US3843086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspension fastener
Assignee: FASTWAY FASTENERS
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Filing: 1971-03-22
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Granted: 1974-10-22
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Expires: 1991-03-22
Abstract
Abstract A suspension fastener is described of the type adapted to be used in conjunction with a T-bar, said fastener being characterized by the fact that it is provided with leg portions and flange portions, said flange portions being responsive to movement of said leg portions toward each other for releasably looking said flange portions to each other.
Inventors
- 👤 W Ptak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:29
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/006; F; F16; F16B; F16B2/00; F16B2/20; F16B2/22; F16B2/24; F16B2/241; F21; F21V; F21V21/00; F21V21/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
199 words
A suspension fastener adapted to be secured to a T-bar, said fastener comprising a resilient one-piece member having divergent leg portions, and flanges adapted to overlap each other and underlie a portion of said T-bar when said leg portions are moved toward each other, one of said fastener flanges being provided with a pair of transversely spaced recesses each extending inwardly from the side edges of said fastener flange and each having at least one edge extending substantially perpendicular to said side edges and constituting a shoulder or stop, the other of said fastener flanges including a pair of transversely spaced tongues formed by slitting the metal of said other fastener flange inwardly from each of the side edges of said other fastener flange and bending the metal adjacent one side of the slit out ot the plane of said other fastener flange, whereby when said fastener flanges are moved into overlapping relationship with each other, said tongues initially separate said flanges and subsequently resiliently enter said recesses and engage said shoulders or stops to impede inadvertent separation of said fastener flanges from each other, and a supporting screw secured to and depending from one of said fastener flanges.
Claim 2
Dependent Claim
199 words
A suspension fastener adapted to be secured to a T-bar, said fastener comprising a resilient one-piece member having divergent leg portions, and flanges adapted to overlap each other and underlie a portion of said T-bar when said leg portions are moved toward each other, one of said fastener flanges being provided with a pair of transversely spaced recesses each extending inwardly from the side edges of said fastener flange and each having at least one edge extending substantially perpendicular to said side edges and constituting a shoulder or stop, the other of said fastener flanges including a pair of transversely spaced tongues formed by slitting the metal of said other fastener flange inwardly from each of the side edges of said other fastener flange and bending the metal adjacent one side of the slit out ot the plane of said other fastener flange, whereby when said fastener flanges are moved into overlapping relationship with each other, said tongues initially separate said flanges and subsequently resiliently enter said recesses and engage said shoulders or stops to impede inadvertent separation of said fastener flanges from each other, and a supporting screw secured to and depending from one of said fastener flanges.
Claim 3
Dependent Claim
31 words
The combination, as defined in claim 1, wherein said screw is provided with a head which rests on said one of said flange portions, said screw being staked to the latter.
Claim 4
Dependent Claim
198 words
A suspension fastener adapted to be secured to a T-bar, said fastener compRising a resilient one-piece member having divergent leg portions, each leg terminating in an oppositely inwardly directed flange portion adapted to underlie said T-bar in overlapping relation with each other when said leg and flange portions are moved toward each other, one of said flanges being provided with at least one recess extending inwardly from each of the side edges of said flange, said recesses having edges extending substantially perpendicular to the side edges of said flange and constituting tongue receiving shoulders or stops, the other of said flanges being provided with at least one tongue integrally formed in said other flange adjacent to and extending inwardly from each of the side edges of said other flange, said tongue extending out of the plane of said other flange in a direction to enter a portion of said recess in said first named flange when said flanges are moved into overlapping relationship with each other, said tongues and said recesses defining lock means to prevent inadvertent separation of said flanges from each other, and a threaded supporting element secured to and depending from one of said flanges.
Claim 5
Dependent Claim
198 words
A suspension fastener adapted to be secured to a T-bar, said fastener compRising a resilient one-piece member having divergent leg portions, each leg terminating in an oppositely inwardly directed flange portion adapted to underlie said T-bar in overlapping relation with each other when said leg and flange portions are moved toward each other, one of said flanges being provided with at least one recess extending inwardly from each of the side edges of said flange, said recesses having edges extending substantially perpendicular to the side edges of said flange and constituting tongue receiving shoulders or stops, the other of said flanges being provided with at least one tongue integrally formed in said other flange adjacent to and extending inwardly from each of the side edges of said other flange, said tongue extending out of the plane of said other flange in a direction to enter a portion of said recess in said first named flange when said flanges are moved into overlapping relationship with each other, said tongues and said recesses defining lock means to prevent inadvertent separation of said flanges from each other, and a threaded supporting element secured to and depending from one of said flanges.
Claim 6
Dependent Claim
35 words
A fastener, as defined in claim 3, wherein said supporting element is provided with a head which rests on said one of said second flange portions, and said supporting element is staked to the latter.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |