Manipulating and restraining a two piece septic tank
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65D-088/76
B65D-008/00
출원번호
US-0412466
(2012-03-05)
등록번호
US-8857641
(2014-10-14)
발명자
/ 주소
Moore, Jr., Roy E.
Holbrook, Paul R.
Coppes, Bryan A.
Gandhi, Nimish
출원인 / 주소
Infiltrator Systems Inc
대리인 / 주소
Nessler, C.
인용정보
피인용 횟수 :
2인용 특허 :
12
초록▼
A molded plastic tank, optionally a septic tank, for containing liquid, comprises two injection molded plastic half tanks that have concave exterior walls and integral flanges, and that nest within each other for shipment or storage. Lengthwise ends of the half tanks have grips, for manual or machin
A molded plastic tank, optionally a septic tank, for containing liquid, comprises two injection molded plastic half tanks that have concave exterior walls and integral flanges, and that nest within each other for shipment or storage. Lengthwise ends of the half tanks have grips, for manual or machine lifting of the half tank from the top of a concave-down stack of half tanks, and for then assembling whole tanks. A sling is used to machine lift one or several half tanks by attachment to the grips or to lifting lugs at the top of the half tank. A corrugated septic tank having spaced apart access port regions has a grid of ribs in the exterior top valley corrugations and running across the access port region, to provide strength during testing and use.
대표청구항▼
1. An injection molded plastic half tank shaped for mating with a like half tank to form a whole tank for containing liquid, the half tank having a lengthwise vertical center plane, comprising: a wall having a generally convex exterior and a generally concave interior and a circumscribing edge;a sub
1. An injection molded plastic half tank shaped for mating with a like half tank to form a whole tank for containing liquid, the half tank having a lengthwise vertical center plane, comprising: a wall having a generally convex exterior and a generally concave interior and a circumscribing edge;a substantially planar flange running along said edge of the wall in a plane which is perpendicular to said vertical center plane, for mating with the flange of a like half tank;a plurality of integral tabs extending from the exterior of the half tank wall at each end of the tank and running parallel to said vertical center plane, located at each lengthwise end of the half tank proximate said flange, each tab having a through hole for receiving a grip; and,one or more rigid or flexible grips removably engaged with the through hole of each tab, for lifting of the half tank. 2. The half tank of claim 1 wherein the plurality of tabs comprises: at least one pair of integral tabs at each opposing end of a half tank; and, at least one removable flexible or rigid grip running between the two tabs of each of said at least one tab pair, each grip running across said vertical center plane in a direction which is generally parallel to the plane of said flange. 3. The half tank of claim 1 wherein the plurality of tabs comprises: two pairs of integral tabs at each lengthwise end of the half tank, the two pairs spaced apart so that one tab pair is on either side of said vertical center plane; and, wherein said rigid or flexible grip runs between the tabs of each tab pair, the grip having a length between the tabs of each tab pair which is sufficient for manual grasping of the grip and thereby lifting of the end of the half tank. 4. The half tank of claim 1 wherein said integral tab pairs are stacking lugs having a dimension sufficient to keep the flanges of like-half tanks spaced apart a distance which enables manual access to the each of said rigid or flexible grips when a multiplicity of half tanks are nested with each other. 5. The half tank of claim 1 further comprising a sling, connected to two or more of the grips, having a sling portion which extends lengthwise on the convex exterior of the half tank, the lengthwise portion having two spaced apart loops, each loop spaced apart from the grips, the loops shaped for receiving the tines of a forklifting device. 6. A septic tank comprised of two half tanks of claim 1, wherein the substantially planar flange of each half tank is mated and attached to the substantially planar flange of the other half tank. 7. A method of transporting, assembling, and installing a tank in an excavation in soil, wherein the tank is formed from two half tanks, each half tank having a vertical center plane, a length, and opposing ends and comprising (i) a wall having a concave interior surface and a convex exterior surface;(ii) a planar surface flange running around the periphery of the wall;(iii) two spaced apart integral circular portions on the convex exterior surface of the wall, shaped for enabling access ports to be cut therein; and,(iv) first lifting means comprising at least two tabs spaced apart across said vertical center plane at each of the opposing ends of the half tank proximate said flange, each tab having a through hole for receiving a grip, the tabs running perpendicular to the planar surface flange, together with at least one grip at each end of the half tank, each grip detachably engaged with the through hole of said two tabs, and each grip shaped for manual grasping of the half tank; which method comprises:(a) stacking half tanks with concave interior surfaces facing downwardly and with the flanges spaced apart so that said first lifting means is manually accessible between the spaced apart flanges;(b) transporting the stacked half tanks to an assembly site;(c) lifting a first half tank from the stack manually by grasping each end of the half tank at the grip portions of said first lifting means;(d) rotating the first half tank in space while manually grasping each end of the tank by said first lifting means, and placing the half tank on a work surface so the concave interior surface of the wall faces upwardly;(e) lifting a second half tank from the stack by manually grasping each end of the half tank at the grip portions of said first lifting means;(f) placing the second half tank on top of the first half tank so the concave interior surface thereof faces downwardly and then mating the flanges of the half tanks; and(g) fastening the two half tanks to each other to form a whole tank; and then(h) lifting the whole tank by means of a mechanical lifting device engaged with loops along the length of a sling running lengthwise along the second half tank and connected to said tabs, to thereby move the whole tank to a different location or to install the whole tank in an excavation in soil. 8. An injection molded plastic half tank shaped for mating with a like half tank to form a whole tank for containing liquid, the half tank having opposing ends and a lengthwise vertical center plane, comprising: a wall having a convex exterior and a concave interior and a circumscribing edge;a substantially planar flange running along said edge of the wall in a plane which is perpendicular to said vertical center plane, for mating with the flange of a like half tank;two pairs of integral tabs at each lengthwise end of the half tank, the tabs extending from the exterior of the half tank wall in proximity to said flange and running in a direction parallel to said vertical center plane, the pairs at each end spaced apart so that one tab pair is on either side of said vertical center plane, wherein each tab of each pair has a through hole for removably receiving a grip; and,a rigid or flexible grip running between the tabs of each tab pair, the grip removably engaged with the through hole of each tab, the grip having a length between the tabs which is sufficient for manual grasping and lifting of the end of the half tank. 9. The injection molded plastic half tank of claim 8 where the grip-receiving feature is a hole in the tab, and wherein the grip is a flexible member. 10. A septic tank comprised of two half tanks of claim 8, wherein the substantially planar flange of each half tank is mated and attached to the substantially planar flange of the other half tank.
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이 특허에 인용된 특허 (12)
Lombardi, II,Francis T., Blow molded septic tank and method of manufacture.
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