Abstract: An inspection block is disclosed for use in inspection of biological matter in a container unit which has a chamber with transparent walls, the inspection block having a transverse docking passage for receiving and positioning a container unit, an observation chamber extending transversely relative to the docking passage and in communication therewith such that the biological matter located inside the container unit may be microscopically inspected through the chamber walls, transparent liquid for immersing at least part of the container unit so as to define a chamber wall/liquid optical interface for microscopic inspection therethrough. The inspection block may be made of steel, aluminum or plastic. In the latter case, the plastic inspection block may have closed cavities for containing insulating blocks and/or one or more downwardly opening air pockets retaining heat given off by a warmed work bench and/or warmed microscope stage on which the inspection block is supported during inspection.

Abstract: An actuator assembly is for a lock including a handle, a latch, a retractor for retracting the latch when the handle rotates, and a lock member displaceable between locked and unlocked positions, which either releasably couples the handle with the retractor or releasably prevents handle rotation. The actuator includes a motor having a shaft rotatable about an axis and a coupler spring disposed about the axis and having a first end coupled with the lock member and a second end. A drive member is coupled or integrally formed with the motor shaft and has a helical drive surface threadably engaged with the coupler spring second end, such that rotation of the shaft displaces the coupler spring along the axis to move the lock member between the locked and unlocked positions. Preferably, the drive member includes a spring coupled with the motor shaft and threadably engaged with the coupler spring.

Abstract: A deadbolt lock assembly comprising a retractable and extendable deadbolt, a housing, an outside member movably mounted on the housing, the member being normally disconnected from the deadbolt, and an operator input device on the housing, the device connecting the member to the deadbolt in response to presentation of an appropriate credential, such that a force applied to the member by the operator is mechanically transmitted to the deadbolt to move the deadbolt.

Abstract: An interface assembly is for an electronic device including a base and a control on the base and includes a contact on the base and coupled with the control and a data port spaced from the contact. A conductor is disposed between the data port and the contact such that data is transmissible between the data port and the contact through the conductor. The conductor is generally compressed or/and compressible between the data port and the contact and is formed of a conductive carbon material. The data port is spaced from the contact by a distance within a range of values, and the conductor provides a conductive path between the data port and the contact at each spacing distance value. A fluid impermeable cover is disposed over the base and covers the control and the contact to prevent moisture from contacting these components, with the conductor extending through the cover.

Abstract: A basement floor drain for use in basement waterproofing systems. The floor drain contains an upper chamber for collecting water, and an air resistant lower chamber to promote the establishment of a closed waterproofing system. A valve regulates flow of water from the upper chamber to the lower chamber. An outlet in the lower chamber may be fluidly connected to a basement sump to facilitate extraction of collected water. A basket may be included in a base of the upper chamber to protect the valve from clogging, and the basket may be removable to aid cleaning. The floor drain may be a modular assembly, multiple components of which may be coupled for customizable size and functionality.

Abstract: A lock system for a door. The lock system includes a clutch mechanism and a lockset with a lockable latch and actuator for operating the latch. The clutch mechanism includes an input cam, an output cam, and an engagement pin having an axis and being dimensioned and configured for axial movement between a first position, in which the engagement pin engages both the input and output cams so that the input and output cams rotate synchronously, and a second position, which allows independent rotational movement of the input cam and the output cam.

Abstract: A lock system for a door. The lock system includes a clutch mechanism and a lockset with a lockable latch and actuator for operating the latch. The clutch mechanism includes an input cam, an output cam, and an engagement pin having an axis and being dimensioned and configured for axial movement between a first position, in which the engagement pin engages both the input and output cams so that the input and output cams rotate synchronously, and a second position, which allows independent rotational movement of the input cam and the output cam.

Abstract: A modular electronic door security system includes an input device, a control module and an electro-mechanical lockset mounted to a door configured to facilitate electrical interconnections interiorly of the door. The input device and/or control module may be mounted in a user defined location on the surface of the door. An optional override mechanism allows access to secured areas in the event of system failure or emergency.

Abstract: An exit bar employs a dual action latch retractor comprising a slotted link which connects manual and electrically actuated latch retraction means. The slot permits the latch to be retracted by a solenoid latch retractor regardless of the position of the push bar or other manual latch retraction means. A buffer spring transmits energy from the solenoid latch retractor to the push pad so that under normal circumstances actuation of the solenoid latch retractor retracts both the latch and push pad. However, if the push pad is jammed in the projected position, the buffer spring is compressed to permit relative movement between the solenoid latch retractor and the manual latch retraction mechanism. As soon as the force holding the push pad in an extended position is removed, the energy stored in the buffer spring is applied to the push pad through the mechanical linkage to retract the push pad.

Abstract: An exit bar for securing a door has a housing assembly adapted for mounting to a door. A push pad for receiving a push force is mounted to the housing assembly. A latch is pivotable relative to the housing assembly to releasably latch the door to which the exit bar is mounted. A mechanical retraction system links the push bar to the latch so that a push force exerted on the push pad releases the latch. A selectively operable electromagnet is disposed within the housing assembly. An electromagnetic retraction system links the electromagnet to the latch independently of the mechanical retraction system so that selective operation of the electromagnet retracts the latch. The electromagnet further dogs the electromagnetic retraction system, and thereby the latch, in the retracted condition as long as the electromagnet receives power. The push bar and mechanical retraction system may be dogged by the electromagnet upon the first exertion of a push force thereon.

Abstract: A exit bar for securing a door has a housing adapted for mounting to a door. A push pad for receiving a push force is mounted to the housing. A latch extends from the housing to releasably latch the door to which the exit bar is mounted. A link system links the push pad to the latch so that a push force exerted on the push pad releases the latch. An electromagnetic disposed in the housing causes an armature to engage the link system to retract the latch. The exit bar further dogs the latch in the unlatched position as long as the power control system for the electromagnet receives an operate signal and for a preestablished delay time after the operate signal has been removed.

Abstract: An exit bar for securing a door has a housing adapted for mounting to a door. A push pad for receiving a push force is mounted to the housing. A latch extends from the housing to releasably latch the door to which the exit bar is mounted. A link system links the push pad to the latch so that a push force exerted on the push pad releases the latch. An electromagnetic lock disposed in the housing locks the link system to prevent releasing of the latch. The electromagnetic lock employs an electromagnet and a movable armature to lock the link system. The exit bar further delays unlocking the link system for a preestablished delay time after the push pad has been pushed.

Abstract: An electronic door security system employs an input console having two readers for enhanced security. A microprocessor processes inputs applied at each of the readers to selectively permit access through a secured door. Application of an input to either reader transforms the controller to a power-up mode.

Abstract: An exit bar for securing a door has a housing adapted for mounting to a door. A push pad for receiving a push force is mounted to the housing. A latch extends from the housing to releasably latch the door to which the exit bar is mounted. A link system links the push pad to the latch so that a push force exerted on the push pad releases the latch. An electromagnetic lock disposed in the housing locks the link system to prevent releasing of the latch. The electromagnetic lock employs an electromagnet and a movable armature to lock the link system. The exit bar further delays unlocking the link system for a preestablished delay time after the push pad has been pushed.

Abstract: Free electron laser apparatus, for producing coherent electromagnetic radiation within a spectral range extending from millimeter to visible wavelengths, includes elements for generating an electron beam and for directing the beam to move over the surface of a diffraction grating, thereby producing electromagnetic radiation. Optical or quasi-optical elements confine the electromagnetic radiation, including bound surface mode radiation, to generate feedback, resulting in stimulated, coherent emission. Methods are disclosed for increasing the electron beam current above a certain value so as to provide sufficient feedback of the electromagnetic radiation for producing stimulated, coherent emission.

Abstract: An impact resistant armature has an armature plate defining a stepped bore therethrough. The stepped bore defines a shoulder. A mounting assembly having an expanded head portion and a reduced shank portion is positioned in the bore, with the shank portion anchored to the vertical face of a door. The mounting assembly supports the armature assembly in a first position wherein the head portion and the shoulder define an initial gap. Upon impact by an intense force, the armature plate is movable to a second position wherein the head portion and the shoulder engage while the armature retains a bonded relationship with the electromagnet.

Abstract: Semiconductor film FEL uses an electron beam and a semiconducting-film-loaded, open, quasi-optical resonator to produce coherent, electromagnetic radiation at submm and far-infrared wavelengths.

Abstract: Free electron laser apparatus, for producing coherent electromagnetic radiation within a spectral range extending from millimeter to visible wavelengths, includes elements for generating an electron beam and for directing the beam to move over the surface of a diffraction grating, thereby producing electromagnetic radiation. Optical or quasi-optical elements confine the electromagnetic radiation to generate feedback, resulting in stimulated, coherent emission.

Abstract: A conduit bending plane and bend angle indicator having a clamp mounting, an anti-dog bubble level to indicate the bend of plane, and an angle bubble level to indicate the bend angle. The invention further features a ratchet connection between the anti-dog bubble level and the clamp mounting to enable the anti-dog bubble level to be referenced at level without having to rotate the conduit to level. A second ratchet connection is also provided which allows the angle bubble level to be set plumb so as to accurately indicate the bend angle without having a first level the conduit along its longitudinal axis. Thus, the disclosed invention provides a quick and easy device to indicate the bending plane and bend angle of conduit being bent without requiring additional adjustments to the conduit once the device is mounted to it.

Abstract: A precipitation gauge in which precipitation is absorbed by a suitable material having two pairs of grids also disposed therein to form two capacitances. An ac signal is applied to the grids to measure the impedance between the grids and hence the volume of precipitation absorbed.