Activation kits for pre-sets

Claim 2

An activation kit in combination with an underfloor pre-set unit, the pre-set having a top opening and nut means in the top opening, the activation kit comprising: an annular adjusting ring disposed in said top opening and having a vertically extending flange and a support flange connected thereto and extending horizontally inwardly therefrom and forming a ring opening; means on said ring forming a plurality of adjusting screw retaining slots, each slot comprised of a horizontally extending section and a vertically extending section and each section being open to the periphery of the ring whereby, when the ring is free from the pre-set, the head of an adjusting screw can be moved into the horizontal section and the threads thereof move into the vertical section from a point exterior to the ring; a plurality of adjusting screws respectively disposed in said slots with the heads in the horizontal sections and threads in the vertical sections, the threads of the screws being respectively threaded into said nuts; a plurality of holes formed in said support flange respectively in communication with said horizontal sections and providing access to the head of an adjusting screw in a horizontal section for turning the same to vertically move the adjusting ring relative to the pre-set unit; at least one snap-in access hatch mounted on said support flange and being dimensioned to partially cover said ring opening, the hatch having: (a) an inner edge extending across said ring opening and an outer edge adjacent said vertically extending flange; (b) a pair of downwardly extending flexible keeper fingers disposed adjacent opposite ends of said inner edge, each finger having keeper means adjacent its lower end; (c) at least one downwardly extending locking finger disposed on said outer edge and having retainer means adjacent its lower end; (d) means adjacent said inner edge forming a plurality of knock-outs; and a plurality of slots formed on the support flange respectively receiving said fingers whereby said keeper means and said retainer means are underneath and in engagement with said vertical flange.

Claim 3

An activation kit in combination with an underfloor pre-set unit, the pre-set having at least one power compartment, and at least one communications compartment, a horizontally extending top opening, and a plurality of nut means in the top opening, the kit comprising: an annular adjusting ring in said top opening and having a plurality of adjusting screws threaded into said nut means; a divider mounted inside of said pre-set and having a vertical wall extending upwardly toward said top opening and configured to form a socket surrounding said power compartment and isolating the same from said communications compartment; an annular carpet ring mounted on said adjusting ring having a vertically extending flange, a support flange formed on the bottom of the vertical flange and extending horizontally inwardly therefrom and including receptacle support portions, a carpet edge shield formed on the top of the vertical flange and extending outwardly and downwardly therefrom, a barrier formed partially on the bottom of the vertical flange and partially on said receptacle support portions and extending respectively downwardly therefrom into said socket; power receptacle means mounted on said receptacle support portions; receptacle plate disposed on said receptacle means; and a pair of flip lids disposed over said receptacle plate and for each flip lid, pivot means between the lid and vertical flange and providing for each lid to be moved between a closed position where the lid covers part of said receptacle means and an open position where the lid uncovers said receptacle part to provide access to the receptacle part.

Claim 4

An activation kit in combination with an underfloor pre-set unit, the pre-set having at least one power compartment, and at least one communications compartment, a horizontally extending top opening, and a plurality of nut means in the top opening, the kit comprising: an annular adjusting ring in said top opening and having a plurality of adjusting screws threaded into said nut means; a divider mounted inside of said pre-set and having a vertical wall extending upwardly toward said top opening and configured to form a socket surrounding said power compartment and isolating the same from said communications compartment; an annular carpet ring mounted on said adjusting ring having a vertically extending flange, a support flange formed on the bottom of the vertical flange and extending horizontally inwardly therefrom and including receptacle support portions, a carpet edge shield formed on the top of the vertical flange and extending outwardly and downwardly therefrom, a barrier formed partially on the bottom of the vertical flange and partially on said receptacle support portions and extending respectively downwardly therefrom into said socket; power receptacle means mounted on said receptacle support portions; receptacle plate disposed on said receptacle means; and a pair of flip lids disposed over said receptacle plate and for each flip lid, pivot means between the lid and vertical flange and providing for each lid to be moved between a closed position where the lid covers part of said receptacle means and an open position where the lid uncovers said receptacle part to provide access to the receptacle part.

