Mouthpiece for breath testing devices

Claim 2

A MOUTHPIECE STEM MEMBER FOR A BREATH TESTING DEVICE, COMPRISING A TUBULAR WALL CLOSED AT ONE END THEREOF, THE TUBULAR WALL BEING OPEN AT THE OTHER END THEREOF TO FORM A BREATH OUTLET OF THE STEM MEMBER, AN ENLARGEMENT PROVIDED ON THE TUBULAR WALL OUTWARDLY THEREOF AND SPACED FROM THE CLOSED END, THE STEM MEMBER BEING ADAPTED TO SUPPORT A MOUTHPIECE CUP MEMBER THEREON IN ENGAGEMENT WITH THE ENLARGEMENT AND IN A POSITION SURROUDING THE CLOSED END IN SPACED RELATION THERETO, AND MEANS DEFINING AT LEAST ONE APERTURE IN THE TUBULAR WALL INTERMEDIATE THE ENLARGEMENT AND THE CLOSED END, THE APERTURE FORMING A BREATH INLET OF THE STEM MEMBER.

Claim 3

The mouthpiece stem member according to claim 1, wherein the enlargement is located intermediate the ends of the tubular wall.

Claim 4

The mouthpiece stem member according to claim 1, whErein the enlargement provides an annular surface extending outwardly of the tubular wall and facing toward the closed end thereof, the annular surface lying in a plane normal to the axis of the tubular wall.

Claim 5

The mouthpiece stem member according to claim 3, wherein the outer diameter of the annular surface is greater than the axial length of the enlargement.

Claim 6

The mouthpiece stem member according to claim 1, wherein the aperture is adjacent the closed end of the tubular member.

Claim 7

A mouthpiece for a breath testing device comprising: an elongated hollow element having a first end portion terminating in a closed end, and a second end portion terminating in an open end, the hollow element thereby defining a passage having a blind end and an outlet, the first end portion being provided with aperture means proximate the closed end and communicating with the passage, the second end portion being adapted for connection to a breath testing device with the outlet of the passage in communication with an inlet of the testing device; and a receiver element carried by the hollow element at a position intermediate the end portions and comprising a wall portion surrounding and extending outwardly from the hollow element and in the direction of the closed end to surround the closed end in spaced relation thereto, the wall portion terminating beyond the closed end in a rim portion formed to surround the lips of a subject to be tested, with the rim portion in engagement with the face of the subject, whereby, when the rim portion is so engaged, breath expelled by the subject will enter the receiver element, alter direction to enter the passage by way of the aperture means, and exit from the outlet of the passage.

Claim 8

A mouthpiece for a breath testing device comprising: an elongated hollow element having a first end portion terminating in a closed end, and a second end portion terminating in an open end, the hollow element thereby defining a passage having a blind end and an outlet, the first end portion being provided with aperture means proximate the closed end and communicating with the passage, the second end portion being adapted for connection to a breath testing device with the outlet of the passage in communication with an inlet of the testing device; and a receiver element carried by the hollow element at a position intermediate the end portions and comprising a wall portion surrounding and extending outwardly from the hollow element and in the direction of the closed end to surround the closed end in spaced relation thereto, the wall portion terminating beyond the closed end in a rim portion formed to surround the lips of a subject to be tested, with the rim portion in engagement with the face of the subject, whereby, when the rim portion is so engaged, breath expelled by the subject will enter the receiver element, alter direction to enter the passage by way of the aperture means, and exit from the outlet of the passage.

Claim 9

The mouthpiece according to claim 6, wherein the first end portion and the wall portion are so dimensioned that the closed end is spaced inwardly of the receiver element from the rim portion a distance sufficient to discourage engagement of the first end portion by the lips and teeth of the subject, whereby to maintain the aperture means unobstructed.

Claim 10

The mouthpiece according to claim 6, wherein the aperture means is adjacent the closed end of the hollow element, and the wall portion and the first end portion cooperate to provide a moisture trap, the first end portion being so dimensioned that the aperture means is spaced from the moisture trap.

Claim 11

A mouthpiece for a breath testing device, comprising a cup element having a base wall and a lateral wall extending from the base wall, the lateral wall terminating in a rim portion formed to surround the lips of a subject to be tested, with the rim portion in engagement with the face of the subject, an outlet element extending outwardly of the cup element from the base wall and adapted for connection to an inlet of a breath testing device; a pedestal element extending inwardly of the cup element from the base wall and surrounded by the lateral wall in spaced relation thereto, the outlet element and the pedestal element being aligned with each other and cooperating to define a passage extending through the base wall, the outlet element being open at the end thereof opposite the base wall to form an outlet of the mouthpiece, the pedestal element being closed at the end thereof opposite the base wall, and means defining at least one aperture in the pedestal element adjacent the closed end thereof to form an inlet communicating with the passage, the closed end of the pedestal element being spaced inwardly of the cup element from the rim portion, whereby when the rim portion is engaged with the face of the subject and surrounding the lips thereof, breath expelled by the subject will enter the cup element, alter direction to enter the passage by way of the aperture, and exit from the outlet.

Claim 12

A mouthpiece for a breath testing device, comprising a cup element having a base wall and a lateral wall extending from the base wall, the lateral wall terminating in a rim portion formed to surround the lips of a subject to be tested, with the rim portion in engagement with the face of the subject, an outlet element extending outwardly of the cup element from the base wall and adapted for connection to an inlet of a breath testing device; a pedestal element extending inwardly of the cup element from the base wall and surrounded by the lateral wall in spaced relation thereto, the outlet element and the pedestal element being aligned with each other and cooperating to define a passage extending through the base wall, the outlet element being open at the end thereof opposite the base wall to form an outlet of the mouthpiece, the pedestal element being closed at the end thereof opposite the base wall, and means defining at least one aperture in the pedestal element adjacent the closed end thereof to form an inlet communicating with the passage, the closed end of the pedestal element being spaced inwardly of the cup element from the rim portion, whereby when the rim portion is engaged with the face of the subject and surrounding the lips thereof, breath expelled by the subject will enter the cup element, alter direction to enter the passage by way of the aperture, and exit from the outlet.

Claim 13

The mouthpiece according to claim 9, wherein the pedestal element and the lateral wall are so dimensioned that the closed end is spaced inwardly of the cup element from the rim portion a distance sufficient to discourage engAgement of the pedestal element by the lips and teeth of the subject, whereby to maintain the aperture means unobstructed.

Claim 14

The mouthpiece according to claim 9, wherein the lateral wall, the base wall and the pedestal element cooperate to provide a moisture trap, the aperture being spaced from the moisture trap.

Claim 15

A mouthpiece for a breath testing device, comprising: a receiver member and a stem member, the receiver member having a base wall having an outer surface and an inner surface and defining an opening centrally thereof, and a lateral wall extending out of the base wall at the inner surface thereof, the lateral wall terminating in a rim portion adapted to surround the lips of a subject to be tested, with the rim portion in engagement with the face of the subject; the stem member comprising an elongated wall having an inner surface defining a passage and an outer surface, the elongated wall having a first end portion terminating in a closed end, a second end portion terminating in an open end to form an outlet of the passage, the first end portion being provided with aperture means proximate the closed end and communicating with the passage to form an inlet thereof, the second end portion being adapted for connection to a breath testing device with the outlet of the passage in communication with an inlet of the testing device, and a central section comprising an outer enlargement of the wall and providing a shoulder extending outwardly relative to the first end portion and adjacent thereto, the outer surface of the elongated wall at the first end portion thereof being complementary to the opening defined by the base wall, whereby the first end portion is receivable in the opening to mount the receiver member on the stem member with the outer surface of the base wall in engagement with the shoulder, with the base wall surrounding the first end portion in close engagement therewith, and with the lateral wall of the receiver element surrounding the first end portion in spaced relation therewith, the lateral wall and the first end portion being so dimensioned that the closed end of the first end portion is spaced from and intermediate the base wall of the receiver member and the rim portion thereof when the receiver member is mounted on the stem member.

Claim 16

A mouthpiece for a breath testing device, comprising: a receiver member and a stem member, the receiver member having a base wall having an outer surface and an inner surface and defining an opening centrally thereof, and a lateral wall extending out of the base wall at the inner surface thereof, the lateral wall terminating in a rim portion adapted to surround the lips of a subject to be tested, with the rim portion in engagement with the face of the subject; the stem member comprising an elongated wall having an inner surface defining a passage and an outer surface, the elongated wall having a first end portion terminating in a closed end, a second end portion terminating in an open end to form an outlet of the passage, the first end portion being provided with aperture means proximate the closed end and communicating with the passage to form an inlet thereof, the second end portion being adapted for connection to a breath testing device with the outlet of the passage in communication with an inlet of the testing device, and a central section comprising an outer enlargement of the wall and providing a shoulder extending outwardly relative to the first end portion and adjacent thereto, the outer surface of the elongated wall at the first end portion thereof being complementary to the opening defined by the base wall, whereby the first end portion is receivable in the opening to mount the receiver member on the stem member with the outer surface of the base wall in engagement with the shoulder, with the base wall surrounding the first end portion in close engagement therewith, and with the lateral wall of the receiver element surrounding the first end portion in spaced relation therewith, the lateral wall and the first end portion being so dimensioned that the closed end of the first end portion is spaced from and intermediate the base wall of the receiver member and the rim portion thereof when the receiver member is mounted on the stem member.

Claim 17

The mouthpiece according to claim 12, wherein the lateral wall of the receiver member and the first end portion of the stem member are so dimensioned that the closed end is spaced from the rim portion a distance sufficient to discourage engagement of the first end portion by the lips and teeth of the subject when the receiver member is mounted on the stem member and the rim portion is engaged with the face of the subject, whereby to maintain the aperture means unobstructed.

Claim 18

The mouthpiece according to claim 12, wherein the shoulder of the stem member and the base wall of the receiver member substantially are coterminous when the receiver member is mounted on the stem member.

Claim 19

The mouthpiece according to claim 12, wherein the aperture means is adjacent the closed end of the first end portion.

Claim 20

The mouthpiece according to claim 12, wherein the lateral wall and the base wall of the receiver member and the first end portion of the stem member cooperate to provide a moisture trap when the receiver member is mounted on the stem member, the aperture means being spaced from the moisture trap.