Abstract: The over-running clutch pulley (10) of a preferred embodiment of the invention includes a sheave member (20), a hub member (22) located substantially concentrically within the sheave member, and a clutch member (24), which cooperate to rotationally engage an input device (12) and an output device (14). The sheave member preferably includes a sheave input section (26) adapted to engage the input device, and a sheave clutch section (28) defining a sheave clutch surface (30). Similarly, the hub member preferably includes a hub output section (32) adapted to engage the output device, and a hub clutch section (34) defining a hub clutch surface (36). In the preferred embodiment, either the sheave clutch surface, the hub clutch surface, or both, have a surface microhardness greater than the hub output section.

Abstract: The over-running clutch pulley (10) includes a sheave member (20), a hub member (22) a clutch member (24), and a coating (26), which cooperate to rotationally engage an input device (12) and an output device (14). The sheave member (20) preferably includes a sheave input section (28) defining a sheave input surface (30) adapted to engage the input device (12), and a sheave clutch section (32) defining a sheave clutch surface (34). Similarly, the hub member (22) preferably includes a hub output section (36) defining a hub output surface (38) adapted to engage the output device (14), and a hub clutch section (40) defining a hub clutch surface (42). The coating (26) is disposed on the sheave input surface (30), the sheave clutch surface (34), the hub output surface (38), and the hub clutch surface (42), which protects against substantial corrosion and increases the wear resistance of these surfaces, while minimizing the cost of the over-running clutch pulley (10).

Abstract: Multiple signals are graphically presented. A signal for each measured frequency channel is separately represented on a display. Representations of the signals are superimposed. Center channel frequencies for all the representations of the signals are aligned relative to a single position on a first axis. Amplitude for all the representations of the signals is indicated relative to a second axis. Overlap of a signal within a compliance mask indicates violation of an amplitude minimum, an amplitude maximum or frequency drift.

Abstract: The disclosure provides compositions and methods for blocking the proteasome pathway, as well as compounds that block mitotic cell cycle progression. Compounds disclosed include a family of molecules that bind to a multiubiquitin chain attached to a protein and thereby inhibit degradation of that protein by the proteasome pathway. According to another aspect of the disclosure, compounds are provided that inhibit cell cycle progression. Compounds disclosed herein may be formulated for pharmaceutical use and employed in methods for treating cancers or other hyperproliferative disorders.

Abstract: The over-running clutch pulley of a preferred embodiment of the invention includes a sheave member (20), a hub member (22) located substantially concentrically within the sheave member, a clutch member (24), a clutch lubricant (26) located near the clutch member, a bearing member (28) located between the sheave member and the hub member, and a bearing lubricant (30) located near the bearing member, which cooperate to rotationally engage an input device (12) and an output device (14). The sheave member preferably includes a sheave input section (32) adapted to engage the input device, and a sheave clutch section (34) defining a sheave clutch surface (36). Similarly, the hub member preferably includes a hub output section (38) adapted to engage the output device, and a hub clutch section (40) defining a hub clutch surface (42). The clutch lubricant (26) and the bearing lubricant (30) preferably include a base material selected from the group comprising ether, esther, and mineral oil.

Abstract: A nonpolarization-dependent method and apparatus for optical sampling of a user optical signal of a known frequency range (e.g., corresponding to 1550 nm wavelength) uses a probe signal in an unsplit form and applies a conversion {e.g., by sum frequency generation (SFG)} operation in a first stage to the probe signal and to a first polarization component of the user optical signal (e.g., ‘s’ component) to produce a first component of an output signal. In a second stage, a second polarization component of the user optical signal (e.g., ‘p’ component) is rotated by 90° to align with the first polarization component and then converted by mixing with the unsplit probe signal to produce a second component of an output signal. The first and second output component signals are both added and measured using a photomultiplier tube (PMT) or an avalanche diode.

Abstract: A sampling apparatus for use in high data rate jitter measurement systems based on offset sampling uses a trigger circuit, along with a time-based variable delay, to align a sampling strobe to drive two samplers. An input data signal is split and fed via separate signal paths into the two samplers. One of the samplers is delayed in sampling the input signal or the input is delayed to one of the samplers, such that the two samples of the input signal are offset in time. The jitter present in the SUT can be calculated using the two samples. In addition, when using two strobe circuits, the jitter inherently present in the strobe circuits can be compensated for by offset sampling a reference clock with each main strobe to determine the phase and cycle number of the reference clock at each strobe time.

