Patent US4711436A successfully refreshed from Google Patents.
US4711436A
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Grid assembly fixture, retention strap and method
Assignee: Westinghouse Electric Corp
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Filing: 1985-02-19
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Granted: 1987-12-08
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Expires: 2005-02-19
Abstract
Abstract A grid assembly fixture for use in assembling grid straps to form a grid comprises a generally flat plate having first and second sets of parallel grooves, with the grooves of the sets at right angles. A retention strap comprises first and second pairs of bars, the bars of each pair hinged together adjacent their ends, and releasable joining elements for joining the pair of bars. A method of assembling the grid straps includes positioning a first set of straps in a grid assembly fixture, positioning a second set of straps at right angles to the first set to form a grid, placing outer straps on the grid, and placing a retention strap on the outer straps.
Inventors
- 👤 Richard M. Kobuck
- 👤 Ralph W. Kalkbrenner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:10
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/30; G21C3/32; G21C3/34; G21C3/3424; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/531
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
95 words
A retention strap for holding in assembled relationship before welding a grid assembly comprising mating, perpendicular inner straps, and outer straps extending about said inner straps, comprising four bars, each of generally "H" shape, and including a pair of end posts connected together by a cross member, each post having openings therethrough located above and below the connecting cross member, means for hingedly connecting first and second said bars and means for hingedly connecting third and fourth said bars to provide pairs of hinged bars, and means for releasably connecting two said pairs of bars.
Claim 2
Dependent Claim
95 words
A retention strap for holding in assembled relationship before welding a grid assembly comprising mating, perpendicular inner straps, and outer straps extending about said inner straps, comprising four bars, each of generally "H" shape, and including a pair of end posts connected together by a cross member, each post having openings therethrough located above and below the connecting cross member, means for hingedly connecting first and second said bars and means for hingedly connecting third and fourth said bars to provide pairs of hinged bars, and means for releasably connecting two said pairs of bars.
Claim 3
Dependent Claim
52 words
A retention strap as in claim 1, said means for hingedly connecting two of said bars comprising hinge elements extending from a said post of each bar, said hinge elements being in vertically spaced relation and the pivotal axis of said hinge elements being spaced from the adjacent edges of said posts.
Claim 4
Dependent Claim
33 words
The retention strap of claim 1, said means for releasably connecting two pairs of bars comprising vertically spaced means for connecting adjacent bars with a space between the adjacent edges of adjacent bars.
Claim 5
Dependent Claim
33 words
The retention strap of claim 2, said means for releasably connecting two pairs of bars comprising vertically spaced means for connecting adjacent bars with a space between the adjacent edges of adjacent bars.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-07 | 1991-06-08 | 1991-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-07 | 1995-06-08 | 1995-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-07 | 1999-06-08 | 1999-12-08 | $7700.00 | Window Closed / Lapsed |