Claim 5

An activation kit in combination with an underfloor pre-set unit, the pre-set having at least one power compartment, a horizontally extending top opening, and a plurality of nut means in the top opening, the kit comprising: an annular adjusting ring disposed in said top opening and having a vertically extending flange and a support flange connected thereto and extending horizontally inwardly therefrom and forming a ring opening; means on said ring forming a plurality of adjusting screw retaining slots, each slot comprised of a horizontally extending section and a vertically extending section and each section being open to the periphery of the ring whereby, when the ring is free from the pre-set, the head of an adjusting screw can be moved into the horizontal section and the threads thereof move into the vertical section from a point exterior to the ring; a plurality of adjusting screws respectively disposed in said slots with the heads in the horizontal sections and threads in the vertical sections, the threads of the screws being respectively threaded into the nuts; a plurality of holes formed in said support flange respectively in communication with said horizontal sections and providing access to the head of the adjusting screw in a horizontal section for turning the same to vertically move the adjusting ring relative to the pre-set unit; a pair of snap-in access hatches mounted on said support flange and each covering substantially one-half of said ring opening, each hatch having: (a) an inner edge extending across said ring opening and an outer edge adjacent said vertically extending flange; (b) a pair of downwardly extending flexible keeper fingers disposed adjacent opposite ends of said inner edge, each finger having keeper means adjacent its lower end; (c) at least one downwardly extending lock finger disposed on said outer edge and having retainer means adjacent its lower end; (d) means adjacent said inner edge forming a plurality of knock-outs; and a plurality of slots formed on the support flange respectively receiving said fingers whereby said keeper means and said retainer means are underneath and in engagement with said vertical flange.

Claim 6

An activation kit in combination with an underfloor pre-set unit, the pre-set having at least one power compartment, a horizontally extending top opening, and a plurality of nut means in the top opening, the kit comprising: an annular adjusting ring disposed in said top opening and having a vertically extending flange and a support flange connected thereto and extending horizontally inwardly therefrom and forming a ring opening; means on said ring forming a plurality of adjusting screw retaining slots, each slot comprised of a horizontally extending section and a vertically extending section and each section being open to the periphery of the ring whereby, when the ring is free from the pre-set, the head of an adjusting screw can be moved into the horizontal section and the threads thereof move into the vertical section from a point exterior to the ring; a plurality of adjusting screws respectively disposed in said slots with the heads in the horizontal sections and threads in the vertical sections, the threads of the screws being respectively threaded into the nuts; a plurality of holes formed in said support flange respectively in communication with said horizontal sections and providing access to the head of the adjusting screw in a horizontal section for turning the same to vertically move the adjusting ring relative to the pre-set unit; a pair of snap-in access hatches mounted on said support flange and each covering substantially one-half of said ring opening, each hatch having: (a) an inner edge extending across said ring opening and an outer edge adjacent said vertically extending flange; (b) a pair of downwardly extending flexible keeper fingers disposed adjacent opposite ends of said inner edge, each finger having keeper means adjacent its lower end; (c) at least one downwardly extending lock finger disposed on said outer edge and having retainer means adjacent its lower end; (d) means adjacent said inner edge forming a plurality of knock-outs; and a plurality of slots formed on the support flange respectively receiving said fingers whereby said keeper means and said retainer means are underneath and in engagement with said vertical flange.

Claim 7

An activation kit in combination with an underfloor pre-set unit, the pre-set having a base, at least one power compartment and at least one communications compartment adjacent the base, a horizontally extending top opening above the base, and a plurality of nut means in the top opening, the kit comprising: a rectangular shaped adjusting ring disposed in said top opening and having a vertically extending flange and a support flange connected thereto and extending horizontally inwardly therefrom and forming a ring opening; means on said ring forming a plurality of adjusting screw retaining slots, each slot comprised of a horizontally extending section and a vertically extending section and each section being open to the periphery of the ring whereby, when the ring is free from the preset, the head of an adjusting screw can be moved into the horizontal section and the threads thereof move into the vertical section from a point exterior to the ring; a plurality of adjusting screws respectively disposed in said slots with the heads in the horizontal sections and threads in the vertical sections, the threads of the screws being respectively threaded into said nuts; a plurality of holes formed in said support flange respectively in communication with said horizontal sections and providing access to the head of an adjusting screw in a horizontal section for turning the same to vertically move the adjusting ring relative to the pre-set unit; a snap-in access hatch mounted on said support flange, the hatch having: (a) an inner edge extending across said ring opening and an outer edge adjacent said vertically extending flange; (b) a pair of downwardly extending flexible keeper fingers disposed adjacent opposite ends of said inner edge, each finger having a keeper means adjacent its lower end; (c) at least one downwardly extending locking finger disposed on said outer edge and having retainer means adjacent its lower end; (d) means adjacent said inner edge forming a plurality of knock-outs; a plurality of slots formed on the support flange respectively receiving said fingers whereby said keeper means and said retainer means are underneath and in engagement with said vertical flange; a divider mounted on said base and having a vertical wall extending upwardly toward said top opening and configured to form a socket surrounding said power compartment and isolating the same from said communications compartment; a support bracket mounted on said support flange and having a flange abutting the inner edge of said access hatch, the support bracket having a central opening; a rectangular shaped carpet ring mounted on said support bracket and having a vertically extending flange, a support flange formed on the bottom of the vertical flange and extending horizontally inwardly therefrom and including receptacle support portions, a carpet edge shield formed on the top of the vertical flange and extending outwardly and downwardly therefrom, a barrier partially formed on the bottom of the vertical flange and partially on said receptacle support portions and extending respectively downwardly therefrom into said socket; power receptacle means mounted on said receptacle support portions; a receptacle plate disposed on said receptacle means; and a pair of flip lids disposed over said receptacle plate and for each flip lid, pivot means between the lid and vertical flange and providing for each lid to be moved between a closed position where the lid covers part of said receptacle means and an open position where the lid uncovers said receptacle part to provide access to the receptacle part.

Claim 8

An activation kit in combination with an underfloor pre-set unit, the pre-set having a base, at least one power compartment and at least one communications compartment adjacent the base, a horizontally extending top opening above the base, and a plurality of nut means in the top opening, the kit comprising: a rectangular shaped adjusting ring disposed in said top opening and having a vertically extending flange and a support flange connected thereto and extending horizontally inwardly therefrom and forming a ring opening; means on said ring forming a plurality of adjusting screw retaining slots, each slot comprised of a horizontally extending section and a vertically extending section and each section being open to the periphery of the ring whereby, when the ring is free from the preset, the head of an adjusting screw can be moved into the horizontal section and the threads thereof move into the vertical section from a point exterior to the ring; a plurality of adjusting screws respectively disposed in said slots with the heads in the horizontal sections and threads in the vertical sections, the threads of the screws being respectively threaded into said nuts; a plurality of holes formed in said support flange respectively in communication with said horizontal sections and providing access to the head of an adjusting screw in a horizontal section for turning the same to vertically move the adjusting ring relative to the pre-set unit; a snap-in access hatch mounted on said support flange, the hatch having: (a) an inner edge extending across said ring opening and an outer edge adjacent said vertically extending flange; (b) a pair of downwardly extending flexible keeper fingers disposed adjacent opposite ends of said inner edge, each finger having a keeper means adjacent its lower end; (c) at least one downwardly extending locking finger disposed on said outer edge and having retainer means adjacent its lower end; (d) means adjacent said inner edge forming a plurality of knock-outs; a plurality of slots formed on the support flange respectively receiving said fingers whereby said keeper means and said retainer means are underneath and in engagement with said vertical flange; a divider mounted on said base and having a vertical wall extending upwardly toward said top opening and configured to form a socket surrounding said power compartment and isolating the same from said communications compartment; a support bracket mounted on said support flange and having a flange abutting the inner edge of said access hatch, the support bracket having a central opening; a rectangular shaped carpet ring mounted on said support bracket and having a vertically extending flange, a support flange formed on the bottom of the vertical flange and extending horizontally inwardly therefrom and including receptacle support portions, a carpet edge shield formed on the top of the vertical flange and extending outwardly and downwardly therefrom, a barrier partially formed on the bottom of the vertical flange and partially on said receptacle support portions and extending respectively downwardly therefrom into said socket; power receptacle means mounted on said receptacle support portions; a receptacle plate disposed on said receptacle means; and a pair of flip lids disposed over said receptacle plate and for each flip lid, pivot means between the lid and vertical flange and providing for each lid to be moved between a closed position where the lid covers part of said receptacle means and an open position where the lid uncovers said receptacle part to provide access to the receptacle part.

