US4182459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety receptacle
Assignee: Individual
•
Filing: 1979-03-29
•
Granted: 1980-01-08
•
Expires: 1999-03-29
Abstract
Abstract A fusible link restrains a spring which in turn is connected to a chain or similar flexible retainer member extending between the housing part of the receptacle and the hinged lid part of the receptacle. In the presence of heat the link melts causing the spring to exert a pull upon the chain which pulls the lid part of the receptacle closed.
Inventors
- 👤 Clarence E. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:30
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/22; B65F; B65F1/00; B65F1/14; B65F2001/1494
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
199 words
In a safety receptacle having a housing part and a lid part, said housing part including a bottom wall and a side wall extending upwardly from the bottom wall and terminating in an upper marginal edge defining an opening into the housing part, a hinge connection connecting said lid part to said housing part adjacent its side wall upper marginal edge, said lid part being shiftable about said hinge connection between a closed position spanning said opening and an open over-center position, said lid part being shiftable into its closed position by the weight of the lid part after being moved through its open over-center position, the improvement comprising a flexible retainer member having one end connected to one of said housing and lid parts spaced from said hinge connection, shiftable anchor means including a heat sensitive actuator and connecting the other end of said retainer member to the other of said housing and lid parts spaced from said hinge connection, said anchor means upon actuation of said heat sensitive actuator for pulling on said flexible retainer and thereby urging said lid part through its open over-center position to cause the lid part to shift into its closed position.
Claim 2
Dependent Claim
199 words
In a safety receptacle having a housing part and a lid part, said housing part including a bottom wall and a side wall extending upwardly from the bottom wall and terminating in an upper marginal edge defining an opening into the housing part, a hinge connection connecting said lid part to said housing part adjacent its side wall upper marginal edge, said lid part being shiftable about said hinge connection between a closed position spanning said opening and an open over-center position, said lid part being shiftable into its closed position by the weight of the lid part after being moved through its open over-center position, the improvement comprising a flexible retainer member having one end connected to one of said housing and lid parts spaced from said hinge connection, shiftable anchor means including a heat sensitive actuator and connecting the other end of said retainer member to the other of said housing and lid parts spaced from said hinge connection, said anchor means upon actuation of said heat sensitive actuator for pulling on said flexible retainer and thereby urging said lid part through its open over-center position to cause the lid part to shift into its closed position.
Claim 3
Dependent Claim
84 words
The safety receptacle of claim 1 wherein said anchor means includes a connector secured to said retainer member, said connector being shiftable under the influence of a biasing means between first and second positions, said heat sensitive actuator normally retaining said connector in its first position, said biasing means for urging said connector into its second position upon actuation of said heat sensitive actuator wherein said connector exerts a pull on said retainer member to urge said lid part through its open over-center position.
Claim 4
Dependent Claim
60 words
The safety receptacle of claim 2 wherein said biasing means is a helical spring connected at one end to said connector and at its other end to said other of the housing and lid parts, said heat sensitive actuator including a fusible link secured between said connector in its first position and said other of the housing and lid parts.
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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) | 1983-01-07 | 1983-07-09 | 1984-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-07 | 1987-07-09 | 1988-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-07 | 1991-07-09 | 1992-01-08 | $7700.00 | Window Closed / Lapsed |