Bottle cap

Claim 2

In a bottle cap for use with a bottle having a threaded neck opening into the bottle, said cap being constructed of flexible material and having a top wall, a cylindrical side wall depending from the top wall and a thread on the inner surface of the side wall for cooperating with the thread on the neck of the bottle, the improvement comprising: a. a first annular sealing surface extending downwardly from said top wall and toward said side wall at an acute angle relative thereto for engagement with the outside wall surface of the bottle neck adjacent its opening into the bottle, said cap being of solid construction from the first sealing surface radially outward to the side wall; b. a second annular sealing surface extending downwardly from said top wall inwardly of said first sealing surface for engagement with the top surface of the bottle neck, said second sealing surface normally extending away from the side wall of the cap at an acute angle relative to the top wall with the cap being of solid construction between second sealing surface and the top wall; c. said first and second sealing surfaces being spaced from each other to seal against the cooperating surfaces of the bottle neck at spaced zones; and d. said cap being of sufficient flexibility to flex as the second sealing surface engages the top surface of the bottle neck to permit pivoting of said first and second sealing surfaces into flush sealing contact with the top and outside surface of the bottle neck.

Claim 3

The improvement in the bottle cap as set forth in claim 1 wherein: a. said first sealing surface extends toward said side wall at an angle of about 10* relative thereto.

Claim 4

The improvement in the bottle cap as set forth in claim 2 wherein: a. said first sealing surface is disposed radially inward of the thread on the side wall of the cap.

Claim 5

The improvement in the bottle cap as set forth in claim 3 wherein: a. the thread on the side wall of the cap terminates at a point spaced from said top wall and below said first sealing surface.

Claim 6

The improvement in the bottle cap as set forth in claim 2 wherein: a. said first and second sealing surfaces are flat surfaces which intersect each other adjacent the top wall of the cap.

Claim 7

The improvement in the bottle cap as set forth in claim 5 wherein: a. the angle of intersection of the first and second sealing surfaces is about 80*.

Claim 8

In a bottle cap for use with a bottle having a threaded neck opening into the bottle, said cap being constructed of flexible material and having a top wall, a cylindrical side wall depending from the top wall and a thread on the inner surface of the side wall for cooperating with the thread on the neck of the bottle, the improvement comprising: a a first flat annular sealing surface extending downwardly from said top wall and toward said side wall at an acute angle relative thereto for engagement with the outside wall surface of the bottle neck adjacent its opening into the bottle; b a second flat annular sealing surface extending downwardly from said top wall inwardly of said first sealing surface for engagement with the top surface of the bottle neck: 1 said second sealing surface normally extending away from the side wall of the cap at an acute angle relative to said top wall, 2 said second sealing surface intersecting the first sealing surface adjacent the top wall of the cap, and 3 said second sealing surface providing a stop for engaging against the top surface of the bottle to limit tightening of the cap on the bottle; c the cap is of solid construction between the second sealing surface and the top wall; and d said cap top wall is of sufficient flexibility to flex as the second sealing surface engages the top surface of the bottle neck to permit pivoting of said second sealing surface into flush sealing contact with the top surfaces of the bottle neck.

Claim 9

In a bottle cap for use with a bottle having a threaded neck opening into the bottle, said cap being constructed of flexible material and having a top wall, a cylindrical side wall depending from the top wall and a thread on the inner surface of the side wall for cooperating with the thread on the neck of the bottle, the improvement comprising: a a first flat annular sealing surface extending downwardly from said top wall and toward said side wall at an acute angle relative thereto for engagement with the outside wall surface of the bottle neck adjacent its opening into the bottle; b a second flat annular sealing surface extending downwardly from said top wall inwardly of said first sealing surface for engagement with the top surface of the bottle neck: 1 said second sealing surface normally extending away from the side wall of the cap at an acute angle relative to said top wall, 2 said second sealing surface intersecting the first sealing surface adjacent the top wall of the cap, and 3 said second sealing surface providing a stop for engaging against the top surface of the bottle to limit tightening of the cap on the bottle; c the cap is of solid construction between the second sealing surface and the top wall; and d said cap top wall is of sufficient flexibility to flex as the second sealing surface engages the top surface of the bottle neck to permit pivoting of said second sealing surface into flush sealing contact with the top surfaces of the bottle neck.

Claim 10

The improvement in the bottle cap as set forth in claim 7 wherein: a said first and second sealing surfaces are spaced from each other to seal against the cooperating surfaces of the bottle neck at spaced zones.

Claim 11

The improvement in the bottle cap as set forth in claim 7 further including: a. a third annular sealing surface extending downwardly from the top wall radially inward of said second sealing surface and facing said side wall for engagement with the inner surface of the bottle neck at its opening into the bottle.

Claim 12

The improvement in the bottle cap as set forth in claim 9 wherein: a. said third sealing surface is spaced from said second sealing surface to seal against the bottle neck independently of said second sealing surface.

Claim 13

The improvement in the bottle cap as set forth in claim 7 further including: a. an annular ratchet ring removably secured at the bottom of the side wall of the cap for cooperating with aligned ratchet teeth on the bottle neck to prevent turning of the cap in an unthreading direction prior to removal of said ring.

Claim 14

In a bottle cap for use with a bottle having a threaded neck opening into the bottle, said cap being constructed of flexible material and having a top wall, a cylindrical side wall depending from the top wall and a thread on the inner surface of the side wall for cooperating with the thread on the neck of the bottle, the improvement comprising: a. a first flat annular sealing surface disposed radially inward of the thread on the side wall of the cap and at a point spaced above said thread and extending downwardly from said top wall and toward said side wall at an acute angle relative thereto for engagement with the outside wall surface of the bottle neck adjacent its opening into the bottle, said cap being of solid construction from the first sealing surface radially outward to the side wall; b. a second flat annular sealing surface extending downwardly from said top wall inwardly of said first sealing surface for engagement with the top surface of the bottle neck, said second sealing surface normally extending away from the side wall of the cap at an acute angle relative to the top wall and intersecting the first sealing surface adjacent the top wall of the cap with the cap being of solid construction between second sealing surface and the top wall; and c. said cap being of sufficient flexibility to flex as the second sealing surface engages the top surface of the bottle neck to permit pivoting of said first and second sealing surfaces into flush sealing contact with the top and outside surface of the bottle neck, said second sealing surface being spaced from the first sealing surface to seal against the bottle neck at a zone spaced from the zone at which the first sealing zone engages the outside wall surface of the bottle neck.

Claim 15

In a bottle cap for use with a bottle having a threaded neck opening into the bottle, said cap being constructed of flexible material and having a top wall, a cylindrical side wall depending from the top wall and a thread on the inner surface of the side wall for cooperating with the thread on the neck of the bottle, the improvement comprising: a. a first flat annular sealing surface disposed radially inward of the thread on the side wall of the cap and at a point spaced above said thread and extending downwardly from said top wall and toward said side wall at an acute angle relative thereto for engagement with the outside wall surface of the bottle neck adjacent its opening into the bottle, said cap being of solid construction from the first sealing surface radially outward to the side wall; b. a second flat annular sealing surface extending downwardly from said top wall inwardly of said first sealing surface for engagement with the top surface of the bottle neck, said second sealing surface normally extending away from the side wall of the cap at an acute angle relative to the top wall and intersecting the first sealing surface adjacent the top wall of the cap with the cap being of solid construction between second sealing surface and the top wall; and c. said cap being of sufficient flexibility to flex as the second sealing surface engages the top surface of the bottle neck to permit pivoting of said first and second sealing surfaces into flush sealing contact with the top and outside surface of the bottle neck, said second sealing surface being spaced from the first sealing surface to seal against the bottle neck at a zone spaced from the zone at which the first sealing zone engages the outside wall surface of the bottle neck.

Claim 16

The improvement in the bottle cap as set forth in claim 12 further including: a. a third annular sealing surface extending downwardly from the top wall radially inward of said second sealing surface and facing said side wall for engagement with the inner surface of the bottle neck at its opening into the bottle, said third sealing surface being spaced from said second sealing surface to seal against the bottle neck independently of said second sealing surface; and b. an annular ratchet ring removably secured at the bottom of the side wall of the cap for cooperating with aligned ratchet teeth on the bottle neck to prevent turning of the cap in an unthreading direction prior to removal of said ring.