US4491251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety can for storage of liquids
Assignee: Eagle Manufacturing Co
•
Filing: 1983-11-18
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Granted: 1985-01-01
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Expires: 2003-11-18
Abstract
Abstract On a safety can for the storage and dispensing of liquid fuel and other volatile liquids from which the contents usually are dispensed at more or less frequent intervals, the pouring spout of the can has a cover which is at a free end of a lever which is spring biased to normally keep the cover tightly closed. The can has a fixed lifting handle in the form of a flat arch in a central area of the top of the can with the top of the arch providing a hand grip removed from the spout and its cover, a secondary handle extending above the lever on which the cover is secured and pivotally secured through an upwardly offset connection to the lever toward the free end of the biased lever terminates in a hand grip parallel with but spaced radially from the hand grip formed by the flat arch. The can may be lifted by grasping the two parallel hand grips but the spout cover will remain closed until one's hand, grasping both grips is tightened to pull the hand grip of the secondary handle in a generally horizontal, or radial, direction toward the first to controllably lift the spout cover from the end of the spout to an open position. Up and down movement of said secondary handle is ineffective to open the cover, radial movement alone being ineffective except lifting the can with the secondary lever alone held the spout cover more tightly closed.
Inventors
- 👤 Clarence L. Pratz
- 👤 Archimede DiClemente
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:09
CPC Classifications
B; B65; B65D; B65D45/00; B65D45/02; B65D45/04; B65D45/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
193 words
A safety can comprising a vessel with a closed top with a pouring spout near the periphery of the top, a primary fixed lifting handle slightly off-center on the top with a hand grip extending in a direction at right angles to the radius on which the spout is centered, a first lever mounted on the cover between the spout and the handle pivoted near one end to swing in a vertical arc above said radius with its free end extending above the pouring spout, a cover for the pouring spout suspended from the free end of said lever, spring means biasing said first lever to yieldably hold the cover tightly over the pouring spout, a secondary handle comprising a second lever having a hand grip at its free end parallel with the hand grip of the primary lifting handle, said second lever having an overcenter pivotal mounting on said first lever near to but inwardly from the center of said cover, said secondary handle being arranged to transmit lifting motion to the first lever to raise the cover from the spout only when moved in the direction toward the primary lifting handle.
Claim 2
Dependent Claim
193 words
A safety can comprising a vessel with a closed top with a pouring spout near the periphery of the top, a primary fixed lifting handle slightly off-center on the top with a hand grip extending in a direction at right angles to the radius on which the spout is centered, a first lever mounted on the cover between the spout and the handle pivoted near one end to swing in a vertical arc above said radius with its free end extending above the pouring spout, a cover for the pouring spout suspended from the free end of said lever, spring means biasing said first lever to yieldably hold the cover tightly over the pouring spout, a secondary handle comprising a second lever having a hand grip at its free end parallel with the hand grip of the primary lifting handle, said second lever having an overcenter pivotal mounting on said first lever near to but inwardly from the center of said cover, said secondary handle being arranged to transmit lifting motion to the first lever to raise the cover from the spout only when moved in the direction toward the primary lifting handle.
Claim 3
Dependent Claim
65 words
A safety can as defined in claim 1 wherein the can may be lifted against gravity by either the primary or the secondary handles, but both handles must be grasped in one hand for lifting and pouring to effect lifting of the cover from the spout while squeezing the hand grips of both handles to thereby exert movement of secondary handle toward the primary handle.
Claim 4
Dependent Claim
29 words
The invention defined in claim 2 wherein the secondary lifting handle exerts a tightening pressure on the spout if it alone is used to lift the can against gravity.
Claim 5
Dependent Claim
96 words
The improvement in claim 1 wherein the primary fixed lifting handle is in the form of a flat arch in which the hand grip is high enough above the can top and wide enough to look under the arch without obstruction from the hand or arm that is lifting the can, and which is simultaneously holding the two hand grips, to enable the one using the can to readily see the position of the pouring spout with relation to a receiving opening in a vessel into which contents of the safety can are to be poured.
Claim 6
Dependent Claim
42 words
The invention defined in claim 1 wherein the secondary handle comprises a bifurcated stem portion with a handle loop at the end which confronts the grip of fixed handle, said bifurcated stem portion enabling the secondary handle to straddle said first lever.
Claim 7
Dependent Claim
35 words
The invention defined in claim 1 wherein the overcenter pivotal mounting of the secondary handle includes friction means to retard the free swinging of said secondary handle about its pivot mounting of said first lever.
Claim 8
Dependent Claim
79 words
The invention defined in claim 1 wherein said first lever is a compound lever with a leg portion extending downward from the longitudinal axis of the lever with the pivot for the said lever being through said downward extending leg portion, providing an undercenter pivotal axis between the lever, and there is means positioned on said lever near its opposite end providing an overcenter pivotal connection between said first lever and the secondary handle which constitutes a second lever.
Claim 9
Dependent Claim
74 words
The invention defined in claim 7 in which the end of said secondary handle projects beyond the pivotal connection between it and said first lever and overhangs the end portion of the first lever from which the spout cover is suspended, whereby lifting of the can by said second handle effects such movement of the second lever on the first lever as to urge the cover more tightly in sealing contact with the spout.
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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) | 1988-01-01 | 1988-07-02 | 1989-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-01 | 1992-07-02 | 1993-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-01 | 1996-07-02 | 1997-01-01 | $7700.00 | Window Closed / Lapsed |