摘要:
A composite structure manufactured on a knit stitch machine and including a pair of preformed substrates joined together by a knitted yarn system while being separated by portions of the yarn system. Preferably the yarn is bulked after knitting and defines a plurality of supports between the substrates. The composite is produced by feeding the substrates through a knit stitch machine, on opposite sides of a spacer bar and developing the knit stitches of the yarn system through and about the substrates while located on opposite sides of the spacer bar. After the composite is produced it preferably is subjected to heat to cause yarn of the yarn system to bulk and form supports between the substrates. The composites may be enclosed in sealed polymeric envelopes to form a cushioning pad, or may be used for filtration, insulation or other uses. The process of producing the composite and the spacer bar are also disclosed and claimed.
摘要:
A locked loop may have an adjustable hysteresis and/or a tracking speed that can be programmed by a user of an electronic device containing the locked loop or controlled by an integrated circuit device containing the locked loop during operation of the device. The looked loop may include a phase detector having a variable hysteresis, which may be coupled to receive a reference clock signal and an output clock signal from a phase adjustment circuit through respective frequency dividers that can vary the rate at which the phase detector compares the phase of the output clock signal to the phase of the reference clock signal, thus varying the tracking speed of the loop. The hysteresis and tracking speed of the locked loop may be programmed using a variety of means, such as by a temperature sensor for the electronic device, a mode register, a memory device command decoder, etc.
摘要:
A locked loop may have an adjustable hysteresis and/or a tracking speed that can be programmed by a user of an electronic device containing the locked loop or controlled by an integrated circuit device containing the locked loop during operation of the device. The looked loop may include a phase detector having a variable hysteresis, which may be coupled to receive a reference clock signal and an output clock signal from a phase adjustment circuit through respective frequency dividers that can vary the rate at which the phase detector compares the phase of the output clock signal to the phase of the reference clock signal, thus varying the tracking speed of the loop. The hysteresis and tracking speed of the locked loop may be programmed using a variety of means, such as by a temperature sensor for the electronic device, a mode register, a memory device command decoder, etc.
摘要:
A warp knit fabric having loops projecting outwardly therefrom on both the face and back of the fabric which can be used as a wiping cloth, female connector fabric, etc. The fabric is a three-bar fabric having bar movements of (1) 1-0, 0-1, 1-0, 0-1; (2) 6-6, 0-1, 4-4, 0-1; and (3) 4-4, 3-3, 4-4, 1-1.
摘要:
A roofing membrane having a reinforcing fabric saturated with a bituminous material. The reinforcing fabric having a first fiberglass scrim layer to which is stitched a non-woven polyester mat.
摘要:
A composite construction incorporating one or more mat layers of interwoven axially drawn heat fusible tape fiber elements. The axially drawn tape fiber elements incorporate a central or base layer of a strain oriented polymer with a covering layer of a heat fusible polymer. The covering layer of the tape fiber elements is characterized by a softening point below that of the base layer to permit bonding fusion upon application of heat. An arrangement of embedded non-olefin fiber elements extends in anchored relation at least partially across the thickness dimension of the mat structure. The composite is adapted for bonding to a substrate layer. An optional covering layer may be utilized.
摘要:
A composite construction incorporating one or more mat layers of interwoven axially drawn heat fusible tape fiber elements. The axially drawn tape fiber elements incorporate a central or base layer of a strain oriented polymer with a covering layer of a heat fusible polymer. The covering layer of the tape fiber elements is characterized by a softening point below that of the base layer to permit bonding fusion upon application of heat. An arrangement of embedded non-olefin fiber elements extends in anchored relation at least partially across the thickness dimension of the mat structure. The composite is adapted for bonding to a substrate layer. An optional covering layer may be utilized.
摘要:
A composite construction comprising a mat structure comprising a plurality of layers, each layer comprising plurality of fibers arranged substantially parallel to one another along a common fiber direction, a multiplicity of embedded fiber elements extending in anchored relation at least partially across the thickness dimension of the mat structure such that at least a portion of the embedded fiber elements project outwardly from the mat structure and the projecting portions define at least a partial surface covering across a first side of the mat structure, and a substrate layer disposed in layered relation to the mat structure in contacting, bonding relation with said first side of the mat structure such that at least a percentage of said portion of embedded fiber elements projecting outwardly from the mat structure is at least partially bonded or embedded into a surface portion of the substrate layer. The composite is adapted for bonding to a substrate layer. At least one interface layer disposed in layered relation to a first side of the mat structure may be included. Additional layers comprising plurality of fibers arranged substantially parallel to one another along a common fiber direction may be utilized.
摘要:
The present disclosure relates to a tape that comprises a weft-inserted warp knit fabric, which utilizes a combination stitch to secure the wales of the fabric. The combination stitch comprises a majority of successive chain stitches that are used with a minority of subsequent successive tricot stitches, such that the stitch follows the expression x+y, where x is the number of successive chain stitches and y is the number of subsequent successive tricot stitches. Contemplated x values are in the range of 5 to 15, and contemplated y values are in the range of 1 to 4. Multiple stitch formations can also be used (e.g., following an x+y/m+n/etc. configuration). The resulting weft-inserted warp knit fabric possesses superior dimensional stability and internal geometry, while maintaining the tearability requisite for a hand-tearable tape product.
摘要翻译:本公开涉及一种包括纬纱插入的经编织物的带,其使用组合针迹来固定织物的纵行。 组合针迹包括与少数随后的连续经编针迹一起使用的大多数连续的链式针迹,使得针迹遵循表达式x + y,其中x是连续链式线迹的数量,y是后续连续的针迹数量 经编针 考虑的x值在5至15的范围内,并且预期的y值在1至4的范围内。也可以使用多个缝合层(例如,遵循x + y / m + n /等等的配置)。 所生成的纬编经编针织物具有优异的尺寸稳定性和内部几何形状,同时保持手撕带产品的可撕裂性。
摘要:
A voltage generation circuit includes a voltage pump that receives a supply voltage and develops an output voltage responsive to a pump activation signal. A level detection circuit receives a pump-boost signal and is coupled to the voltage pump to receive the output voltage. The level detection circuit operates in a normal mode responsive to the pump-boost signal being inactive to develop the pump activation signal to activate the voltage pump responsive to the output voltage being less than or equal to a first low threshold value. The level detection circuit operates in a demand-controlled mode responsive to the pump-boost signal being active to develop the pump activation signal to activate the voltage pump responsive to the output voltage being less than or equal to a second low threshold value.