US3902618A — Primary nurser assembly

Claim 1

Independent Claim 109 words

A nurser assembly for mounting over the opening in a container comprising a dam member spanning the opening and having a partially detachable portion providing an access opening for discharge of contents of the container, a nipple, means supporting the nipple in a position overlying said dam member, said detachable portion being defined by a scoring configuration providing at least two leaf sections, each leaf section pivotal about its own first hinge, a common second hinge connecting said leaf sections, means for actuating said detachable portion whereby said leaf sections pivot about said first and common hinge connections and pivotal displacement thereof is limited by said common hinge connection.

Claim 2

Dependent Claim 109 words

A nurser assembly for mounting over the opening in a container comprising a dam member spanning the opening and having a partially detachable portion providing an access opening for discharge of contents of the container, a nipple, means supporting the nipple in a position overlying said dam member, said detachable portion being defined by a scoring configuration providing at least two leaf sections, each leaf section pivotal about its own first hinge, a common second hinge connecting said leaf sections, means for actuating said detachable portion whereby said leaf sections pivot about said first and common hinge connections and pivotal displacement thereof is limited by said common hinge connection.

Claim 3

Dependent Claim 81 words

A nurser assembly as claimed in claim 1 including a retainer mounted in said dam member and wherein said nipple includes a base portion having an annular locking rib engagable with said retainer, the base portion of the nipple engaging a wall portion of said dam member outwardly of said detachable portion and including means defining a plurality of circumferentially spaced radially extending channels in said wall portion of said dam member providing air flow passages between said nipple and dam.

Claim 4

Dependent Claim 54 words

A nurser assembly as claimed in claim 2 wherein said retainer is of inverted U-shaped cross section and includes inner and outer radially spaced skirt members, the inner skirt member engagable with the locking portion of said nipple and having at least one slot in its lower terminal edge defining an air flow passage.

Claim 5

Dependent Claim 32 words

A nurser assembly as claimed in claim 3 wherein the dam member is provided with a radially inwardly directed bead engagable with said retainer to firmly seat the retainer in the dam.

Claim 6

Dependent Claim 54 words

A nurser assembly as claimed in claim 1 including a pusher element having a circumferential extension engageable over the tip of the nipple and wherein said scoring includes arcuate scoring and wherein the diameter of said cylindrical extension is less than the diameter of the arcuate scoring defining said detachable portion of the dam.

Claim 7

Dependent Claim 44 words

A nurser assembly as claimed in claim 1 including a pusher element having a cylindrical extension circumscribing the tip portion of the nipple and a shield having a portion engagable to actuate the same, said portion having a plurality of protruberances defining air passages.

Claim 8

Dependent Claim 32 words

A nurser assembly as claimed in claim 1 wherein said means for actuating said detachable portion of said dam member comprises a pusher element engageable over the tip portion of the nipple.

Claim 9

Dependent Claim 66 words

A nurser assembly as claimed in claim 7 wherein said pusher element includes a generally cylindrical section snugly embracing the tip portion of the nipple and including a shield spaced radially outwardly of the cylindrical section having a lower terminal edge portion engageable with the retainer to limit downward displacement of said pusher element upon actuation thereof to engage the detachable portion of said dam member.

Claim 10

Dependent Claim 44 words

A nurser assembly aS claimed in claim 1 wherein said scoring includes spaced arcuate portions lying on the circumference of a common circle defining outer edge portions of the leaf sections, said arcuate portions being circumferentially spaced to define diametrically opposed first hinge connections.

Claim 11

Dependent Claim 126 words

A nurser assembly for mounting over the opening in a container comprising a dam member spanning the opening and having a detachable portion providing an access opening for discharge of contents of the container, a nipple having a tip portion, means supporting the nipple in a position overlying said dam member, a pusher element having a generally cylindrical section snuggly embracing the tip portion of the nipple, a portion of the nipple engaging the outer peripheral surface of said cylindrical extension when the pusher element is partially seated, means defining channel means on said cylindrical extension providing a flow path between said nipple and cylindrical section of said pusher element facilitating flow of a sterilizing medium to internal portions of the elements of the nurser assembly.

Claim 12

Dependent Claim 126 words

A nurser assembly for mounting over the opening in a container comprising a dam member spanning the opening and having a detachable portion providing an access opening for discharge of contents of the container, a nipple having a tip portion, means supporting the nipple in a position overlying said dam member, a pusher element having a generally cylindrical section snuggly embracing the tip portion of the nipple, a portion of the nipple engaging the outer peripheral surface of said cylindrical extension when the pusher element is partially seated, means defining channel means on said cylindrical extension providing a flow path between said nipple and cylindrical section of said pusher element facilitating flow of a sterilizing medium to internal portions of the elements of the nurser assembly.

Claim 13

Dependent Claim 38 words

A nurser assembly as claimed in claim 10 wherein said pusher element includes a bead on the interior surface thereof engagable with said nipple and operable to grip the same when it is raised to an erect position.

Claim 14

Dependent Claim 39 words

A nurser assembly as claimed in claim 10 wherein the lower end of said cylindrical section is provided with circumferentially spaced extensions defining slots therebetween communicating with the channels formed on opposite sides of sidewalls of said cylindrical extension.

Claim 15

Dependent Claim 43 words

A nurser assembly as claimed in claim 10 wherein said pusher element includes a shield spaced radially outwardly from the cylindrical inner section and overlying the nipple in the assembled relation to protect the same against contact by the hand of the user.

Claim 16

Dependent Claim 51 words

A nurser assembly as claimed in claim 13 wherein said shield has at least one internal rib which projects beyond the lower peripheral edge of said shield and is engageable with said retainer to limit downward displacement of said cylindrical extension when the pusher element is actuated to fracture said scoring.