Abstract: The over-running clutch pulley of the preferred embodiments of the invention includes a sheave member defining a sheave input surface adapted to engage an input device, a hub member defining a hub output surface adapted to engage an output device, and a clutch cartridge. The clutch cartridge includes a sheave engagement sleeve coupled to a sheave cartridge surface of the sheave member, a hub attachment sleeve coupled to a hub cartridge surface of the hub member, and a coil spring having the first end attached to the hub attachment sleeve. The coil spring is adapted to engage the sheave engagement sleeve upon the acceleration of the sheave member in a first rotational direction relative to the hub member, and to disengage the sheave engagement sleeve upon the deceleration of the sheave member in the first rotational direction relative to the hub member.

Abstract: The over-running clutch pulley (10) of a preferred embodiment of the invention includes a sheave member (20), a hub member (22) located substantially concentrically within the sheave member, and a clutch member (24), which cooperate to rotationally engage an input device (12) and an output device (14). The sheave member preferably includes a sheave input section (26) adapted to engage the input device, and a sheave clutch section (28) defining a sheave clutch surface (30). Similarly, the hub member preferably includes a hub output section (32) adapted to engage the output device, and a hub clutch section (34) defining a hub clutch surface (36). In the preferred embodiment, either the sheave clutch surface, the hub clutch surface, or both, have a surface microhardness greater than the hub output section.

Abstract: A method and apparatus for sampling optical input signal is presented. The apparatus includes a split waveplate for spatially rotating polarization direction of a first portion (for example half, or 50 percent) of the input signal to a first rotated direction and spatially rotating polarization direction of a second portion (for example the other 50 percent) of the input signal to a second rotated direction orthogonal to the first rotated direction. The apparatus further includes a sum frequency generator, for example a PPLN crystal, aligned to the first rotated direction to sample the input signal. The rotation of the two halves of the input signal is achieved using a split half-waveplate.

Abstract: The over-running clutch pulley (10) includes a sheave member (20), a hub member (22) a cluth member (24), and a coating (26), which cooperate to rotationally engage an input device (12) and an output device (14). The sheave member (20) preferably includes a sheave input section (28) defining a sheave input surface (30) adapted to engage the input device (12), and a sheave clutch section (32) defining a sheave clutch surface (34). Similarly, the hub member (22) preferably includes a hub output section (36) defining a hub output surface (38) adapted to engage the output device (14), and a hub clutch section (40) defining a hub clutch surface (42). The coating (26) is disposed on the sheave input surface (30), the sheave clutch surface (34), the hub output surface (38), and the hub clutch surface (42), which protects against substantial corrosion and increases the wear resistance of these surfaces, while minimizing the cost of the over-running clutch pulley (10).

Abstract: The over-running clutch pulley of a preferred embodiment of the invention includes a sheave member (20), a hub member (22) located substantially concentrically within the sheave member, a clutch member (24), a clutch lubricant (26) located near the clutch member, a bearing member (28) located between the sheave member and the hub member, and a bearing lubricant (30) located near the bearing member, which cooperate to rotationally engage an input device (12) and an output device (14). The sheave member preferably includes a sheave input section (32) adapted to engage the input device, and a sheave clutch section (34) defining a sheave clutch surface (36). Similarly, the hub member preferably includes a hub output section (38) adapted to engage the output device, and a hub clutch section (40) defining a hub clutch surface (42). The clutch lubricant (26) and the bearing lubricant (30) preferably include a base material selected from the group comprising ether, esther, and mineral oil.

Abstract: The over-running clutch pulley of a preferred embodiment of the invention includes a sheave member, a hub member located substantially concentrically within the sheave member, a spring member, and a stop surface, which cooperate to rotationally engage an input device and an output device. The sheave member preferably includes a sheave input section adapted to the engage the input device, and a sheave clutch section defining a sheave clutch surface. Similarly, the hub member preferably includes a hub output section adapted to engage the output device, and a hub clutch section defining a hub clutch surface. The stop surface functions to engage the spring member and to transfer some torque from the sheave member to the hub member during the acceleration of the sheave member in the first rotational direction relative the hub member.

