US3727807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety container for inflammables
Assignee: Justrite Manufacturing Co
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Filing: 1970-12-14
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Granted: 1973-04-17
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Expires: 1990-12-14
Abstract
Abstract A completely enclosed container has two openings or vents. One vent has an internal valve and a pouring spout attached thereto. The other vent has a spring biased safety cap which raises for filling or to vent vapors when the internal pressure exceeds some predetermined level, such as 5 p.s.i. A handle linkage is connected between the two vents so that the pouring valve opens first and the venting safety cap opens second, as the can is tipped. Suitable springs urge the valve, cap, and handle to an automatically closed position when the container is sitting at rest.
Inventors
- 👤 F Flider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:46
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/06; B65D47/08; B65D47/0857; B65D47/0876; B65D1/00; B65D1/12; B65D1/20; B65D25/00; B65D25/38; B65D25/40; B65D25/48; B65D2251/00; B65D2251/10; B65D2251/1016; B65D2251/1058; B65D2251/20; B65D2251/205; Y; Y10; Y10S; Y10S215/00; Y10S215/902
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
143 words
A safety can comprising a completely closed and airtight container having two vent means formed therein with a sliding handle controlled member extending between said vents, said handle being located between said vents and at approximately the center of gravity of said can, first spring controlled means associated with one of said vent means for controlling the flow of fluids through said one vent, second spring controlled means associated with the other of said vent means for controlling the flow of either a fluid or a gas through said other vent, and means operated responsive to a tipping of said can while said handle is held stationary for automatically operating said two vent means in a predetermined sequence, wherein said first means opens first and closes last as said can is tipped to a pouring position and then returned to a normal position.
Claim 2
Dependent Claim
143 words
A safety can comprising a completely closed and airtight container having two vent means formed therein with a sliding handle controlled member extending between said vents, said handle being located between said vents and at approximately the center of gravity of said can, first spring controlled means associated with one of said vent means for controlling the flow of fluids through said one vent, second spring controlled means associated with the other of said vent means for controlling the flow of either a fluid or a gas through said other vent, and means operated responsive to a tipping of said can while said handle is held stationary for automatically operating said two vent means in a predetermined sequence, wherein said first means opens first and closes last as said can is tipped to a pouring position and then returned to a normal position.
Claim 3
Dependent Claim
148 words
A safety can comprising a completely closed container having two vent means formed therein with a handle controlled means associated with said two vents, first spring controlled means associated with one of said vent means for controlling the flow of fluids through said one vent, second spring controlled means associated with the other of said vent means for controlling the flow of either a fluid or a gas through said other vent, means operated responsive to a tipping of said can while said handle is held stationary for automatically operating said two vent means in a predetermined sequence when said can is tipped between a normal and a pouring position, said vent operating means comprising a lost motion linkage, and said handle normally spring biased to a folded low profile position, said handle raising with said lost motion to an upstanding load bearing position without operating said vents.
Claim 4
Dependent Claim
148 words
A safety can comprising a completely closed container having two vent means formed therein with a handle controlled means associated with said two vents, first spring controlled means associated with one of said vent means for controlling the flow of fluids through said one vent, second spring controlled means associated with the other of said vent means for controlling the flow of either a fluid or a gas through said other vent, means operated responsive to a tipping of said can while said handle is held stationary for automatically operating said two vent means in a predetermined sequence when said can is tipped between a normal and a pouring position, said vent operating means comprising a lost motion linkage, and said handle normally spring biased to a folded low profile position, said handle raising with said lost motion to an upstanding load bearing position without operating said vents.
Claim 5
Dependent Claim
31 words
The safety can of claim 2 wherein said linkage means operates responsive to tipping said can for causing said one vent means to open for enabling the flow of fluid therethrough.
Claim 6
Dependent Claim
38 words
The safety can of claim 3 wherein said linkage means operates responsive to a further tipping of said can for thereafter causing the other of said vent means to open for enabling the flow of a gas therethrough.
Claim 7
Dependent Claim
45 words
The can of claim 1 wherein said one of said vents comprises an upstanding housing having a passage way with a spring controlled valve therein and a flexible pouring hose leading from said passage, said valve having a valve stem projecting out of sid housing.
Claim 8
Dependent Claim
25 words
Th can of claim 5 and a forked bracket means for lifting said valve stem to open said valve against the bias of said spring.
