Abstract: A system for detecting particles, including: a first device to measure concentration of particles, including an electrometer measuring device coupled to a charger and/or to an optical particle counter; a second device to measure concentration of particles, including a condensation nuclei counter; a calculation unit configured to calculate a ratio and/or a difference between a first measurement of the particle concentration in an airflow, to be performed by the first measurement device, and a second measurement of the particle concentration in an airflow, to be performed by the second measurement device, and configured to provide a comparison between the ratio and/or the difference between the first and second measurements and a threshold value to determine presence of particles of interest other than ambient air particles.

Abstract: There is disclosed a substantially integrated, concealed, and discreet device for extending and holding a mobile recording device. A user of this holder device can unlock the mechanism, pull an extension arm segment which will pull past the body of the recording device so as to form a handle and extension and thereby allow the user to capture audio, video, and other images at a distance greater than if holding the mobile recording device directly in his or her hand. Thus an extensible mobile recording device holder is provided that allows for a compact and concealable mechanism and efficient deployment so that users can quickly and adequately capture images from more varied and greater perspectives.

Abstract: There is disclosed a substantially integrated, concealed, and discreet device for extending and holding a mobile recording device. A user of this holder device can unlock the mechanism, pull an extension arm segment which will pull past the body of the recording device so as to form a handle and extension and thereby allow the user to capture audio, video, and other images at a distance greater than if holding the mobile recording device directly in his or her hand. Thus an extensible mobile recording device holder is provided that allows for a compact and concealable mechanism and efficient deployment so that users can quickly and adequately capture images from more varied and greater perspectives.

Abstract: A system for detecting particles, including: a first device to measure concentration of particles, including an electrometer measuring device coupled to a charger and/or to an optical particle counter; a second device to measure concentration of particles, including a condensation nuclei counter; a calculation unit configured to calculate a ratio and/or a difference between a first measurement of the particle concentration in an airflow, to be performed by the first measurement device, and a second measurement of the particle concentration in an airflow, to be performed by the second measurement device, and configured to provide a comparison between the ratio and/or the difference between the first and second measurements and a threshold value to determine presence of particles of interest other than ambient air particles.

Abstract: There is disclosed an eating utensil design for providing comfortable control of certain food. A user of the utensil can grasp the utensil which has at least three digit elements for grasping food. An example of the three digit elements are in the form of three channeled compartments for receiving a person's digits or digits. Any three digits or digits can be used such as the thumb or the four other digits. The most common implementation includes using the thumb in one channel, and the index digit and the middle digit in two opposing channels. Thus an eating utensil is provided that allows comfortable and efficient manipulation of food while shielding the digits from sauces and that can be quickly and single-handedly grasped for use and released.

Abstract: An eating utensil design for providing comfortable control of certain food. A user of the utensil can grasp the utensil which has at least three digit elements for grasping food. An example of the three digit elements are in the form of three channeled compartments for receiving a person's digits or digits. Any three digits or digits can be used such as the thumb or the four other digits. The most common implementation includes using the thumb in one channel, and the index digit and the middle digit in two opposing channels. Thus an eating utensil is provided that allows comfortable and efficient manipulation of food while shielding the digits from sauces and that can be quickly and single-handedly grasped for use and released.

Abstract: An eating utensil design for providing comfortable control of certain food. A user of the utensil can grasp the utensil which has at least three digit elements for grasping food. An example of the three digit elements are in the form of three channeled compartments for receiving a person's fingers or digits. Any three fingers or digits can be used such as the thumb or the four other fingers. The most common implementation includes using the thumb in one channel, and the index finger and the middle finger in two opposing channels. Thus an eating utensil is provided that allows comfortable and efficient manipulation of food while shielding the fingers from sauces and that can be quickly and single-handedly grasped for use and released.

Abstract: An eating utensil design for providing comfortable control of certain food. A user of the utensil can grasp the utensil which has at least three digit elements for grasping food. An example of the three digit elements are in the form of three channeled compartments for receiving a person's fingers or digits. Any three fingers or digits can be used such as the thumb or the four other fingers. The most common implementation includes using the thumb in one channel, and the index finger and the middle finger in two opposing channels. Thus an eating utensil is provided that allows comfortable and efficient manipulation of food while shielding the fingers from sauces and that can be quickly and single-handedly grasped for use and released.