Claim 9

An activation kit in combination with an underfloor pre-set unit, the pre-set having at least one power compartment and at least one communications compartment, a horizontally extending top opening, and a plurality of nut means in the top opening, the kit comprising: a rectangular shaped adjusting ring disposed in said top opening and having a vertically extending flange and a support flange connected thereto and extending horizontally inwardly therefrom and forming a ring opening; means on said ring forming a plurality of adjusting screw retaining slots, each slot comprised of a horizontally extending section and a vertically extending section and each section being open to the periphery of the ring whereby, when the ring is free from the pre-set, the head of an adjusting screw can be moved into the horizontal section and the threads thereof move into the vertical section from a point exterior to the ring; a plurality of adjusting screws respectively disposed in said slots with the heads in the horizontal sections and threads in the vertical sections, the threads of the screws being respectively threaded into said nuts; a plurality of holes formed in said support flange respectively in communication with said horizontal sections and providing access to the head of an adjusting screw in a horizontal section for turning the same to vertically move the adjusting ring relative to the pre-set unit; an elongated support divider extending between a pair of oppositely disposed support flanges and connected thereto, the divider having a pair of support arm respectively on opposite sides thereof; a snap-in access hatch mounted on said support flange, the hatch having: (a) an inner edge extending across said ring opening and an outer edge adjacent said vertically extending flange, the inner edge engaging and being supported on one of said divider support arms; (b) a pair of downwardly extending flexible keeper fingers disposed adjacent opposite ends of said inner edge, each finger having a keeper means adjacent its lower end; (c) at least one downwardly extending locking finger disposed on said outer edge and having retainer means adjacent its lower end; (d) means adjacent said inner edge forming a plurality of knock-outs; and a plurality of slots formed on the support flange respectively receiving said fingers whereby said keeper means and said retainer means are underneath and in engagement with said vertical flange; a divider mounted inside of said pre-set and having a vertical wall extending upwardly toward said top opening and configured to form a socket surrounding said power compartment and isolating the same from said communications compartment; a rectangular shaped carpet ring mounted on said support flange and on the other of said divider support arms and having a vertically extending flange, a support flange formed on the bottom of the vertical flange and extending inwardly therefrom and including receptacle support means, a carpet edge shield formed on the top of the vertical flange and extending outwardly and downwardly therefrom, a barrier formed partially on the bottom of the vertical flange and partially on said receptacle support portions and extending respectively downwardly therefrom into said socket; power receptacle means mounted on said receptacle support portions; a receptacle plate disposed on said receptacle means; and a pair of flip lids disposed over said receptacle plate and for each flip lid, pivot means between the lid and vertical flange and providing for each lid to be moved between a closed position where the lid covers part of said receptacle means and an open position where the lid uncovers said receptacle part to provide access to the receptacle part.

Claim 10

An activation kit in combination with an underfloor pre-set unit, the pre-set having at least one power compartment and at least one communications compartment, a horizontally extending top opening, and a plurality of nut means in the top opening, the kit comprising: a rectangular shaped adjusting ring disposed in said top opening and having a vertically extending flange and a support flange connected thereto and extending horizontally inwardly therefrom and forming a ring opening; means on said ring forming a plurality of adjusting screw retaining slots, each slot comprised of a horizontally extending section and a vertically extending section and each section being open to the periphery of the ring whereby, when the ring is free from the pre-set, the head of an adjusting screw can be moved into the horizontal section and the threads thereof move into the vertical section from a point exterior to the ring; a plurality of adjusting screws respectively disposed in said slots with the heads in the horizontal sections and threads in the vertical sections, the threads of the screws being respectively threaded into said nuts; a plurality of holes formed in said support flange respectively in communication with said horizontal sections and providing access to the head of an adjusting screw in a horizontal section for turning the same to vertically move the adjusting ring relative to the pre-set unit; an elongated support divider extending between a pair of oppositely disposed support flanges and connected thereto, the divider having a pair of support arm respectively on opposite sides thereof; a snap-in access hatch mounted on said support flange, the hatch having: (a) an inner edge extending across said ring opening and an outer edge adjacent said vertically extending flange, the inner edge engaging and being supported on one of said divider support arms; (b) a pair of downwardly extending flexible keeper fingers disposed adjacent opposite ends of said inner edge, each finger having a keeper means adjacent its lower end; (c) at least one downwardly extending locking finger disposed on said outer edge and having retainer means adjacent its lower end; (d) means adjacent said inner edge forming a plurality of knock-outs; and a plurality of slots formed on the support flange respectively receiving said fingers whereby said keeper means and said retainer means are underneath and in engagement with said vertical flange; a divider mounted inside of said pre-set and having a vertical wall extending upwardly toward said top opening and configured to form a socket surrounding said power compartment and isolating the same from said communications compartment; a rectangular shaped carpet ring mounted on said support flange and on the other of said divider support arms and having a vertically extending flange, a support flange formed on the bottom of the vertical flange and extending inwardly therefrom and including receptacle support means, a carpet edge shield formed on the top of the vertical flange and extending outwardly and downwardly therefrom, a barrier formed partially on the bottom of the vertical flange and partially on said receptacle support portions and extending respectively downwardly therefrom into said socket; power receptacle means mounted on said receptacle support portions; a receptacle plate disposed on said receptacle means; and a pair of flip lids disposed over said receptacle plate and for each flip lid, pivot means between the lid and vertical flange and providing for each lid to be moved between a closed position where the lid covers part of said receptacle means and an open position where the lid uncovers said receptacle part to provide access to the receptacle part.

