Abstract: A pepper grinder has a grinding assembly including an inner grinding member and an outer grinding member turnable relative to each other to grind pepper in between. The outer grinding member is secured in a lower housing member by means of a lower securing ring connected to the outer grinding member; the securing ring has saw teeth projecting from an upper edge, and is pressed into the lower housing for the pointed ends of the saw teeth to be inserted into the inner side of the lower housing such that the outer grinding member can't turn relative to the lower housing. The inner grinding member is also secured to an upper housing by a securing ring of the kind. Thus, the inner grinding member can turn relative to the outer one when the upper housing is turned relative to the lower housing.

Abstract: A liquid container has a content ejecting device fitted to the holding body, and a fall-prevention element provided on the content ejecting device, which has a cap depressable for the content to be ejected. The ejecting device includes a connecting member, the cap and a straw combination. The connecting member has an annular protrusion on a tube stub sticking up from the main surface, and is secured to the holding body. The cap is movably mounted onto the tube stub, and has annular protrusions on the inner side. The straw combination communicates with the cap and is received in the holding body from the lower portion as to eject the content via the cap when the cap is depressed. The annular protrusion of the tube stub will come into contact with the annular protrusions of the cap to prevent the holding body from falling down when the container is lifted from the cap.

Abstract: A depressable cap of a bottle for ejecting contents of the bottle is provided. The depressable cap comprises a depressable member, an exit tube and a guiding tube. The depressable member is fitted onto an upper opening of the bottle, and has a passage consisting a first threaded end portion, and a second threaded end portion. The first threaded end portion is perpendicular to, and in open communication with the second threaded end portion. The exit tube has a threaded end portion screwed into the first threaded end portion. The guiding tube has a threaded end portion screwed into the second threaded end portion of the depressable member.

Abstract: Microorganisms or enzymes immobilized in beads are prepared using a combination of calcium alginate, polyethylene glycol (PEG) and polyethylene imide (PEI). An aqueous solution containing 1-14% by weight each of calcium alginate, PEG and PEI is combined with a concentrated solution of a microorganism or an enzyme to form a mixture. The mixture is combined with an aqueous solution of 4-8% w/v CaCl.sub.2 to form spherical beads that are allowed to remain in the solution for 3-4 hours. Thereafter, the beads are rinsed with water for 2-3 minutes, transferred to water in a mixer, and stirred with a magnet for 6-9 hours. The resultant beads containing the microorganism or enzyme can be used for removing inorganic nitrogen and organic carbon in waste water, or in processes for making biochemical products.

Abstract: A bottle cap depressable to eject contents of the bottle comprises a cover, a straw combination and an outlet head. The cover is connected to the neck of the bottle, and has a central hole having a guide flange therearound. The straw combination has a tapering depressing tube passed through the central hole of the cover, and connected to the outlet head from the upper end thereof. The tapering depressing tube tapers towards the upper end such that the depressing tube can move smoothly with both the taper thereof and the guide flange of the cover when the outlet head is depressed and released repeatedly to eject the contents of the bottle for use.

Abstract: A bottle cap depressable to eject contents of the bottle has a depressing outlet member, a connecting member and a securing member. The securing member has an upper and a lower securing end portions each having several securing teeth. The upper end securing teeth have upwards-aimed sloped surfaces while the lower end securing teeth have downwards-aimed sloped surfaces. The upper and the lower securing end portions are inserted into the depressing outlet member, and a straw combination respectively with the securing teeth of the upper and the lower end portion securely engaging the inner circumference of the depressing outlet member and that of the straw combination respectively. Thus, the depressing outlet member is securely connected to the straw combination, preventing the bottle from separating from the outlet member and falling down to the ground when a user lifts the bottle from the outlet member.

Abstract: A thermostatic switch comprised of a casing having fastened therein a beryllium plate, which is connected to a first conductor, and a contact plate, which is connected to a second conductor, a cap attached to said casing at the top, which has a ceramic rod movably fastened therein and controlled by a bimetal element to press on said beryllium plate or release therefrom causing said beryllium plate to connect said contact plate forming into a closed circuit or disconnect therefrom forming into an opened circuit, a fastening plate secured to said cap by a top cover for fastening the thermostatic switch to a heating unit to be controlled. The beryllium plate has a raised portion engaged in a hole on the first conductor and then fastened together to the casing by a rivet. The contact plate is integrally made on the second conductor and fastened to the casing by a rivet.