摘要:
A shaving head for an electric dry shaver which comprises a base element for carrying at least three cutter units, each providing an outer cutter and an inner cutter arranged to be moved in sliding contact relative to each other, whereby at least one cutter unit comprises a foil-type outer cutter. The shaving head further comprises a first trimmer-type cutting unit that has a plurality of slots defined by a plurality of adjacent bar elements featuring cutting edges. The shaving head comprises a second trimmer-type cutting unit having an outer cutter that comprises a plurality of teeth featuring cutting edges and spaced from each other so as to define a plurality of slits.
摘要:
The invention relates to a lower cutter (4) which, together with an associated upper cutter (6), forms the shaving head of a dry shaver. The upper cutter is designed in the form of a perforated foil (6) which at least partially encloses the lower cutter (4) and is prestressed against the same. The lower cutter (4) has a plurality of spaced-apart blades having cutting edges (12, 13) in the form of strips between two peripheral regions (9, 10). The lower cutter (4) is essentially U-shaped in cross section. The width of the strip tapers monotonously from the two peripheral regions (9, 10) in the direction of the center (Z).
摘要:
A method of drilling a wellbore is disclosed in which an electromagnetic signal is transmitted from a gap sub on a bottomhole assembly of a measurement-while drilling device into an earth formation. A related signal strength is measured at a surface location. Contact of a drill bit of the BHA with a new formation is estimated from a variation of the measured signal strength.
摘要:
The disclosure provides apparatus and method for estimating one or more electrical properties downhole. The apparatus includes a metallic member that has a longitudinal axis and a radial axis, at least two groups of slots formed in the metallic member, each group of slots having at lest two rows of slots, each row of slots containing at least one slot, and an electrical conductor placed over the rows of slots at an angle to the radial axis of the metallic member to form an antenna of a tool for use in a wellbore for estimating the electrical properties downhole. The antenna may be configured to operate as a transmitter or as a receiver.
摘要:
A system and method provides a flow measurement system for steady-state and transient flow. A housing contains a sleeve such that the sleeve is isolated from external mechanical Strains along the sleeve caused by flow pressure changes through the flow element are detected and related to fluid flow rate.
摘要:
The invention is directed to a beverage brewing apparatus having a water reservoir (1) and a pump (6) powered by an electric motor (45), the pump pressurizing water from the water reservoir (1) and delivering it to a flow-through heater (11) heated by an electric heater (14). In the flow-through heater (11), water is heated in a water conduit (13) and subsequently fed to a pressure chamber (35), adapted to be filled with coffee grinds, of a brewing unit (34) from which, following an extraction operation, the brewed coffee flows into a receptacle (38, 39). According to the invention, a valve device (20) opening when a predetermined pressure is exceeded is provided in the fluid path (9, 13, 15) between the flow-through heater (11) and the brewing unit (34). As a result, the water current delivered by the pump (6) and flowing through the flow-through heater (11) is maintained nearly constant, causing a uniform transfer of heat in the flow-through heater (11) and avoiding a standstill condition of the electric motor (45). This also keeps the temperature control of both the flow-through heater (11) and the water heated in the flow-through heater (11) at an approximately constant level.
摘要:
The invention is directed to a coffee maker for the preheating and keeping warm of cups, including a support surface (3) for cups (7, 8) and a heat source (2) delivering heat also to the cups (7, 8) resting on the support surface (3), wherein water held in a water reservoir (1) is heatable by means of the heat source (2) to a temperature such that vapors and/or steam are formed. Discharge orifices (9, 10) are provided in the support surface (3) for passage of the vapors and/or steam therethrough to circulate around the cups (7, 8) resting on the support surface (3), thereby heating them. In this manner, the cups are preheated readily and kept warm durably. In addition, the discharge orifices (9, 10) in the support surface may be closable by a spring-loaded flap structure (19) or a valve, a flap structure (19) or a valve being movable to an open position by the weight of a cup (7, 8).
摘要:
In a first embodiment, a beverage brewing machine has a reservoir in which water is heated, which is arranged upstream of a brewing unit and heatable by an electric heating device. At the bottom is an outlet valve which opens only on reaching a given water temperature so that the hot water flows through an outlet pipe downstream of the outlet valve from the reservoir over the upper surface of a product, preferably ground coffee or tea-leaves, contained in a brewing unit, from which it goes to a receptacle as a beverage after extraction of the product. Hot water from the reservoir can also be taken via a pipe along paths other than over the upper surface of the product into the receptacle. The pipe takes a siphon-like path, the vertex of which is far enough above the bottom of the reservoir so that hot water also flows via the pipe to the other path and not only over the upper surface of the product only when a certain level is reached in the reservoir. In a second embodiment, the hot water is conveyed along the other path by a brewing head that has main and secondary chambers.
摘要:
The invention is directed to a glass carafe (1) for storing a brewed beverage, comprising a glass vessel (2) having at its upper end (23) an opening (28) bounded by a rim (34). Affixed to the rim (34) is a plastic ring structure (30) provided with a pouring spout (39) and composed of a first (31), second (32) and third (33) ring. The third ring (33) serves as an outer boundary for the opening (28). The second ring (32) bears against the rim (34) of the glass vessel (2) from above. The first ring (31) engages from above within the opening (28) of the glass vessel (2) by resilient fastening elements (35). An annular circumferential neck (26) is formed on the glass vessel (2) below the rim (34). The fastening elements (35) resiliently engage the inside of the neck (26) from above, resting flush against the inner wall ( 27) in the area of the neck (26). Both the third ring (33) and the first ring (31) extend at a relative distance to the opening (28). This results in a durable firm seat of the plastic ring structure (30) on the glass vessel (2) also under the effect of frequent high temperatures.