Claim 11

An adjusting ring for an underfloor device comprising: an annular body having a vertically extending flange and a support flange connected thereto and extending horizontally inwardly therefrom and forming a ring opening; a plurality of access openings formed in and extending through said support flange; means on said body forming a plurality of retaining slots, each slot comprised of a horizontally extending section and a vertically extending section and each section being open to the periphery of the ring whereby the head of an adjusting screw can be moved into the horizontal section and the threads thereof moved into the vertical section from a point exterior to the ring; and each said horizontal section being configured to retain the head of adjusting screw therein in a position aligned with one of said access openings.

Claim 12

An adjusting ring for an underfloor device comprising: an annular body having a vertically extending flange and a support flange connected thereto and extending horizontally inwardly therefrom and forming a ring opening; a plurality of access openings formed in and extending through said support flange; means on said body forming a plurality of retaining slots, each slot comprised of a horizontally extending section and a vertically extending section and each section being open to the periphery of the ring whereby the head of an adjusting screw can be moved into the horizontal section and the threads thereof moved into the vertical section from a point exterior to the ring; and each said horizontal section being configured to retain the head of adjusting screw therein in a position aligned with one of said access openings.

Claim 13

An adjusting ring and support divider for an underfloor device comprising: a rectangular shaped, four-sided body having a vertically extending flange and a support flange connected thereto and extending horizontally inwardly therefrom and forming a ring opening; means on said body forming a plurality of adjusting screw retaining slots, each slot comprised of a horizontally extending section and a vertically extending section and each section being open to the periphery of the ring whereby the head of an adjusting screw can be moved into the horizontal section and the threads thereof move into the vertical section from a point exterior to the ring; a first pair of keeper slots formed on the support flange on a first side of the body for receiving flexible keeper fingers; a second pair of keeper slots formed on the support flange on a second side of the body opposite said first side for receiving flexible keeper fingers; a first pair of retainer/guide slots formed on the support flange on a third side of the body between the first and second sides, for receiving a first flexible retainer finger and a first guide post; a second pair of retainer/guide slots formed on the support flange on a fourth side of the body opposite the third side for receiving a second flexible retainer finger and a second guide post; a first divider post disposed between the first pair of retainer/guide slots and extending up from the support flange; a second divider post disposed between the second pair of retainer/guide slots and extending up from the support flange; an elongated support divider extending between said third and fourth sides and mounted on the support flange and having a pair of cavities formed respectively at the opposite ends receiving said first and second divider posts for retaining the divider in position, and further having a pair of support arms respectively on opposite sides thereof, at least one of said arms having a pair of semi-circular slots, said arms being respectively for supporting the inner edge of an access hatch and/or the inner edge of a carpet ring.