Claim 9
Dependent Claim
212 words
A safety can comprising a completely closed container having two handle controlled vent means formed therein, first spring controlled means associated with one of said vent means for controlling the flow of fluids through said one vent, said one of said vents comprising an upstanding housing having a passageway with said spring controlled means operating a valve therein and a flexible pouring hose leading from said passage, said valve having a valve stem projecting out of said housing, second spring contro-led means associated with the other of said vent means for controlling the flow of either a Fluid or a gas through said other vent, means operated responsive to a tipping of said can while said handle is held stationary for automatically operating said two vent means in a predetermined sequence, said last named means comprising a forked bracket means for lifting said valve stem to open said valve against the bias of said spring, and a sliding bar pivotally attached to said formked bracket, said handle comprising means for sliding said bar between a normal and an off normal position, and means engaged by said bar in said off normal position for opening said other vent, the sequence of control being such that said valve opens before said other vent opens.
Claim 10
Dependent Claim
212 words
A safety can comprising a completely closed container having two handle controlled vent means formed therein, first spring controlled means associated with one of said vent means for controlling the flow of fluids through said one vent, said one of said vents comprising an upstanding housing having a passageway with said spring controlled means operating a valve therein and a flexible pouring hose leading from said passage, said valve having a valve stem projecting out of said housing, second spring contro-led means associated with the other of said vent means for controlling the flow of either a Fluid or a gas through said other vent, means operated responsive to a tipping of said can while said handle is held stationary for automatically operating said two vent means in a predetermined sequence, said last named means comprising a forked bracket means for lifting said valve stem to open said valve against the bias of said spring, and a sliding bar pivotally attached to said formked bracket, said handle comprising means for sliding said bar between a normal and an off normal position, and means engaged by said bar in said off normal position for opening said other vent, the sequence of control being such that said valve opens before said other vent opens.
Claim 11
Independent Claim
124 words
A method of storing and dispensing a fluid comprising the steps of: a. pouring a fluid through an air vent and into a closed container, b. raising a folded handle on sadi container from a resting postion to a load bearing position with a lost mechanical motion, c. opening only a pouring spout from a spring sealed position responsive to an initial tipping of the can afte the completion of said lost motion, and d. opening said air vent from a second spring sealed position in addition to said opening of said pouring spout responsive to a further tipping of said container, said second spring having a predetermined pressure to vent said container when internal vapor pressure within said container exceeds said predetermined pressure.
Claim 12
Independent Claim
124 words
A method of storing and dispensing a fluid comprising the steps of: a. pouring a fluid through an air vent and into a closed container, b. raising a folded handle on sadi container from a resting postion to a load bearing position with a lost mechanical motion, c. opening only a pouring spout from a spring sealed position responsive to an initial tipping of the can afte the completion of said lost motion, and d. opening said air vent from a second spring sealed position in addition to said opening of said pouring spout responsive to a further tipping of said container, said second spring having a predetermined pressure to vent said container when internal vapor pressure within said container exceeds said predetermined pressure.
Claim 13
Dependent Claim
117 words
A safety can comprising two openings separated by substantially the width of the can, each of the openings being tubular housings integral with and sealed aginast the top of the container at points elevated above the normal fluid level in the can, both of said two tubular housings having openings at their tops for providing means for pouring fluid into one of said openings and out of the other of said openings means for automatically opening said one opening under control of excessive pressure inside said can, and handle controlled means for operating both of said openings responsive to the tipping of said can to a pouring position while said handle is held in a stationary position.
Claim 14
Dependent Claim
117 words
A safety can comprising two openings separated by substantially the width of the can, each of the openings being tubular housings integral with and sealed aginast the top of the container at points elevated above the normal fluid level in the can, both of said two tubular housings having openings at their tops for providing means for pouring fluid into one of said openings and out of the other of said openings means for automatically opening said one opening under control of excessive pressure inside said can, and handle controlled means for operating both of said openings responsive to the tipping of said can to a pouring position while said handle is held in a stationary position.
Claim 15
Dependent Claim
40 words
The can of claim 9 wherein said pouring means comprises an upstanding hollow tube having a spring biased cap covering the top of said tube and a handle with a linkage to open the cap when the can is tipped.
References Cited (Backward Citations)
US2574338A
Cited
US3254789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |