US2625272A

US2625272A - Sealed filling cap for fuel storage tanks

Info

Publication number: US2625272A
Authority: US
Inventors: Abraham A Arvintz; Nathan A Arvins; Robert A Arvintz
Original assignee: SANICOM Co Inc
Current assignee: SANICOM Co Inc; SANICOM COMPANY Inc
Priority date: 1950-08-25
Filing date: 1950-08-25
Publication date: 1953-01-13
Anticipated expiration: 1970-01-13

Description

Jan. 13, 1953 NT ETAL 2,625,272

SEALED FILLiNG CAP FOR FUEL STORAGE TANKS Filed Aug. 25, 1950 INVENTORS maize mm a HRVINTZ NQTHHN H. ARVINS BY ROBERT A. HRVINTZ ATTORNE Patented Jan. 13, 1953 SEALED FILLING CAP FOR FUEL STORAGE TANKS Abraham A. Arvintz and Nathan A. Arvins, Brooklyn, and Robert A. Arvintz, New York, N. Y., assignors to Sanicom Company, Inc, Brooklyn, N. Y., a corporation of New'Yorl-z Application August 25, 1950, Serial No. 181,544

9 Claims.

This invention relates to filling caps usually countersunk into a pavement of a filling station or the like for use in transferring fuel from a supply vehicle to tanks submerged in the ground under the pavement. More particularly, the invention deals with a filling cap of the character described having means for quickly removing the cover plate and to incorporate on the plate a seal valve member to provide a dual seal or closure substantially eliminating entrance of water into the filter chamber of the device.

The novel features of the invention will be best understood from the following description, when taken together with the accompanying drawing, which drawing is a sectional view through a filling cap device made according to our invention.

In the drawing, I represents the casing of the device which is embedded into a pavement or other supporting surface 2, so that the outer peripheral edge 3 of the casing is flush with the pavement. The casing has a large lower filter chamber 4, with a side outlet 5, with which a pipe couples for transferring filtered fuel to the receivin tank, not shown.

Above the chamber 4, the casing has an enlarged inlet chamber 6, sub-divided from the chamber 4 by an inwardly extending annular flange portion 1, to which is secured the outwardly extending flange 8 of a valve casing 9. The primary casing I has a passage Ill communicating with the chamber 6 for venting said chamber and for drainage, if desired.

The valve casing 9 has a lower bevelled valve seat I I, upon which a tapered disc valvev I2 is adapted to seat. The valve I2 carries a spaced annular ring I3, spaced from the valve by a series of opposed, webs M, two opposed webs I4 having vertical apertures I5, in which guide pins I 6 secured to the casing 9 operate. The pins I6 also check inward movement of the valve I2. The bore of the valve casing 9 is threaded, as seen at H, to receive a suitable fitting on the end of a supply pipe so that, when the filling cap is open, as later described, this coupling, as it is screwed into the casing 9, moves the valve I2 down into opened position, as indicated in dot and dash lines. The valve I2 has. a depending stem I8 which operates in a raised bearing IS on the bottom. of the. casing I and againstv a spring 20 disposed in said hearing. The spring 20 is tensioned to normally maintain the valve I2 in seated position. a

At 2| is shown a closure plate which seats in a groove portion 22 of the casing I', as shown. The

(Cl. 210-1G6) 2. plate 2|, has, centrally thereof, a socket 23 for the reception of a suitable wrench. Below the

socket

2,3 is a bearing 24 in which a pin 25 is slidably' and rotatably mounted. The pin 25 has a long, annular recessedv portion 26 engaged by one or more screws 21 to retain, the. pin 25' against displacement from the bearing 24'. while permitting free, rotary and. sliding movement therein. The lower end of the pin 25 carries a, supplemental seal cr valve plate 28 which seats upon the upper surface, of the valve casing 9.. as seen at 29, so as to. effect. a, seal between the chamber 6, and the interior of the casing 9 above the valve I2. This provides. a dual sealcontrolling communications between the chamber i5 and the chamber 4.

At. one side of the closure plate. ZI is a'bayonet slot enlargement 30, part. of the slot of which is indicated at 3|. This slot is adapted to. engage a pin 32 in the casing I todraw the plate. 2! into sealed position, thus effecting a primary seal to the casing 6.

Seating snugly in the bore 1 of the flange l is the upper ring portion 33 of a cup-shaped strainer 34 disposed in the chamber 4 in spaced relation to the walls of the casin I in the manner illustrated. The bottom of the strainer 3 has an upwardly pressed member 35 terminating in a ring opening 36 to fit snugly, but freely, around the valve stem Id. The ring 35 is adapted, to seat upon the bearing I9, thus posi tioning the strainer within the casing. With this construction, it will appear that a large strainer area is provided for efficient operation of the. device without, danger of retarding flow of the. fuel outwardly through t e discharge From time to time. the casing 9 can be removed for cleaning the strainer or for replacement. of the strainer, whenever desired. Itwill, be. understood from the foregoing that, when the cap 21 is removed, the seal or valve, plate 28 is removed with the cap, thus: immediately giving access to. the threaded bore of the valve casing t.

A spring 31 is provided between the. bottom of the seal or valve plate 28 and the bearing 24 to tensionally seat the member 28 as and when the plate 2.5 is in position. For this reason, move" ment of the pin 25 in the bearing 24 is provided.

Having fully described our invention, what we claim as new and desire to secure by Letters Patout is:

' 1,. A filling device of the-class described, com prising a casing; partitioned to form anupper inlet chamber and a lower strainer chamber, a detachable cover plate controlling admission to the inlet chamber, the lower part of the casing having an outlet for discharge of fluid passed through the device, a valve casing and a valve forming the partition between said chambers, tensional means for normally seating the valve on the valve casing to close communication between said chambers, a valve plate yieldably supported on the cover plate and yieldably engaging the valve casing to form a secondary seal between said chambers, a large cup-shaped strainer supported in the casing and arranged within the strainer chamber in spaced relation to the side and bottom walls thereof, the lower part of the casing having a bearing portion extending into the casing, the valve having a stem operating in said bearing portion, and a spring in the bearing portion engaging the stem to support the valve in seated position.

2. A filling device of the class described, comprising a casing partitioned to form an upper inlet chamber and a lower strainer chamber, a detachable cover plate controlling admission to the inlet chamber, the lower part of the casing having an outlet for discharge of fluid passed through the device, a valve casing and a valve forming the partition between said chambers, tensional means for normally seating the valve on the valve casing to close communication between said chambers, a valve plate yieldably supported on the cover plate and yieldably engaging the valve casing to form a secondary seal between said chambers, a large cup-shaped strainer supported in the casing and arranged within the strainer chamber in spaced relation to the side and bottom walls thereof, the lower part of the casing having a bearing portion extending into the casing, the valve having a stem operating in said bearing portion, a spring in the bearing portion engaging the stem to support the valve in seated position, and the bottom of the strainer having a raised portion seating on said bearing.

3. A filling device of the class described, comprising a casing partitioned to form an upper inlet chamber and a lower strainer chamber, a detachable cover plate controlling admission to the inlet chamber, the lower part of the casing having an outlet for discharge of fluid passed through the device, a valve casing and a valve forming the partition between said chambers, tensicnal means for normally seating the valve on the valve casing to close communication between said chamhers, a valve plate yieldably supported on the cover plate and yieldably engaging the valve casmg to form secondary Seal between Sam cham- 7 upper end of the tubular portion being internally bers, a large cup-shaped strainer supported in the casing and arranged within the strainer chamber in spaced relation to the side and bottom walls thereof, the lower part of the casing having a bearing portion extending into the casing, the valve having a stem operating in said bearing portion, a spring in the bearing portion engaging the stem to support the valve in seated position, the bottom of the strainer having a raised portion seating on said bearing, the partition portion of the casing being partially formed by an inwardly extending annular flange, and the upper end of the strainer having a ring seating in said flange.

4. A device of the character described, comprising a substantially cup-shaped main casing,

lar portion with a valve seat at its lower end, the upper end of the tubular portion being internally threaded, a valve, said valve having a stem operating in a bearing in the bottom of the main casing, a spring in said bearing engaging the stem to normally support the valve on said valve seat, said valve having a ring normally arranged within the upper threaded portion of the valve casing and spaced from the valve by a plurality of webs, means on the valve casing engaging webs of the valve for keying the valve against rotation, a cover plate detachably coupled with the upper end of the main casing for closing the inlet chamber, and a valve plate yieldably and movably supported on the closure plate and operatively engaging the valve casing to form a secondary seal between the upper and lower chambers of the main casing.