Abstract: A rivet or screw connection, comprising: a first component having a first through-opening; a second component having a second through-opening; and a rivet or screw having shank, wherein the first and second through-openings are arranged and penetrated by the shank of the rivet or screw, the rivet or screw comprises a rivet head, screw head or nut on both sides of the through-openings, having a diameter larger than diameters of the through-openings, and at least the first component comprises a pot-like recess near the rivet or screw extending towards the second component, on whose base the first through-opening is arranged.

Abstract: A portal covering such as door or window having a handle that rotates as the door or window rotates. The handle rotatably mounted onto the portal covering and drives the covering around an axis associated with a frame or wall. As the handle is rotated on its axis on the covering, the covering rotates on its axis on the frame. This allows a user to always have contact with the handle at all angles of rotation of the covering. The rotation is accomplished through a direct drive or a gearing system which in this case could be in the form of a miter gear, or other bevel gears linking two shafts together. Other embodiments are also possible such as drive mechanisms associated with a push plate, cables and pulleys, or gear boxes.

Abstract: Mixtures of chlorendic anhydride and maleic anhydride that are completely free of liquid hydrocarbons and liquid halohydrocarbons without the need for any purification are novel and are prepared by reacting hexachlorocyclopentadiene with a stoichiometric excess of maleic anhydride in the absence of solvents. The process is useful for preparing other Diels-Alder reaction products from maleic anhydride.

Abstract: A portal covering such as door or window having a handle that rotates as the door or window rotates. Essentially this portal covering includes a handle, that is rotatably mounted onto the portal covering and that drives the door around an axis associated with a frame or wall. As the handle is rotated on its axis on the cover, the cover rotates on its axis on the frame. Similarly, as the cover rotates within the frame, the handle rotates with this rotating cover allowing a user to always have contact with the handle at all angles of rotation of the cover. The rotation is accomplished through a gearing system which in this case could be in the form of a miter gear, or other bevel gears or a direct drive linking two shafts together. Other embodiments are also possible such as drive mechanisms associated with a push plate, cables and pulleys, gear boxes, push plates or any other type of drive system that incorporates the rotational movement of a handle which translates into the rotational movement of a door.

Abstract: An operator for moving a closure, such as a window or a door rotatably mounted to a frame, between open and closed positions. The operator including first and second rotatable shafts, a fixed shaft, and a handle. The first and second rotatable shafts and the handle being rotatably mounted to the closure while the fixed shaft is non-rotatably mounted to the frame. The fixed shaft including a gear, the first shaft including a gear at each end thereof, and the second shaft including a gear at one end thereof and the handle at the other end thereof. One of the gears of the first shaft engaging the gear of the fixed shaft and the other one of the gears of the first shaft engaging the gear of the second shaft. To operate the closure operator, a user rotates the handle which rotates the second shaft causing the first shaft to rotate. The geared engagement of the first shaft to the fixed shaft causes the closure to rotate with respect to the frame.

Abstract: A portal covering such as door or window having a handle that rotates as the door or window rotates. Essentially this portal covering includes a handle, that is rotatably mounted within the portal covering. The handle is coupled to a shaft that is coupled to the portal covering via C-shaped locks. On an end of the shaft is a bevel gear that meshes with an adjacent bevel gear. The adjacent bevel gear is coupled to a shaft extending on a different axis from the first shaft. There is also a second, oppositely spaced bevel gear positioned on this second shaft opposite the first bevel gear. This second bevel gear on the second shaft couples with a fixed bevel gear that is fixed to a cover frame such as a door frame or a window frame. As the cover rotates within the frame, the handle rotates with this cover rotation allowing a user to always have contact with the handle at all angles of rotation of the cover.

Abstract: A postage meter (franking machine) uses a digital print head such as an ink-jet or thermal transfer or dot-matrix print head, for which it is necessary to know the velocity of the mail piece passing by the print head. Two collimated monochromatic beams strike the mail piece, one at an angle leading the mail piece velocity and the other at an angle lagging the mail piece velocity. The beams converge yielding a sensing region filled with a diffraction pattern. The mail piece, assumed to be rough at a scale that is appropriate for the velocity measurement, moves at some velocity. A detector detects light intensity (photon flux) at a small region within the sensing region, and the intensity signal has a frequency that is proportional to the mail piece velocity. The frequency is detected or measured, the instantaneous velocity is derived therefrom, and the velocity is used to control the print head.