Patent US4187578A successfully refreshed from Google Patents.
US4187578A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Caster bracket and method of forming same
Assignee: Weber Knapp Co
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Filing: 1978-06-16
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Granted: 1980-02-12
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Expires: 1998-06-16
Abstract
Abstract A caster bracket is fabricated from a single flat metal plate deformed to define a caster stud receiving curl; a pair of side plates and a connecting plate. The side plates are formed integrally with the connecting plate and are arranged in an essentially right angular relationship relative to both each other and the connecting plate, whereas the curl is defined by curling an extension plate formed integrally with one of the side plates. Preferably, fabrication is completed by bonding a free edge of the curl to its associated side plate and by bonding a free edge of the other side plate to the curl.
Inventors
- 👤 Carl H. Little
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:24
CPC Classifications
B; B60; B60B; B60B33/00; B60B33/0002; Y; Y10; Y10S; Y10S16/00; Y10S16/42; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
189 words
In a caster bracket of the type having a tubular means sized to receive a mounting stud of a caster assembly and plate means for attaching said tubular means to a piece of furniture, the improvement permitting the forming of said tubular means and said plate means from a single metal plate, said improvement comprising: said plate means includes a pair of side plates formed integrally with and arranged to upstand from one surface of a connecting plate along adjacent side edges thereof, said side plates having end edges disposed relatively adjacent one another, said tubular means is a curl formed integrally with and as an extension of one of said side plates along its one of said end edges, said curl having a free marginal edge disposed parallel to and immediately adjacent said one of said end edges of said one of said side plates, said free marginal edge is bonded to said one of said side plates, said curl is lengthwise bisected by each of said side plates, and said curl is bonded to the other of said side plates along its one of said end edges.
Claim 2
Dependent Claim
189 words
In a caster bracket of the type having a tubular means sized to receive a mounting stud of a caster assembly and plate means for attaching said tubular means to a piece of furniture, the improvement permitting the forming of said tubular means and said plate means from a single metal plate, said improvement comprising: said plate means includes a pair of side plates formed integrally with and arranged to upstand from one surface of a connecting plate along adjacent side edges thereof, said side plates having end edges disposed relatively adjacent one another, said tubular means is a curl formed integrally with and as an extension of one of said side plates along its one of said end edges, said curl having a free marginal edge disposed parallel to and immediately adjacent said one of said end edges of said one of said side plates, said free marginal edge is bonded to said one of said side plates, said curl is lengthwise bisected by each of said side plates, and said curl is bonded to the other of said side plates along its one of said end edges.
Claim 3
Independent Claim
183 words
A method of forming a caster bracket comprising the steps of: providing a flat metal blank having a connecting portion joined along adjacent side edges to a pair of side portions, said side portions having adjacently disposed end edges, each of said end edges extending in an essentially right angular relationship relative to that one of said adjacent side edges to which its associated one of said side portions is joined to said connecting portion, and an extension portion joined to one of said end edges of one of said side portions, said extension portion having a free marginal edge spaced from said one end edge; shaping said extension portion to form a curl whose axis is disposed essentially parallel to said one end edge; folding said blank along said side edges to position said side portions in a right angular relationship relative to said connecting portion, said curl and the other of said end edges being disposed in proximity upon completion of forming of said curl and folding of said blank; and bonding said other of said end edges to said curl.
Claim 4
Independent Claim
183 words
A method of forming a caster bracket comprising the steps of: providing a flat metal blank having a connecting portion joined along adjacent side edges to a pair of side portions, said side portions having adjacently disposed end edges, each of said end edges extending in an essentially right angular relationship relative to that one of said adjacent side edges to which its associated one of said side portions is joined to said connecting portion, and an extension portion joined to one of said end edges of one of said side portions, said extension portion having a free marginal edge spaced from said one end edge; shaping said extension portion to form a curl whose axis is disposed essentially parallel to said one end edge; folding said blank along said side edges to position said side portions in a right angular relationship relative to said connecting portion, said curl and the other of said end edges being disposed in proximity upon completion of forming of said curl and folding of said blank; and bonding said other of said end edges to said curl.
Claim 5
Dependent Claim
34 words
A method according to claim 2, providing the additional step of closing said curl by bonding said free marginal edge to said one of said side portions adjacent said one of said end edges.
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) | 1983-02-11 | 1983-08-13 | 1984-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-11 | 1987-08-13 | 1988-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-11 | 1991-08-13 | 1992-02-12 | $7700.00 | Window Closed / Lapsed |