Abstract: The over-running clutch pulley of the preferred embodiments of the invention includes a sheave member defining a sheave input surface adapted to engage an input device, a hub member defining a hub output surface adapted to engage an output device, and a clutch cartridge. The clutch cartridge includes a sheave engagement sleeve coupled to a sheave cartridge surface of the sheave member, a hub attachment sleeve coupled to a hub cartridge surface of the hub member, and a coil spring having the first end attached to the hub attachment sleeve. The coil spring is adapted to engage the sheave engagement sleeve upon the acceleration of the sheave member in a first rotational direction relative to the hub member, and to disengage the sheave engagement sleeve upon the deceleration of the sheave member in the first rotational direction relative to the hub member.

Abstract: An over-running clutch pulley of the preferred embodiment includes a sheave member, a hub member located substantially concentrically within the sheave member, a sealing member, and a clutch member, which cooperate to rotationally engage the drive belt and the cylindrical shaft. The sheave member preferably includes a sheave input section adapted to engage the input device, a sheave clutch section defining a sheave clutch surface, and a sheave flange element. Similarly, the hub member preferably includes a hub output section adapted to engage the output device, a hub clutch section defining a hub clutch surface, and a hub lip element. The sealing member preferably includes a seal outer section frictionally engaged with the sheave flange element, and a seal inner section slidably engaged with the hub lip element. The sealing member preferably functions to substantially seal a cavity defined by the sheave flange element and the hub lip element.

Abstract: The over-running clutch pulley of a preferred embodiment of the invention includes a sheave member, a hub member located substantially concentrically within the sheave member, a spring member, and a stop surface, which cooperate to rotationally engage an input device and an output device. The sheave member preferably includes a sheave input section adapted to the engage the input device, and a sheave clutch section defining a sheave clutch surface. Similarly, the hub member preferably includes a hub output section adapted to engage the output device, and a hub clutch section defining a hub clutch surface. The stop surface functions to engage the spring member and to transfer some torque from the sheave member to the hub member during the acceleration of the sheave member in the first rotational direction relative the hub member.

Abstract: An over-running clutch pulley of the preferred embodiment includes a sheave member, a hub member located substantially concentrically within the sheave member, a sealing member, and a clutch member, which cooperate to rotationally engage the drive belt and the cylindrical shaft. The sheave member preferably includes a sheave input section adapted to engage the input device, a sheave clutch section defining a sheave clutch surface, and a sheave flange element. Similarly, the hub member preferably includes a hub output section adapted to engage the output device, a hub clutch section defining a hub clutch surface, and a hub lip element. The sealing member preferably includes a seal outer section frictionally engaged with the sheave flange element, and a seal inner section slidably engaged with the hub lip element. The sealing member preferably functions to substantially seal a cavity defined by the sheave flange element and the hub lip element.

Abstract: Repetitive sampling of a data signal is performed. A clock reference is generated. The clock reference has a known period relationship with the data signal. The clock reference and the data signal are simultaneously sampled. The sampled information from the clock reference is used to determine in what phase of the clock reference sampled values of the data signal occur.

Abstract: Multiple signals are graphically presented. A signal for each measured frequency channel is separately represented on a display. Representations of the signals are superimposed. Center channel frequencies for all the representations of the signals are aligned relative to a single position on a first axis. Amplitude for all the representations of the signals is indicated relative to a second axis. Overlap of a signal within a compliance mask indicates violation of an amplitude minimum, an amplitude maximum or frequency drift.

Abstract: A sampling apparatus for use in high data rate jitter measurement systems based on offset sampling is disclosed. A trigger circuit is used, along with a time-based variable delay, to align a sampling strobe to drive two samplers. An input data signal is split and fed via separate signal paths into the two samplers. One of the samplers is delayed in sampling the input signal or the input is delayed to one of the samplers, such that the two samples of the input signal are offset in time. The jitter present in the SUT can be calculated using the two samples. In addition, when using two strobe circuits, the jitter inherently present in the strobe circuits can be compensated for by offset sampling a reference clock with each main strobe to determine the phase and cycle number of the reference clock at each strobe time.