An example door closer includes a casing and a pinion rotatably mounted to the casing. The pinion is operable to rotate through a plurality of movement zones, and the door closer is configured to exert forces on the pinion as the pinion moves through the plurality of movement zones. The door closer further includes a plurality of adjustment mechanisms, each operable to adjust the force exerted on the pinion as the pinion travels through a corresponding movement zone. The casing is provided with indicia that correlate each of the adjustment mechanisms to the corresponding movement zone.

A door actuator linkage includes a lever extending along a longitudinal axis, which merges into a linkage head with an offset, wherein the linkage head is formed for rotationally fixed mounting on an output shaft of a door actuator, wherein a free space for cable routing is formed by the offset. The free space is delimited by the linkage head and by an offset surface of the lever, wherein the lever protrudes up to an imaginary boundary surface, which is defined perpendicular to the longitudinal axis. The offset surface is withdrawn partially from this boundary surface in order to expand the free space.

A lid stay formed from a housing slidably coupled to a base. The housing has a coupler section for securing said housing to a fixed object, and a connector section for securing the housing to the base. The base is formed from a cylindrical shaped tube defining an interior chamber, having an insertion section constructed and arranged to slidably receive said housing, but prevent the connector section of the housing from passing therethrough. An expanded coil spring is positioned within the interior chamber to maintain the housing and base in an expanded position. The lid stay is for use with a storage container base having a lid pivotally attached thereto. The lid stay biases the lid in an open position and provides resistance when closing the lid.

A door closer system that comprises a left post, a right post, a top frame and a bottom fame all connected to each other, wherein the left post, the right post, the top frame and the bottom frame are configured to hold a door, wherein the bottom frame includes a first adjustable multi-sizing spring force and a second adjustable multi-sizing spring fore, where the first adjustable multi-sizing spring force and the second adjustable multi-sizing spring force are configured to allow control of the door, where the door may have a plurality of weights and sizes. The bottom frame includes a custom hinge with a special closer, wherein the special closer is configured to pivot to swing into a bearing at the top frame and the bottom frame to allow free and easy ADA movement. The special closer includes a check valve allowing the door to return to a center closed position.

A modular channel for a door including an elongated channel forming at least a portion of an internal frame for the door. The elongated channel has opposing sides and a base member extending between one edge of each side. The modular channel includes a pair of parallel slotted openings along the base member and a channel adapter including a tabs corresponding with the pair of slotted openings. The tabs include a locking protrusion extending from tab. The tabs slidably engage the slotted openings and the locking protrusions engage the slotted openings when the tabs are urged fully into the slotted opening. The slotted openings may be positioned parallel with the elongated channel length and the elongated channel may include at least one transverse slot perpendicular to the slotted openings. The channel adapter may include a curved locking tongue disposed perpendicular to the tabs and engagable with the transverse slot.

A power boost assembly is disclosed that can be used with a door actuator, such as a door closer. The power boost assembly is structured to store an energy during a first movement of a door and release the stored energy during a second movement of the door. In one form the power boost assembly can be structured as a module that can be added to an existing door and door closer installation. In one form the power boost assembly is used to increase a closing force imparted to a door to ensure a latching event.

A door closer having a closer body 1 housing an electrical actuator 20 connected to one or more electrical connectors, such as plugs 24, each of which may be located in two or more different positions on the closer body to facilitate connection of the closer to an electrical circuit when the closer is mounted in different orientations, without providing a greater number of electrical connectors. The closer body may have a rotary shaft 7 connected to a door control arm 9, a first latch member 6 mounted relative to the closer body and a second latch member 29 mounted relative to the rotary shaft, the second latch member being arranged to engage with the first latch member to arrest rotation of the rotary shaft to latch the rotary shaft in a desired position. A mounting structure 8 connects the control arm and enables the angle between the control arm and the second latch member to be varied between 0 and at least 90 degrees.

A door driving mechanism for connecting a door operator (30) to a swing door leaf (14) is provided. The door driving mechanism comprises a guiding member (22) fixedly arranged to the door leaf (14); and a driving arm (24) at one end being rotationally driven by the door operator (30), wherein said driving arm (24) is slidably connected to the guiding member (22) at a fixed position in relation to the door leaf.

An ejecting device can eject a cover element movably mounted on a piece of furniture, in particular a folding door or folding/sliding door, from a closed position into an open position. The cover element can be moved at least in a first direction perpendicular to the closing plane, on which the cover element is arranged in the closed position, and in a second direction parallel to the closing plane. The ejecting device includes an energy accumulator, which is to be charged manually by a user, and an ejecting element, on which the energy accumulator acts. The energy accumulator can be charged by moving the cover element substantially in a direction parallel to the closing plane, preferably during an ongoing cover element opening process following the ejection process, particularly preferably immediately following the ejection process.

A door closer assembly for an entryway device having a position sensor that assists in determining the location of the door closer assembly, and thus the location of the associated entryway device, relative to at least an entryway. The position sensor can be coupled to, and/or part of, the door closer assembly. Information obtained by the position sensor may be used by one or processing devices of an access control system to determine whether the door closer assembly and/or the entryway device is at the closed location, among other locations, as well as the direction(s) of displacement of the entryway device. Such information may be utilized in calibrating other devices, as well as determining the occurrence of a number of events, including unauthorized displacement or holding of the entryway device. A timer may also be utilized to further evaluate the nature of the displacement of the entryway device.