US1000373A

US1000373A - Can-cover.

Info

Publication number: US1000373A
Authority: US
Inventors: William F Burnett
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-04-26
Filing date: 1911-04-26
Publication date: 1911-08-15
Anticipated expiration: 1928-08-15

Description

W; P. BURNETT.

CAN COVER.

APPLICATION FILED APIB..26, 1911.

1,000,373 Patented Aug. 15,1911.

WE B urn/e17 Hum/mg 32,1, ozwcaff a M COLUMBIA PLANOflRAPl-l KID-,WASHINOTDN D C WILLIAM IE. BURNETT, OF HEISSON, WASHINGTON.

CAN-COVER.

Specification of Letters Patent.

Patented Aug. 15, 1911.

Application filed April 26, 1911. Serial No. 623,407.

To all whom it may concern:

Be it known that 1, WILLIAM F. BURNETT, a citizen of the United States, residing at Heisson, inthe county of Clarke and State of WVashington, have invented certain new and useful Improvements in Can-Covers, of which the following is a specification, reference being had tothe accompanying drawmgs.

This invention relates to improvements in can covers and more particularly to a cover for milk cans, the invention having for its primary object the provision of very simple means whereby the ejection of the milk when the cover is inserted into the top of the can owing to the displacement of air, is entirely obviated.

The invention has for a further object the provision of a device for the purpose specified which is extremely simple and efficient in construction, may be manufactured at small cost and is admirably adapted for overcoming theundesirable feature of the present form of can cover as above noted.

With the above and other objects in view, the invention consists of the novel features of construction, combination and arrangement of parts hereinafter fully described and claimed, and illustrated in the accompanying drawings, in which Figure 1 is a top plan view showing the movable closure plate in open position; Fig. 2 is a section taken on the line 22 of Fig. 1; and Fig. 3 is a detail perspective view of the movable plate.

Referring in detail to the drawing 5 designates a milk can of the ordinary form, and 6 indicates my improved cover. This cover consists of the top plate 7 having an annular depending flange 8 which is adapted to fit within the upper open end of the can and closely engage the cylindrical wall thereof. The cover is further provided with an outwardly flared circumscribing flange 9 which extends above and over the upper edge of the can.

A plate 10 is pivotally mounted upon the upper surface of the top 7 of the can cover, the pivot 11 being eccentrically' disposed through said top plate. The plate 7 of the cover is also provided at or adjacent to its center with an opening 12 which is normally adapted to be closed by the pivoted plate 10. This plate lies closely upon the surface of the top plate 7 and extends to the edge thereof, the end of the pivoted plate 10 being angularly bent as indicated at 10' and also closely engaged with the inner surface of the flared flange 9 of the cover, the eX- tremity of said plate being bent over the outer edge of said flange as indicated at 13. The flange 9 is provided with an opening 14,

and the angular portion 10 of the pivoted plate 10 also has an opening 15 therein which is adapted to register with the openmg 1 1 when the plate is in position over the air vent opening 12. These alined openings are adapted to receive the hasp of a suitable padlock so as to retain the pivoted plate in its closed position as shown at'18 in Fig.

2. Lugs 16 are provided upon the upwardly and outwardly flared annular flange 9 of the can to limit the pivotal movement of the I plate 10, said plate having a suitable fingerpiece 17 secured thereto by means of which it may be conveniently moved.

In the practical operation of the device, when the cover is to be inserted into the top of the can, the platelO is moved to the position shown in Fig. '1 and the vent opening 12 uncovered. The depending annular flange 8 of the can top is then inserted into the open top of the can and as it is forced downwardly into the same, the air which is displaced escapes through the vent opening 12. It will be obvious that when the can has been filled almost to the limit of its capacity, the air pressure which is caused by forcing the cover into the can will displace part of the contents, and as no escape is provided for this air, the milk will be forced out of the top of the can between the rim or edge thereof and the flared flange 9 of the can cover, thereby not only wasting the milk but also spattering the clothes of the milk man. By means of my improved can cover, these defects are entirely overcome and a device provided whereby the air is permitted to escape from the can as the cover is inserted therein. After the cover has been placed in position, the movable plate 10 is locked thereon as previously described to close the vent opening and prevent the entrance of dirt or other foreign material into the can. The can cover is also provided with the usual handle 19 whereby it may be readily lifted or placed in the open end of the can to close the same.

From the foregoing it is thought that the construction and operation of my device will be readily understood. It is simple, durable, and highly efficient for the purpose in View. Owing to its extreme simplicity it will further be obvious that the device can be manufactured at a very low cost.

While I have shown and described the preferred construction and arrangement of the various parts, it will be understood that the device is susceptible of considerable modification without departing from the essential feature or sacrificing any of the advantages of the invention.

Having thus described the invention what is claimed is 1. The combination with a can, of a cover having an annular depending flange to fit into the top of the can and an outwardly and upwardly flared annular flange, the top of the cover having a vent opening therein, a plate pivoted at one end upon the cover and extending upon said flared annular flange, stops to limit the pivotal movement of said plate in either direction, and means engaged with said flared flange and the plate when the latter is disposed over the opening in the can top, to lock said plate against movement.

2. The combination with a can, of a cover having a depending flange to fit into the open end of the can, said cover also having an outwardly and upwardly flared annular flange, the top of the cover having a vent opening therein, a plate movable upon the cover adapted to be disposed over said opening to close the same, the free end of said plate engaging upon the flared flange of the cover, said flange having an opening therein said plate being also provided with an opening to register with the opening in said flange when the plate is disposed over the vent opening of the cover, and means engaging in said registering openings to look the plate in its closed position.

3. The combination with a can, of a cover therefor havlng an annular dependlng flange to fit into the top of the can and an upwardly and outwardly flared annular flange, the top of the cover having an opening therein, a plate eecentrically pivoted at one of its ends upon said cover and movable over said opening to close the same, the other end of said plate extending upon said flared annular flange, stops arranged on said flange to limit the movement of said plate, the extremity of the plate engaging over the edge of the flange, said plate and flange each having an opening therein adapted to register when the plate is in its closed position to receive a suitable locking elemen In testimony whereof I hereunto aflix my Witnesses:

E. N. STEELE, L. A. STEELE.

Copies of this patent may be obtained for five cents each, by addressing' the Commissioner of Patents, Washington, D. C.