enclosing said opening; and said housing being connected to a vacuum source for holding specimen on the perforated plate when the specimen has the same nonplanar shape adjacent said plate.
Claim 2
Dependent Claim
145 words
A vacuum-operated, specimen-holding device comprising a housing having an opening in the upper side thereof; an adapter plate fixedly secured to said housing on the upper side thereof adjacent to said opening, said plate having an opening therein that is coincident with said open side, and further being formed with a recessed flange around the periphery of said adapter opening; a perforated holding plate matingly received in said recess in contact with said inner periphery and providing a closure for said open side, said holding plate being selected from a plurality of perforated holding plates, each one being adapted for mating with said recessed flange; each of said perforated plates having a nonplanar shape for enclosing said opening; and said housing being connected to a vacuum source for holding specimen on the perforated plate when the specimen has the same nonplanar shape adjacent said plate.
Claim 3
Dependent Claim
39 words
A vacuum-operated, specimen holding device as set forth in claim 1 wherein said nonplanar shape of said perforated holding plate is comprised of at quadrants, at least one of said quadrants being symmetrical and parallel with an adjacent quadrant.
Claim 4
Dependent Claim
138 words
A vacuum-operated holding device comprising a base member having a chamber with an open upper side; an adapter plate parallel with and secured to said upper side having an opening therethrough and having a recess formed around the inner periphery thereof; a perforated holding plate matingly received in said recess in contact with said inner periphery and providing a closure for said upper side, and holding plate being selected from a plurality of perforated holding plates of varying shape and having a nonplanar geometric upper surface conforming to the contour of a specimen to be held thereby for providing uniform retaining force along the surface of said specimen; and means connecting said base member chamber to a vacuum source whereby a specimen disposed on the upper side of said holding plate can be held to said perforated plate.
Claim 5
Dependent Claim
138 words
A vacuum-operated holding device comprising a base member having a chamber with an open upper side; an adapter plate parallel with and secured to said upper side having an opening therethrough and having a recess formed around the inner periphery thereof; a perforated holding plate matingly received in said recess in contact with said inner periphery and providing a closure for said upper side, and holding plate being selected from a plurality of perforated holding plates of varying shape and having a nonplanar geometric upper surface conforming to the contour of a specimen to be held thereby for providing uniform retaining force along the surface of said specimen; and means connecting said base member chamber to a vacuum source whereby a specimen disposed on the upper side of said holding plate can be held to said perforated plate.
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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |