摘要:
A window or door assembly having a secondary sash hinged to a prime sash and movable between a closed position and an open position toward an interior region. The prime sash is coupled to a frame. A compressible member biases the secondary sash toward the open position. A latch assembly is provided including a plurality of retractable latching elements each biased to an extended position to retain the secondary sash in the closed position. The latch assembly includes a sliding operator accessible from the interior region and slidable along an edge of the secondary sash to sequentially displace the retractable latching elements to a retracted position sufficient for the compressible member to move the secondary sash toward the open position. The present invention is also directed to a method of operating the latch assembly.
摘要:
Couplers for attaching an accessory to an excavator arm of an excavator. Couplers having a first side for attaching the coupler to the excavator arm and a second side onto which the accessory will be coupled. The coupler includes a latch for selectively securing and releasing an attachment pin of the accessory in a jaw, groove, hook or slot in the second side of the coupler. The coupler is fully controllable from within the cab of the excavator and it allows improved security in the securement of the accessory to the coupler, i.e. preventing accidental decouplings, but while still allowing intentional decoupling operations to be carried out without undue burden.
摘要:
A non-removable safety pin (20) for an excavator coupler for securing a latching hook thereof. The safety pin (20) comprises a head (26), a shaft (24), a distal end (22) and a longitudinal axis starting at the head (26), extending along the shaft (24) and terminating at the distal end (22), wherein either or both of the shaft (24) and the distal end (22) are keyed so as to have an element thereon that extends relative to a side of the shaft. The element prevents removal of the safety pin from a hole (36) in which the safety pin (20) is inserted.
摘要:
A SFP checking device (SFP Check) connects to a SFP transceiver and a PC or laptop via a USB cable. The SFP Check uses the default web browser of the PC, without an internet connection, to display details of the SFP transceiver such as wavelength, description, range, manufacturer, among other information, in accordance with program code provided to the PC via the SFP Check. All of the information a technician in the field needs to determine which SFP transceiver is the right one for a selected application and optical link is available from the SFP Check. The SFP Check and SFP transceiver both receive power via the USB cable connection to the PC. The SFP Check appears to the PC as a memory stick. A method is provided for determining the drive letter associated with the SFP Check and the program coder or file(s) it provides to the PC.
摘要:
A coupler comprising two jaws and a latch for each jaw, one of the latches being powered for movement between a latching position and a non-latching position, and being associated with a blocking mechanism that is remotely movable between a blocking position and non blocking position, and the other latch being independent of the blocking mechanism, but being also remotely moveable between a latching position and a non-latching position, wherein the powered latch, in its non-latching position, can maintain both the blocking mechanism in its non blocking position and the other latch in its non-latching position, irrespective of the orientation of the coupler.
摘要:
An OC3 to three DS3 SONET multiplexer is provided employing a field programmable gate array and other components in a single Type 400 mechanics card to achieve a form factor that is substantially reduced when compared to existing SONET multiplexers. The OC3 to three DS3 SONET multiplexer has integral optical redundancy and automated provisioning. Manual switches are provided to select continue/drop and line build out for each DS3. Switches are also provided for loopback options. The face plate for the multiplexer provides front access to all of the OC3 and DS3 connectors. The multiplexer is interchangeable with DS3 to DS1 multiplexer cards and WDM cards in a compact M13 SONET enclosure that is particularly useful at wireless cell sites.
摘要:
An excavator coupler that is either attached to, or for attachment to, an excavator arm of a digger for connecting an attachment, such as a bucket, to the excavator arm of the digger, the attachment having at least one bucket or coupler pin, wherein the coupler comprises a jaw for engaging that pin, the jaw comprising an interior space for the pin, and lips that partially occlude the interior space so as to provide a profile for the jaw that has a widened interior relative to either the gap between the lips or the opening of the jaw, if narrower, one lip being provided on an upper wall of the jaw and the other lip being provided on a lower wall of the jaw.
摘要:
A non-removable safety pin (20) for an excavator coupler for securing a latching hook thereof. The safety pin (20) comprises a head (26), a shaft (24), a distal end (22) and a longitudinal axis starting at the head (26), extending along the shaft (24) and terminating at the distal end (22), wherein either or both of the shaft (24) and the distal end (22) are keyed so as to have an element thereon that extends relative to a side of the shaft. The element prevents removal of the safety pin from a hole (36) in which the safety pin (20) is inserted.
摘要:
A reduced size multiplexer and, in particular, a reduced size SONET multiplexer module is provided for use in a reduced size enclosure. The SONET multiplexer module has electrical and optical connectors on its faceplate to provide ease in access without having to remove the SONET multiplexer from the enclosure. The SONET multiplexer circuit is configured in a standard Type 400 mechanics circuit board arrangement. The SONET multiplexer module therefore can be inserted into an enclosure in a direction opposite to that in which the coaxial connector projects from the face plate, so that the coaxial connector remains freely accessible outside of the enclosure when the SONET multiplexer module is fully loaded into the enclosure. Coaxial cables and optical fibers can thus be easily coupled to the coaxial and optical connectors, respectively, when the SONET multiplexer circuit is fully loaded into the enclosure.
摘要:
An ablating device has a cover which holds an interface material such as a gel. The cover contains the interface material during initial placement of the device. The ablating device may also have a removable tip or a membrane filled with fluid. In still another aspect, the ablating device may be submerged in liquid during operation.