Abstract: A pistol comprising a frame; a striker connected to the frame and movable between a rearward energized position and a forwarded striking position; a trigger; a sear responsive to the trigger and operable to restrain the striker in the rearward position and release the striker to the forward position; a safety element movable between a live condition in which trigger motion to release of the striker is enabled and a safe condition in which trigger motion to release of the striker is disabled; and the safety element including a secondary safety surface operably engaging the sear to maintain the sear in a retraining position when the safety element is in the safe condition.

Abstract: The subject matter herein provides for online dating gameplay that offers instant and ongoing new opportunities for content, interaction, communication, and risk, and that rewards communication initiation and persistence, all without increasing the skill level required to find a relationship while providing an incentive to play or engage with the online dating community continuously. The approach employs gamification (and, in particular, a slot machine-style display) to encourage users (sometimes referred to herein as “daters” or “players”) to frequently log in and engage with other daters.

Abstract: A tilting shelf system for a mobile support includes a shelf pivotably coupled to the mobile support. A handle coupled to the shelf may be actuated by a user between locked and unlocked positions to urge a securing member between secured and unsecured positions. While the securing member is in the unsecured position, the shelf is rotatable relative to the mobile support to be adjusted into a desired tilted or angled orientation. Once in the desired orientation, the user may actuate or release the handle to urge the securing member into the securing position, thus fixing the orientation of the shelf relative to the mobile support. A biasing member coupled to the shelf and attachable to the mobile support, produces a biasing force to aid in moving the shelf as the biasing member extends and retracts in response to movement of the shelf relative to the mobile support.

Abstract: The subject matter herein provides for online dating gameplay that offers instant and ongoing new opportunities for content, interaction, communication, and risk, and that rewards communication initiation and persistence, all without increasing the skill level required to find a relationship while providing an incentive to play or engage with the online dating community continuously. The approach employs gamification (and, in particular, a slot machine-style display) to encourage users (sometimes referred to herein as “daters” or “players”) to frequently log in and engage with other daters.

Abstract: The subject matter herein provides for online dating gameplay that offers instant and ongoing new opportunities for content, interaction, communication, and risk, and that rewards communication initiation and persistence, all without increasing the skill level required to find a relationship while providing an incentive to play or engage with the online dating community continuously. The approach employs gamification (and, in particular, a slot machine-style display) to encourage users (sometimes referred to herein as “daters” or “players”) to frequently log in and engage with other daters.

Abstract: A firefighting system includes a base plate having an opening and configured to receive a sensor, a top plate spaced apart from the base plate, a valve body disposed between the base plate and the top plate, a plurality of guide rods spaced around the base plate opening and disposed between the base plate and the top plate and coupled to the base plate, the plurality of guide rods and the top plate configured to support vertical displacement of the valve body, an actuator configured to vertically displace the valve body, and a constant flow rate control system configured to control the actuator to adjust a valve aperture formed between the valve body and the base plate.

Abstract: The subject matter herein provides for online dating gameplay that offers instant and ongoing new opportunities for content, interaction, communication, and risk, and that rewards communication initiation and persistence, all without increasing the skill level required to find a relationship while providing an incentive to play or engage with the online dating community continuously. The approach employs gamification (and, in particular, a slot machine-style display) to encourage users (sometimes referred to herein as “daters” or “players”) to frequently log in and engage with other daters.

Abstract: A valve assembly for a firefighting bucket includes a base plate having an opening, a valve body configured to seal the opening of the base plate, and a linear actuator coupled to the valve body and configured to displace the valve body. Valve control systems direct the release of firefighting material through the valve assembly at a constant flow rate. The valve body may have a chamfered, tapered, or rounded surface to restrain the head pressure of the firefighting material.

Abstract: An integrated microfabricated alkali vapor cell sensor includes two alkali vapor regions, with a signal path through each. One or two signal emitters, with associated optical signal rotators, such as quarter wave plates, provide circularly polarized input signals into the alkali vapor regions, so that a first signal through the first alkali vapor region is circularly polarized in an opposite direction from a second signal through the second alkali vapor region. Output signals from the two alkali vapor regions are transformed to linearly polarized signals and then measured by one or more signal detectors. A first Larmor frequency is estimated from the output signal from the first alkali vapor region, and a second Larmor frequency is estimated from the output signal from the second alkali vapor region. A heading error-free Larmor frequency is estimated from the first Larmor frequency and the second Larmor frequency.

Abstract: An integrated microfabricated vapor cell sensor includes a transparent sensor cell body. The cell body has a cavity for a sensor fluid vapor which is covered by a first plate attached to the cell body. The sensor has a first signal path extending from a first signal emitter, through the cell body, through the cavity, through the cell body again, and to a first signal detector, and a second signal path extending through the cavity. The second signal path intersects the first signal path in the cavity. The second signal path may extend through the cell body, or may extend through the first plate. The signal emitters and signal detectors are located in the integrated microfabricated vapor cell sensor.

Abstract: The application relates to a Ramjet solid fuel having an ignition temperature of less than 400° C., the fuel comprising a bis-(ethylene oxy) methane polysulfide polymer (BMPP) and hydroxyl-terminated polybutadiene (HTPB), the copolymer having a BMPP/HTPB weight ratio of from 1/3 to 3/1; and the fuel comprising at least 85 weight % copolymer. The BMPP comprises from 5 to 8 weight percent mercaptan. Furthermore, the BMPP is selected from HS(RSS)aCH2CH((SSR)cCSH)CH2(SSR)bSH??a) where R?—(CH2)2OCH2O(CH2)2— and a+b+c<7; and H(SC2H4OCH2OC2H4S)nH where n=7.

Abstract: A modular suppressor kit includes a modular suppressor and suppressor tool. The modular suppressor includes a barrel attachment portion that has a central passage. The barrel attachment portion is configured to attach to a firearm barrel. The modular suppressor includes a cap portion that has a central passage. The modular suppressor includes a body portion that has an internal baffle structure and an expansion chamber. The body portion is attachable to, and separable from, the barrel attachment portion and the cap portion. The body portion defines a central passage that is alignable with the central passage of the barrel attachment portion and the central passage of the cap portion. The suppressor tool has an engagement feature for engaging with at least one of the barrel attachment portion, cap portion, and body portion.

Abstract: A modular suppressor kit includes a modular suppressor and suppressor tool. The modular suppressor includes a barrel attachment portion that has a central passage. The barrel attachment portion is configured to attach to a firearm barrel. The modular suppressor includes a cap portion that has a central passage. The modular suppressor includes a body portion that has an internal baffle structure and an expansion chamber. The body portion is attachable to, and separable from, the barrel attachment portion and the cap portion. The body portion defines a central passage that is alignable with the central passage of the barrel attachment portion and the central passage of the cap portion. The suppressor tool has an engagement feature for engaging with at least one of the barrel attachment portion, cap portion, and body portion.

Abstract: A modular suppressor kit includes a modular suppressor and suppressor tool. The modular suppressor includes a barrel attachment portion that has a central passage. The barrel attachment portion is configured to attach to a firearm barrel. The modular suppressor includes a cap portion that has a central passage. The modular suppressor includes a body portion that has an internal baffle structure and an expansion chamber. The body portion is attachable to, and separable from, the barrel attachment portion and the cap portion. The body portion defines a central passage that is alignable with the central passage of the barrel attachment portion and the central passage of the cap portion. The suppressor tool has an engagement feature for engaging with at least one of the barrel attachment portion, cap portion, and body portion.