US2134985A

US2134985A - Pressure and sealing device for containers

Info

Publication number: US2134985A
Application number: US110989A
Authority: US
Inventors: William C Parrott
Original assignee: Individual
Current assignee: Individual
Priority date: 1936-11-16
Filing date: 1936-11-16
Publication date: 1938-11-01
Anticipated expiration: 1955-11-01

Description

Nov. 1, 1938. w. CfPARROTT' 2,134,985

PRESSURE AND SEALING DEVICE FOR CONTAINERS Filed Nov. 15, 1936 2 Sheets-Sheet 1 Nov. 1, 1938. w. c. PARROTT PRESSURE AND SEALING DEVICE FOR CONTAINERS Filed Nov. 16, 1936 2 Sheets-Sheet 2 A QQV m 8 Z a 5 2 2 W 6 7 V 3 3 .I 2 fl:- m q 2 I 1 6 6 5 2% /U 3 M /W- 3 E///// 2 2 5 9. w 6

Patented Nov. 1, 1938 9 UNITED STATES PATENT OFFICE PRESSURE AND SEALING DEVIGE' FOR CONTAINERS William C. Parrott, Stamford, Conn.

Application November 16, 1936, Serial No. 110,989 7 3 Claims. (01. 220-57) My invention relates to a pressure and sealing overhanging portion 3 to allowfor the insertion device for containers and I declare the following of the removable cover 6. to-be a full, clear, concise and exact description Removable cover 6 is oval shaped to conform thereof suficient to enable anyoneskilled in the to the'oval shaped opening 5 made by rim 3.

5 art to which it appertains to make and use the Ordinarily it is turned at right angles to rim 3,

same, reference being had to the accompanying forming oval shaped opening 5 and tilted for indrawings in which like reference characters'resertion within container I. fer to like parts throughout the specification. A groove I0 is formed adjacent the periphery The object of the invention is to providea on the upper side of cover 6 to allow for the in- 10 pressure and sealing device for use more particusertion or mounting of a rubber gasket I I which 10:

y 0n insecticide Sprayers, q Sp ay contacts a ridge I2 formed on the under surface tanks, beer containers, such as thermo-jugs, steel f ri 3 adjacent opening 5, whereby to form a drums and barrels, which utilizes air pressure for hermetically sealed joint when said cover 6 is for n th p y h r h will be p rf c forced upward into locked or sealing position.

y Safe against eXDlOSiOHS- An upstanding neck or throat portion I4 is .51

Heretofore, 0H p y of this type, the reformed integral with or otherwise secured to mova p portion or cover as not been suficover 6. Neck I4 is recessed at diametrically ciently Secured in position to prevent the opposite sides to provide open aligned recesses pressure within the container from forcing it off l5, l5 for th play of a bridge member s berth 0 into space usually with dangerous results to the jnafter mentioned. Furthermore, th upper user and bystanders' outer surface of throat I4 has external screw The present structure disposes the removable threads n for mounting a cap hereinafter top portion or cover within the container and mentioned.

forces it upward against the contiguous upper The means for holding removable cover 6 in 25 Well of the container for sealing m sealed position embodies a bridge member or 29 The dev is an improvement, principally by locking bar I6 which is arched. Its free ends Simplification of parts OVBI my former COIlStTuQ- 22, 22 rest in suitably formed countersunk retion illustrated and described in Letters Patent, 095595 or k t :3 23 d in overhanging rim 5 issued to me August 28,,1934- 3, whereby to hold said bridge member I6 and h Object Will be understood y referring to cover 6 from turning relative to rim 3. The rnidthe drawin s in which: dle portion of bridge member I6 is enlarged and Fi 1 is a perspec iv v w of he p portion fitted at 24 to the interior of throat l4. ofthe container showing the sealing member ap- Bridge member I5 i forced d d against plied thereto. the tension of a coiled spring 25 by cap 20 herein- 2 1s a detall Showmg perspectlve of after described. The lower end of coiled spring Ei femevajble m employe'd v 25 is projected and held in an aperture made in 3 1S a detail Vlew showme perspecnve'of the outside surface of the Wall of throat I4. The a m?mber employed spring coils about the outside surface of throat 4 15 an emarged fiagmentary w Showmg- I4. Its upper end rests against the lower surface 40 a central vertical section of the device, parts of bridge member "5, whereby to f ce said bridge 40 broke a ymember I6 normally upward.

Fi 5 is a detail v of a perspective of a The upper surface of bridge member, Is is enbridge member hployed. gaged by a cam skirt or depending flange 26 6 is a detail e Showing a Perspective 01 formed integral with the upper portion of cap 29.

p member employed and looking at the under- Cap 20 is spaced from the contiguous surface of side thereof. neck or throat I4' by a shoulder formed at 36 in Fig. 7 is a detail view. cap 20, whereas the uppermost part of cap 20 is Referring more particularly to the drawings, reduced in diameter at 32. Internal screw threads the device is shown assembled to the top of an in- 33 are formed on the inner surface of the uppersecticide container I having handles 2, 2 and a most part which cooperate with the screw'threads top rim overhanging portion 3 welded or other- I! in cap 20, whereby to draw removable cover wise secured to the-lateral cylindrical wall 4 upwards against overhanging rim 3 into sealing of the container I. An oval shaped central openposition.

ing 5 is provided by the top rim portion with an The lower surfaces of

cams

26, 26 are serrated 55 or roughened at 34, whereby to effect a frictional contact with the upper surface of bridge l6.

A central aperture 35 is made through the upper surface of cap 26 for the projection of a piston rod 36 that extends down through an aligned aperture made in bridge member IE to engage a piston 31 operating in cylinder 39. There is also an outlet pipe that extends down to nearly the bottom portion 5| of the container in order to insure emptying the contents thereof when the sprayer is in use. The upper end of said outlet pipe 56 projects up through a central aperture in nipple 52. A ring 53 is used to hold the pipe 50 to the inside of container l as shown and described more particularly in my former Patent No. 1,971,727 issued August 28, i934.

A handle 38 is screw mounted to' the upperend of piston rod 36. Handle 381 is made to engage in a detachable manner the upper surface of cap 26, whereby to turn not only said cap 20 on and off throat H but also to be used in carrying the sprayer. To this end a disc 40 is formed integral with the lower part of handle 38. Two diamete rically oppositely disposed depending L shaped teeth 4|, 4| are formed integral with the lower surface of disc 40. Said L shaped teeth 4|, 4| are adapted to engage the upper surface of cap 26 by being projected through

suitable apertures

42, 42 made therein for this purpose.

Each of the

apertures

42, 42 is are shaped and provided with oppositely disposed

offset openings

43, 43 for the insertion of L shaped teeth 4|, 4|, whereupon handle 38 is turned to cause the horizontal parts of L shaped teeth 4|, 4| to engage the under surface of raised

portions

45, 45 formed integral with the upper surface of cap 26. Said raised

portions

45, 45 provide upward countersunk recesses 44, 44, whereby to localize the position of teeth 4|, 4| when therein. It will be observed that there are two sets of raised

portions

45, 45 to allow the handle to be turned either to the right or left and engage a

set

45, 45. I

In operation the user will turn and tip removable cover 6 at right angles to its normal position with reference to the overhanging top part 3 of container In this position of cover 6 it can be inserted within container I. Bridge member H5 is mounted in place by inserting its central aperture over piston rod 36 before handle member 38 is screw mounted to its upper end or cap 20 screw mounted in place. Bridge member I6 is then dropped down in position within the opposite recesses l5, l5 in throat l4 and against the upper end of coiled spring '25.

Handle 38 is lowered with the L shaped hooks 4|, 4| opposite the

offset recesses

43, 43 in the top of cap 26. It is turned then to the'right to engage the upward countersunk recesses 44, 44 in cap l4 and then turned further to screw cap 26 upon its threads I! in throat l4, whereby to draw removable cover 6 upward into sealed position. Depending

cam skirts

26, 26 formed on 6 downward,

rim 3 to hold said bridge member l6 and cover 6 from turning relative to rim 3.

When removing detachable cover 6 handle 38 will be turned to the opposite set of upwardly countersunk recess 44, 44 in cap 26' before starting to unscrew cap 20 with the aid of said handle 38.

The upper end of piston rod 36 is screw mounted in a suitably threaded countersunk aperture in disc 40 of handle 38.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is as follows:

1. In a pressure and sealing device for containers, a casing having an oval opening at its top portion, a removable member suspended Within said casing, whereby to fit and close said opening, an annular neck portion formed on said removable member, a cap member screw mounted to said neck portion, said neck portion having recesses formed therein, a bridge piece engaging said cap member and fitting within said recesses and a cam formed in said cap member, whereby the turning of said cap member will cause said cam to press against said bridge piece to draw the removable member into sealing position.

2. In a pressure and sealing device for containers, a casing having an oval opening at its top portion, an oval :shaped removable member suspended within said casing, whereby to fit and close said opening, an annular neck I portion formed on said removable member, a cap member screw mounted to said neck portion, said neck portion having recesses formed therein, a bridge piece engaging said cap member and fitting withing said recesses and a cam formed in said cap member, whereby the turning of said cap member will cause said cam to press against said bridge piece to draw the removable member into sealing position, a rubber gasket mounted on said removable member and a coiled spring mounted between said removable member and said bridge piece to aid in separating said removable member from said bridge piece.

3. In a pressure and sealing device for containers, a casing having an opening at its top portion, an-oval shaped removable member suspended within said casing, whereby to fit and close said opening, an annular neck portion formed on said removable member, a cap member screw mounted to said neck portion, said neck portion having recesses formed therein, a bridge piece engaging said cap member and fitting with said recesses and a .cam means formed in said 'cap member, whereby the turning of said cap member will cause said cam means to press against said bridge piece to draw the removable member into sealing position, a groove formed in said removable member, a rubber gasket mounted in said groove, a ridge formed on said top portion and contacting with said rubber gasket and a coiled spring disposed between said bridge member and said removable member, whereby to aid in separating said removable member from said bridge piece.

WILLIAM C. PARROT'I.