Patent US405469A successfully refreshed from Google Patents.
Patent US4159573A successfully refreshed from Google Patents.
US4159573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for manufacturing the parts of rotary vessels
Assignee: PRVNI BRNENSKA STROJIRNA NARODNI PODNIK
•
Filing: 1978-03-29
•
Granted: 1979-07-03
•
Expires: 1998-03-29
Abstract
Abstract An apparatus is disclosed for manufacturing parts for cylindrical vessels comprising a supporting structure having adjustable bearing and stop elements for positioning prefabricated and shaped segments.
Inventors
- 👤 Karel Plihal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:49
CPC Classifications
E; E04; E04H; E04H7/00; E04H7/02; E04H7/04; E04H7/06; B; B23; B23K; B23K7/00; B23K7/005; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49895; Y10T29/53; Y10T29/53022; Y10T29/53978
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
85 words
An apparatus for manufacturing parts for cylindrical vessels comprising a supporting structure provided with adjustable bearings and stop elements for positioning preformed curved sections of sheet material, a template defining a profile corresponding to the desired shape of a portion of the cylindrical vessel pivotably and removably mounted on said structure by means of an axle, the angular positions of said template in relation to the supporting structure being adjustable by means of angular position indexing means carried by said supporting structure and said template.
Claim 2
Independent Claim
85 words
An apparatus for manufacturing parts for cylindrical vessels comprising a supporting structure provided with adjustable bearings and stop elements for positioning preformed curved sections of sheet material, a template defining a profile corresponding to the desired shape of a portion of the cylindrical vessel pivotably and removably mounted on said structure by means of an axle, the angular positions of said template in relation to the supporting structure being adjustable by means of angular position indexing means carried by said supporting structure and said template.
Claim 3
Dependent Claim
45 words
The apparatus of claim 1 wherein the axle of the template is in a central part of the structure and is provided with an offset portion in a base portion of the axle so that the axle can overhang a portion of a preformed section.
Claim 4
Dependent Claim
51 words
The apparatus of claim 1 wherein the axle of the template is supported on a bearing which is adapted so that the rotation of the functional edge of the template forms a surface of revolution equidistant from the side of a meridian cross section of a part of the cylindrical vessel.
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) | 1982-07-02 | 1983-01-01 | 1983-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-02 | 1987-01-01 | 1987-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-02 | 1991-01-01 | 1991-07-03 | $7700.00 | Window Closed / Lapsed |