Claim 17

Dependent Claim 164 words

A nurser assembly for mounting over the opening in a container comprising a dam member spanning the opening and having a portion at least partially detachable to provide an access opening for discharge of contents of the container, a retainer, including an inner circumferential surface, secured to said dam member, a nipple including an annular base portion mounted in said retainer in overlying relation on said dam member, said base also including a circumferential surface normally in sealing relation with said circumferential surface of said retainer to prevent ingress of ambient air to said container, and an air passageway between said base portion and the inner circumferential surface of said retainer to permit ingress of air upon actuation of the nipple, a second air passageway between said base and said dam connecting said first passageway with the interior of said container, whereby displacement of said base circumferential surface upon actuation of the nipple permits ambient air to flow through said passageways to said container.

Claim 18

Dependent Claim 164 words

A nurser assembly for mounting over the opening in a container comprising a dam member spanning the opening and having a portion at least partially detachable to provide an access opening for discharge of contents of the container, a retainer, including an inner circumferential surface, secured to said dam member, a nipple including an annular base portion mounted in said retainer in overlying relation on said dam member, said base also including a circumferential surface normally in sealing relation with said circumferential surface of said retainer to prevent ingress of ambient air to said container, and an air passageway between said base portion and the inner circumferential surface of said retainer to permit ingress of air upon actuation of the nipple, a second air passageway between said base and said dam connecting said first passageway with the interior of said container, whereby displacement of said base circumferential surface upon actuation of the nipple permits ambient air to flow through said passageways to said container.

Claim 19

Dependent Claim 82 words

A nurser assembly as claimed in claim 15 including a pusher element engageable over the tip portion of said nipple having a portion overlying said detachable portion of said dam member operable upon actuation to pivot said leaf sections about the hinge connections, said pusher element including means engageable with the base portion of the nipple operable to effect at least local displacement of said confronting sealing surfaces of said retainer and nipple to establish fluid communication between said air passageway means.

Claim 20

Dependent Claim 147 words

A nurser assembly as claimed in claim 15 wherein said retainer is of inverted U-shaped cross section and includes an annular top and inner and outer radially spaced depending skirt members, the inner skirt member engagable with the locking portion of said nipple and having at least one slot in its lower terminal edge defining an air flow passage and wherein the base portion of the nipple includes a circumferentially extending radial shoulder overlying the annular top of said retainer and the lower axial end face of the base portion seats on a wall portion of said dam member radially outwardly of said scoring, the annular top being provided with a plurality of radially directed ribs defining with said shoulder radial air passages and the wall portion of said dam member having grooves formed therein defining with the axial end face of said base portion radial passages.

Claim 21

Dependent Claim 126 words

A nurser assembly for mounting over the opening in a container comprising a dam member spanning the opening and having a partially detachable portion providing an access opening for discharge of contents of the container, a nipple, means supporting the nipple in a position overlying said dam member, said detachable portion being defined by a scoring configuration providing at least two leaf sections, each leaf section pivotal about its own first hinge, a common second hinge connecting said leaf sections, means for actuating said detachable portion whereby said leaf sections pivot about said first and common hinge connections and pivotal displacement thereof is limited by said common hinge connection and an overcap enclosing and sealing said dam member and nipple over the opening in the container.

Claim 22

Dependent Claim 126 words

A nurser assembly for mounting over the opening in a container comprising a dam member spanning the opening and having a partially detachable portion providing an access opening for discharge of contents of the container, a nipple, means supporting the nipple in a position overlying said dam member, said detachable portion being defined by a scoring configuration providing at least two leaf sections, each leaf section pivotal about its own first hinge, a common second hinge connecting said leaf sections, means for actuating said detachable portion whereby said leaf sections pivot about said first and common hinge connections and pivotal displacement thereof is limited by said common hinge connection and an overcap enclosing and sealing said dam member and nipple over the opening in the container.

Claim 23

Dependent Claim 23 words

A nurser assembly as claimed in claim 18 wherein the overcap has a stepped dome section to facilitate handling in automatic assembly equipment.

Claim 24

Dependent Claim 97 words

In a nurser assembly including a nipple adapted to be mounted over the discharge opening in a container, a dam member spanning the discharge opening and having a partially detachable portion providing an access opening for discharge of contents of the container, said detachable portion being defined by a scoring configuration providing at least two leaf sections, each leaf section pivotal about its own first hinge, a common second hinge connecting said leaf sections, said leaf sections being pivotal about said first and common hinge connections and pivotal displacement thereof being limited by said common hinge connection.

Claim 25

Dependent Claim 97 words

In a nurser assembly including a nipple adapted to be mounted over the discharge opening in a container, a dam member spanning the discharge opening and having a partially detachable portion providing an access opening for discharge of contents of the container, said detachable portion being defined by a scoring configuration providing at least two leaf sections, each leaf section pivotal about its own first hinge, a common second hinge connecting said leaf sections, said leaf sections being pivotal about said first and common hinge connections and pivotal displacement thereof being limited by said common hinge connection.

Claim 26

Dependent Claim 44 words

A dam member as claimed in claim 20 wherein said scoring includes spaced arcuate portions lying on the circumference of a common circle defining outer edge portions of the leaf sections, said arcuate portions being circumferentially spaced to define diametrically opposed first hinge connections.

Claim 27

Dependent Claim 26 words

A dam member as claimed in claim 21 wherein said common hinge connection is disposed adjacent the center of the circle defined by said arcuate scoring.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1978-09-01	1979-03-03	1979-09-02	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1982-09-01	1983-03-03	1983-09-02	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1986-09-01	1987-03-03	1987-09-02	$7700.00	Window Closed / Lapsed

Primary nurser assembly

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