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US 4,262,448 AGranted
Safety storage cabinet
AssigneeJustrite Manufacturing Company
InventorFrank S. Flider
Life of this patent
Estimating the term…
Abstract
A safety cabinet for the storage of flammable or combustible materials has doors and a closure mechanism designed to automatically close and latch the doors in the event of fire. In one version, apparatus is provided to time the closing of the doors to insure a complete seal and lock. In a second version, apparatus is provided to seal the cabinet independently of the closing sequence of the doors.
Claims11
A door closure mechanism for a cabinet, said cabinet of the type having a top, a bottom, sides, a back, and a front, said closure mechanism adapted to close off said cabinet front, said closure mechanism comprising:
- a first door hinged to said cabinet front proximate one said side;
- a second door hinged to said cabinet front proximate the remaining of said sides;
- closing means to urge said first and second doors to a closed position;
- means mounted to the interior of said cabinet to time the closing of said doors,
- said timing means including an actuating bracket pivotally attached interiorly to said cabinet top;
- a slide bar pivotally attached to said actuating bracket,
- said slide bar being held by a spring in a first position,
- said slide bar moveable to a second position when said actuating bracket is pivoted;
- means on at least said first door to extend toward said slide bar as said door is closing;
- means on said slide bar to engage said extension means to hold said first door in a partially open position,
- said engaging means being defeated when said second door closes to contact said actuating bracket;
- means to latch said doors in a closed position responsive to the closing of said doors;
- and
- means to prop said doors in an open position,
- said prop means including link means pivotally mounted to each said door,
- said link means having a first unextended position and a second extended position,
- said link means being spring biased to remain normally in said first position, and
- means to engage said link to said cabinet when said link is in said second position,
- said link being fashioned from heat-fusible material whereby a selected rise in ambient temperature will fuse said link thereby releasing one said door from its open position and enabling said door to close.
16 more elements
A door closure mechanism for a cabinet, said cabinet of the type having a top, a bottom, a back, sides, and a front,
- said closure mechanism sealing off said front when closed,
- said closure mechanism comprising:
- a first door hinged to said cabinet front proximate one said side;
- a second door hinged to said cabinet front proximate said remaining side;
- closing means to urge said first and second doors to a closed position;
- means to latch said doors to said cabinet responsive to the closing of said doors;
- means mounted to the interior of said cabinet to time the latching of said doors,
- said latch timing means including a slot formed in said cabinet,
- an actuating bracket extending through said slot and moveable within said slot in a front to rear direction,
- said actuating bracket being spring-biased to remain normally at the rear of said slot;
- means to move said actuating bracket forward in said slot responsive to the closing of one said door,
- said actuating bracket thereby contacting and releasing said latching means carried within said remaining door;
- means to prop said doors in an open position,
- said prop means including link means pivotally mounted to each said door,
- said link means having a first unextended position and a second extended position,
- said link means being spring-biased to remain normally in said first position, and
- means to engage said link to said cabinet when said link is in said second position,
- said link being fashioned from heat-fusible material whereby a selected rise in ambient temperature will fuse said link thereby releasing said door from its open position and enabling said door to close.
15 more elements
A door closure mechanism for a cabinet, said cabinet of the type having a top, a bottom, a back, sides, and a front,
- said closure mechanism sealing off said front when closed,
- said closure mechanism comprising:
- a first door hinged to said cabinet front proximate one said side;
- a second door hinged to said first door in fan-fold configuration;
- closing means to urge said first and second doors to a closed position;
- means to latch said doors to said cabinet responsive to the closing of said doors;
- means mounted to the interior of said cabinet to actuate said latch means;
- means to guide said doors to said closed position,
- said guide means including a trolley attached to said second door,
- said guide means further including a track attached to the interior of said cabinet proximate to the top of said front;
- and
- means to retain said doors in an open position,
- said retaining means including a stop member extending into said track to engage said trolley,
- said stop member being spring biased to remain normally in an extended position,
- said stop member being fashioned from heat-fusible material wherein a selected rise in ambient temperature will fuse said stop member and cause said doors to move to said closed position .
12 more elements
Dependencies are inferred from the claim text.