5. A device of the character described, comprising a substantially cup-shaped main casing, the casing having, intermediate its ends, an inwardly projecting annular flange partially partitioning the casing to form an upper inlet chamher and a lower strainer chamber, a valve casing mounted on said flange and extending into the lower chamber, said valve casing having a tubular portion with a valve seat at its lower end, the upper end of the tubular portion being internally threaded, a valve, said valve having a stem operating in a bearing in the bottom of the main casing, a spring in said bearing engaging the stem to normally support the valve on said valve seat, said valve having a ring normally arranged within the upper threaded portion of the valve casing and spaced from the valve by a plurality of webs, means on the valve casing engaging webs of the valve for keying the valve against rotation, a cover plate detachably coupled with the upper end of the main casing for closing the inlet chamber, a valve plate yieldably and mcvably supported on the closure plate and operatively engaging the valve casing to form a secondary seal between the upper and lower chambers of the main casing, and means retaining the valve plate against displacement from said closure plate.

6. A device of the character described, comprising a substantially cup-shaped main casing, the casing having, intermediate its ends, an inwardly projecting annular flange partially partitioning the casing to form an upper iniet chamber and a lower strainer chamber, a valve casing mounted on said flange and extending into the lower chamber, said valve casing having a tubular portion with a valve seat at its lower end, the

threaded, a valve, said valve having a stem oper ating in a bearing in the bottom of the casing, a spring in said bearing engaging the stem to normally support the valve on said valve seat, said valve having a ring normally arranged within the upper threaded portion of the valve casing and spaced from the valve by a plurality of webs, means on the valve casing engaging webs; of the valve for keying the valve against rotation, a cover plate detachably coupled with the upper end of the main casing for closing the inlet chamher, a valve plate yieldably and movably supported on the closure plate and operatively engaging the -valve casing to form a secondary seal between the upper and lower chambers of the main casing, means retaining the valve plate against displacement from said closure plate, a cup-shaped strainer arranged in the strainer chamber, said strainer seating on and partially encircling said bearing, and the upper end of the strainer having a part fitting snugly within the annular flange of said casing;

7. A device of the character described, comprising a substantially cup-shaped main casing, the casing having, intermediate its ends, an inwardly projecting annular flange partially partitioning the casing to form an upper inlet chamber and a lower strainer chamber, a valve casing mounted on said flange and extending into the lower chamber, said valve casing having a tubular portion with a valve seat at its lower end, the upper end of the tubular portion being internally threaded, a valve, said valve having a stem operating in a bearing in the bottom of the main casing, a spring in said bearing engaging the stem to normally support the valve on said valve seat, said valve having a ring normally arranged within the upper threaded portion of the valve casing and spaced from the valve by a plurality of webs, means on the valve casing en gaging webs of the valve for keying the valve against rotation, a cover plate detachably coupled with the upper end of the main casing for closing the inlet chamber, a valve plate yieldably and movably supported on the closure plate and operatively engaging the valve casing to form a secondary seal between the upper and lower;

chambers of the main casing, means retaining the valve plate against displacement from said' closure plate, a cup-shaped strainer arranged in the strainer chamber, said strainer seating on and partially encircling said bearing, the upper end of the strainer having a part fitting snugly within the annular flange of said casing, and the tween "said chambers, said cover plate having a central bearing projecting into said inlet chambar, a valve plate havin a projecting pin slidably mounted in said bearing, means on the bearing checking movement of the pin in both directions, means between said bearing and valve plate for yieldably supporting the cover plate in engagement with the valve casing to form a secondary seal between said chambers, and a large cupshaped strainer supported in the casing and arranged within the strainer chamber in spaced re lation to the side and bottom walls thereof.

9. In filling devices of the character described, comprising a casing having an upper inlet chamber and a lower strainer chamber, means comprising a valve closing communication between said chambers, a cover plate detachably coupled with the casing controlling admission to said inlet chamber, said plate having a central bearing projecting into said inlet chamber, a valve plate having a projecting pin slidably mounted in said bearing, means on the bearing checking movement of the pin in both directions and retaining the valve plate in coupled relation with said cover plate, a coil spring on said pin between the bearing and valve plate, said spring being adapted to tensionally support the valve plate in engagement with the first named means in forming a secondary seal between the inlet and strainer chambers; the lower portion of the casing having a discharge communicating with said strainer chamber, and the side wall of the upper portion of the casing having a vent communicating with the inlet chamber.

ABRAHAM A. ARVINTZ. NATHAN A. ARVINS. ROBERT A. ARVINTZ.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,164,450 Eshbaugh et al July 4, 1939 2,335,899 Arvintz Dec. '7, 1943