Abstract: A seatback assembly having an integral generally “U” shaped head/neck rest within its seatback that can be configured to accommodate a variety of positions while in use and incorporated into the seatback when not in use. The seat assembly has a seatback attached to a lower seat having a support arch and an opening. A generally “U” shaped head/neck rest is disposed within and pivotally attached to the seatback opening by a pair of mounting bars. The pivotal mount allows an open position for use and a closed position that is integral with the seatback. The mounting bars can be slidably mounted to the seatback and have locking mechanisms. Other features can include an internal frame, a pivotal attachment between the lower seat and seatback and the support arch can be made of tube steel and have padding.

Abstract: An infant hearing test apparatus, primarily intended for use in the early detection of hearing problems of human infants in the birth to eighteen month age group, subjects an infant under test to two low intensity test sounds of an electronically filtered human voice in the frequency range of about 2000 to 4000 Hz. Of particular utility are the higher frequency sounds that are associated with the voice of a human female, for example a mother speaking a language dependent endearing term such as "Hi Baby", and a language independent sound to which the infant is sensitive, such as the sound of an infant crying. Both of these sounds are used to test the infant for body movement, for example head movement, with both sounds being reproduced at a relatively low intensity of about 46 dB and at a distance of about 12 inches from the infant.

Abstract: An infant hearing test apparatus, primarily intended for use in the early detection of hearing problems of human infants in the birth to eighteen month age group, subjects an infant under test to two low intensity test sounds of an electronically filtered human voice in the frequency range of about 2000 to 4000 Hz. Of particular utility are the higher frequency sounds that are associated with the voice of a human female, for example a mother speaking a language dependent endearing term such as "Hi Baby", and a language independent sound to which the infant is sensitive, such as the sound of an infant crying. Both of these sounds are used to test the infant for body movement, for example head movement, with both sounds being reproduced at a relatively low intensity of about 46 dB and at a distance of about 12 inches from the infant.