Abstract: A filter cartridge (400) with a first end cap (420) comprising a rigid adaptor ring (430) and a seal structure (480). The adaptor ring (430) includes a shelf (440) on which the first axial edge (413) of filtering media (410) sits and a clip (450) situated radially and axially outward from the filtering media (410). The seal structure (480) encapsulates the shelf (440) and a first end portion (415) of the filter media (410). The clip (450) is not encapsulated by the seal structure (480) whereby it is available for insertion into a housing channel.

Abstract: A filter cartridge (400) with a first end cap (420) comprising a rigid adaptor ring (430) and a seal structure (480). The adaptor ring (430) includes a shelf (440) on which the first axial edge (413) of filtering media (410) sits and a clip (450) situated radially and axially outward from the filtering media (410). The seal structure (480) encapsulates the shelf (440) and a first end portion (415) of the filter media (410). The clip (450) is not encapsulated by the seal structure (480) whereby it is available for insertion into a housing channel.

Abstract: An air filter assembly including abutting, cylindrical housing halves, with toothed outer ends, joined via spaced, T-shaped appendages; a cylindrical air inlet of abutting semi-cylindrical housing inlet portions; a primary filter pack, for slip-fit insertion into either housing half, having an end cap integral with a cylindrical primary filter pack having sealing material on its inner end; a filter outlet end with a toothed peripheral portion, for slip-fit insertion into and angular adjustment relative to either housing end, and a plurality of ribs defining locating surfaces for an air outlet portion, and main and safety filters; the latter having a truncated cone body and an inverted conical portion; and a filter attachment base having curved bed portions, for receiving a housing periphery portion, including spaced support pads and slot portions for angularly adjustably receiving like numbers of T-shaped appendages, with a locking mechanism joining the housing and attachment base.

Abstract: An adjustable chair arm attachable to a chair body. The arm is capable of being moved horizontally, toward and away from the chair seat, and vertically with respect to the seat. The adjustable arm includes an arm frame assembly having a generally vertical section. The adjustable arm also includes an arm body having an upper housing and a sleeve portion which is slidably mounted on the generally vertical section of the arm frame assembly for vertical adjustment of the chair arm. A latching assembly is connected to the frame assembly and arm body for releasably locking the arm body in a plurality of vertical positions on the frame assembly. Lastly, an actuator, integral with the latching assembly, is provided for disabling the latching assembly.