Claim 14

An adjusting ring and support divider for an underfloor device comprising: a rectangular shaped, four-sided body having a vertically extending flange and a support flange connected thereto and extending horizontally inwardly therefrom and forming a ring opening; means on said body forming a plurality of adjusting screw retaining slots, each slot comprised of a horizontally extending section and a vertically extending section and each section being open to the periphery of the ring whereby the head of an adjusting screw can be moved into the horizontal section and the threads thereof move into the vertical section from a point exterior to the ring; a first pair of keeper slots formed on the support flange on a first side of the body for receiving flexible keeper fingers; a second pair of keeper slots formed on the support flange on a second side of the body opposite said first side for receiving flexible keeper fingers; a first pair of retainer/guide slots formed on the support flange on a third side of the body between the first and second sides, for receiving a first flexible retainer finger and a first guide post; a second pair of retainer/guide slots formed on the support flange on a fourth side of the body opposite the third side for receiving a second flexible retainer finger and a second guide post; a first divider post disposed between the first pair of retainer/guide slots and extending up from the support flange; a second divider post disposed between the second pair of retainer/guide slots and extending up from the support flange; an elongated support divider extending between said third and fourth sides and mounted on the support flange and having a pair of cavities formed respectively at the opposite ends receiving said first and second divider posts for retaining the divider in position, and further having a pair of support arms respectively on opposite sides thereof, at least one of said arms having a pair of semi-circular slots, said arms being respectively for supporting the inner edge of an access hatch and/or the inner edge of a carpet ring.

Claim 15

An access hatch for an underfloor device comprising: a rectangular shaped plate having a top planar surface, one edge of the plate being an inner edge and an opposite edge being an outer edge and the edges therebetween being side edges; a rib means extending around the periphery of the plate and comprised of inner, outer, and side rib sections respectively extending down from said inner, outer, and side edges; first and second pairs of knock-outs in said plate, the knock-outs being formed by first and second pairs of inner and outer, concentric, U-shaped undercuts on the bottom of said plate, the ends of the legs of the U of each undercut terminating in said inner rib section, the cut-outs providing that the material of the plate within the confines of the cut-out can be broken away; a main rib extending down from the bottom of said plate and extending between and parallel to said inner and outer rib sections and connected to said side rib sections and being closely adjacent the bend in said cut-outs; a pair of cross ribs extending down from the bottom of said plate and connected to said outer rib section and to said main rib and being respectively aligned with said first and second pairs of undercuts; a first pair of knock-out ribs extending down from the bottom of the plate and connected to said inner rib section and said main rib and being closely adjacent said inner undercut of the first pair; a second pair of knock-out ribs extending down from the bottom of the plate and connected to said inner rib section and said main rib and being closely adjacent said inner undercut of the second pair; a pair of downwardly extending flexible keeper fingers respectively disposed on said side rib sections adjacent opposite ends of said inner edge, each finger having keeper means adjacent its lower end; at least one downwardly extending locking finger disposed on said outer edge and having locking means adjacent its lower end; and a pair of shield posts respectively formed on said side rib sections between said main rib and said keeper fingers, each post being closely adjacent its finger and extending coextensively downwardly therewith.

Claim 16

An access hatch for an underfloor device comprising: a rectangular shaped plate having a top planar surface, one edge of the plate being an inner edge and an opposite edge being an outer edge and the edges therebetween being side edges; a rib means extending around the periphery of the plate and comprised of inner, outer, and side rib sections respectively extending down from said inner, outer, and side edges; first and second pairs of knock-outs in said plate, the knock-outs being formed by first and second pairs of inner and outer, concentric, U-shaped undercuts on the bottom of said plate, the ends of the legs of the U of each undercut terminating in said inner rib section, the cut-outs providing that the material of the plate within the confines of the cut-out can be broken away; a main rib extending down from the bottom of said plate and extending between and parallel to said inner and outer rib sections and connected to said side rib sections and being closely adjacent the bend in said cut-outs; a pair of cross ribs extending down from the bottom of said plate and connected to said outer rib section and to said main rib and being respectively aligned with said first and second pairs of undercuts; a first pair of knock-out ribs extending down from the bottom of the plate and connected to said inner rib section and said main rib and being closely adjacent said inner undercut of the first pair; a second pair of knock-out ribs extending down from the bottom of the plate and connected to said inner rib section and said main rib and being closely adjacent said inner undercut of the second pair; a pair of downwardly extending flexible keeper fingers respectively disposed on said side rib sections adjacent opposite ends of said inner edge, each finger having keeper means adjacent its lower end; at least one downwardly extending locking finger disposed on said outer edge and having locking means adjacent its lower end; and a pair of shield posts respectively formed on said side rib sections between said main rib and said keeper fingers, each post being closely adjacent its finger and extending coextensively downwardly therewith.