Patent CH176392A successfully refreshed from Google Patents.
US3565448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable sealing and fixturing device
Assignee: RTX Corp
•
Filing: 1969-04-18
•
Granted: 1971-02-23
•
Expires: 1989-04-18
Abstract
Abstract A fixturing and sealing mechanism for holding pipes or other workpieces of various sizes and at the same time affording a vacuum seal. Two arcuate or contoured members are pivoted about end walls of a vacuum chamber so that the radii of the two members abut in sealing relation. Each member contains a semicircular surface aperture of decreasing radius. By rotating the two members, circular apertures of different diameters are created by the intersection of the two members, and a seal is provided in the end wall of the chamber to accommodate different size workpieces.
Inventors
- 👤 Albert W Angelbeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:23
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/168; B; B23; B23K; B23K15/00; B23K15/04; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44291; Y10T24/44368; Y10T24/44376; Y10T24/44385; Y10T24/44462
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
107 words
A fixturing and sealing apparatus for a workpiece comprising: first and second arcuate shaped members having an inside and an outside circumferential portion; a radial arm extending from the inside circumferential portion of each of said members and being adjustably pivoted about a pivot element at its end whereby each of said members is rotatable about said pivot element in the plane of said circumferential portions; and a surface aperture of decreasing cross-sectional area in the outside circumferential portion of each said member, said members being mounted so that the outside circumferential portions of said members abut to form a closed aperture adapted to enclose a workpiece.
Claim 2
Dependent Claim
107 words
A fixturing and sealing apparatus for a workpiece comprising: first and second arcuate shaped members having an inside and an outside circumferential portion; a radial arm extending from the inside circumferential portion of each of said members and being adjustably pivoted about a pivot element at its end whereby each of said members is rotatable about said pivot element in the plane of said circumferential portions; and a surface aperture of decreasing cross-sectional area in the outside circumferential portion of each said member, said members being mounted so that the outside circumferential portions of said members abut to form a closed aperture adapted to enclose a workpiece.
Claim 3
Dependent Claim
23 words
Apparatus as in claim 1 in which said surface aperture is simicircular and whereby said members abut to form a circular closed aperture.
Claim 4
Dependent Claim
25 words
Apparatus as in claim 1 and including means for adjusting the point at which said members abut to vary the dimensions of said closed aperture.
Claim 5
Dependent Claim
154 words
A fixturing and sealing apparatus for a workpiece comprising: an enclosure wall having an opening therein; first and second arcuate shaped members having an inside and an outside circumferential portion which inside circumferential portion forms a seal with said opening; a radial arm extending from the inside circumferential portion of each of said members; first and second pivots mounted on said enclosure wall adjacent said opening; an aperture in the end of each said radial arm, the aperture in each of said radial arms being mounted on one of said pivots so that each said member is rotatable about one of said pivots in the plane of said circumferential portions, said members abutting at the outside circumference thereof within sAid opening; and a surface aperture of decreasing semicircular cross-sectional area in the outside circumferential portion of each member whereby a circular aperture is formed between said members at the point where said members abut.
Claim 6
Dependent Claim
154 words
A fixturing and sealing apparatus for a workpiece comprising: an enclosure wall having an opening therein; first and second arcuate shaped members having an inside and an outside circumferential portion which inside circumferential portion forms a seal with said opening; a radial arm extending from the inside circumferential portion of each of said members; first and second pivots mounted on said enclosure wall adjacent said opening; an aperture in the end of each said radial arm, the aperture in each of said radial arms being mounted on one of said pivots so that each said member is rotatable about one of said pivots in the plane of said circumferential portions, said members abutting at the outside circumference thereof within sAid opening; and a surface aperture of decreasing semicircular cross-sectional area in the outside circumferential portion of each member whereby a circular aperture is formed between said members at the point where said members abut.
Claim 7
Dependent Claim
37 words
Apparatus as in claim 4 and including a spring connected between said enclosure wall and each said radial arm for adjusting the position of said members within said opening to conform to the size of the workpiece.
Claim 8
Dependent Claim
35 words
Apparatus as in claim 5 in which the aperture in each of said radial arms is circular and of larger area than the said pivots whereby the rotational axis of said members may be adjusted.
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |