Abstract: A filter includes a housing with multiple flow passages and filter elements, including at least first and second flow passages therethrough including respective first and second filter elements in parallel. Respective internal dividing walls separate flow passages in space saving relation.

Abstract: A filter element for mounting in a filter housing has a support frame for supporting filter media and a seal integrally formed with the support frame for sealing against the filter housing.

Abstract: An interface assembly for interconnecting respective housings and output and input drive shafts of a power plant and a vacuum blower by hard mounting, the interface assembly including: an adapter plate secured to a housing of the power plant in rigid and rotationally fixed contact therewith at an output drive shaft thereof; a rigid metal casting interfaced to the adapter plate on the power plant in rigid and rotationally fixed contact therewith, the rigid metal casting further interfaced to a housing of the vacuum blower in rigid and rotationally fixed contact therewith at an input drive shaft thereof; and a rigid coupler assembly interfaced in rigid and rotationally fixed contact to each of the output and input drive shafts for transferring power from the power plant output drive shaft to the vacuum blower input drive shaft.

Abstract: An apparatus for perforating a sheet of media includes a perforation forming mechanism including at least one perforation device. The perforation forming mechanism is configured to drive the perforation device through the sheet of media to extend through the sheet of media by a distance.

Abstract: A filter includes a filter element formed of filter media, and a plastic framework molded and bonded to and structurally supporting the filter media. One embodiment desirably provides a two-component assembly consisting solely of two components, namely the filter media and the plastic framework molded thereon. In a further embodiment, the plastic framework includes a resilient seal integrally molded therewith and of the same plastic material thereof, eliminating a separate component for the seal. In a further embodiment, a filter combination includes a primary filter element and a secondary filter element. In a further embodiment, a resilient integrally. molded seal is provided.

Abstract: A filter element support tube has a pair of axially extending spines and first and second sets of oppositely laterally extending half-rings axially offset from each other. The support tube is efficiently manufacturable, and desirably provides a constant diameter along its axial length.

Abstract: A filter is provided by a panel filter element having a perimeter gasket having sealing planes axially between inlet and outlet axial ends of the panel filter element and having a merge point with the panel filter element axially between the sealing planes.

Abstract: A filter includes a filter element mounted to a base and having first and second end caps spaced axially along an axis. Fluid to be filtered flows laterally through the filter element and axially through a hollow interior and through an axial flow opening of the second end cap. The filter element is mounted to the base solely by the second end cap in rotational relationship independently of the first end cap, eliminating the third component traditionally needed for mounting a housing cover to the base and enclosing and/or sealing and/or retaining the filter element in the housing.

Abstract: A filter element for mounting in a filter housing has a support frame for supporting filter media and a seal integrally formed with the support frame for sealing against the filter housing.

Abstract: A resonator includes an inner perforated tube, an outer shell, and a plurality of annular ribs extending radially therebetween and defining resonant chambers. Progressive stepping of ribs and grooves enables axial insertion assembly with minimal cost. The need for welding or secondary bonding operations is eliminated.

Abstract: A personal communications earpiece (10, 10a, 10b) for use with a personal communications device such as a telephone (50). The personal communications earpiece (10, 10a, 10b) has an ear hook (12) for placing over an ear (60) of the user. An ear bud (14, 14a) containing a speaker (27) is both physically and electrically connected to the ear hook (12) by a flexible connector (16). A front portion (22) of the ear hook (12) extends generally downward in front of the ear (60). In one embodiment, the ear bud (14) has an in ear portion (28) with a plurality of grooves (30) therein for assisting in preventing the ear bud (14) from completely blocking or occluding the ear canal of the user.

Abstract: A filter includes a filter element mounted to a base and having first and second end caps spaced axially along an axis. Fluid to be filtered flows laterally through the filter element and axially through a hollow interior and through an axial flow opening of the second end cap. The filter element is mounted to the base solely by the second end cap independently of the first end cap, eliminating the need for a third component traditionally needed for mounting a housing cover to the base and enclosing and/or sealing and/or retaining the filter element in the housing.

Abstract: The drywall measuring tape is a tape measure extendably contained within a housing, including a laser light source, such as a laser diode, located on each side of the housing. Each laser light source projects a focused light beam perpendicular to the extended tape measure, and in a plane parallel to the housing base. Thus, when the tape measure is extended across a wall with the housing base flush against the wall, one of the laser light sources projects a reference spot onto the ceiling, while the other projects onto the floor. This allows a measurement to be taken horizontally across a wall in reference to a point on the ceiling or floor. Additionally, the drywall measuring tape includes a T-square bracket on the housing base, disposed so that the drywall measuring tape can be quickly aligned with a surface edge for measurement perpendicular to the surface edge.

Abstract: A filter includes first and second axially spaced end caps having filter media extending axially between the end caps and extending in a closed-loop around a perimeter defining a hollow interior communicating with an axial flow opening through one of the end caps. One or more columns extend axially in the hollow interior between the end caps and are laterally spaced from the axial flow opening and have hollow sub-interiors for receiving one or more posts extending axially thereinto from a base for mounting the filter to the base in axial compression and with a wiper seal.

Abstract: An interface assembly for interconnecting respective housings and output and input drive shafts of a power plant and a vacuum blower by hard mounting, the interface assembly including: an adapter plate secured to a housing of the power plant in rigid and rotationally fixed contact therewith at an output drive shaft thereof; a rigid metal casting interfaced to the adapter plate on the power plant in rigid and rotationally fixed contact therewith, the rigid metal casting further interfaced to a housing of the vacuum blower in rigid and rotationally fixed contact therewith at an input drive shaft thereof, and a rigid coupler assembly interfaced in rigid and rotationally fixed contact to each of the output and input drive shafts for transferring power from the power plant output drive shaft to the vacuum blower input drive shaft.

Abstract: Described is a portable cradle which includes a removable planar surface, a base and a plurality of vertical support members removably coupled to the base and supporting the planar surface above the base. Each vertical support member includes a biasing member urging the planar member upward away from the base with a total biasing force applied to the planar member being selected based on property of materials to be supported on the planar surface so that a position of an upper surface of the supported materials remains substantially constant as a quantity of materials supported on the planar surface is changed.

Abstract: A damping mechanism for use with a housing having a body and a cover pivotably attached to the body, the cover being movable between an open position and a closed position. The damping mechanism includes a body engagement surface located on the body and a cover engagement surface located on the cover. One of the body engagement surface or the cover engagement surface includes a generally planar damping pad and the other of the body engagement surface or the cover engagement surface includes a cam having a generally curved cam surface. The cam surface is shaped and positioned to engage the damping pad such that the damping pad and the cam cooperate to damp the movement of the cover when the cover pivots between the open and closed positions.

Abstract: An imaging apparatus includes a first side frame and a second side frame, the second side frame being spaced apart from the first side frame. A guide rail extends between the first side frame and the second side frame. A guide rod having a first end, a second end and an axis is provided that extends between the first side frame and the second side frame, the guide rod being positioned to be substantially parallel to the guide rail. A printhead carrier that carries a printhead has a slotted portion for slideably engaging the guide rail and has a bearing for slideably engaging the guide rod. A first eccentric bushing assembly is provided for movably mounting the first end of the guide rod to the first side frame. A second eccentric bushing assembly is provided for movably mounting the second end of the guide rod to the second side frame.