摘要:
A pressure relief valve (12) for relieving air pressure from a passenger compartment (14) of a vehicle (10) includes a base (18) having a central portion (26) and a peripheral portion (28). A plurality of openings (46) extends through the base (18) and a plurality of flaps (60) closes the openings (46). Each flap (60) is associated with at least one opening (46). An inner end (66) of each flap (60) connects with the central portion (26) of the base (18). An outer end (68) of each flap (60) is movable relative to the central portion (26) of the base (18) and the other flaps for enabling airflow through the at least one associated opening (46). The pressure relief valve (12) further includes a connector (22) on the base (18) that is configured for securing the pressure relief valve (12) to the vehicle (10).
摘要:
A pressure relief valve (12) for relieving air pressure from a passenger compartment (14) of a vehicle (10) includes a base (18) having a peripheral portion (30). A central opening (42) extends through the peripheral portion (30). The pressure relief valve (12) also includes a plurality of flaps (74) for closing the central opening (42) of the base (18). Each flap (74) has an outer end (82) connected with the peripheral portion (30) of the base (18) and an inner end (80) that is movable relative to the peripheral portion (30) and the other flaps (74) for enabling airflow through the central opening (42). Each flap (74) has opposite surfaces (76 and 78) against which air pressure acts. Differential air pressure acts on the opposite surfaces (76 and 78) causing the flap (74) to move to enable airflow through the central opening (42).
摘要:
An apparatus for casting a patterned surface on both sides of a web. The apparatus includes a first patterned roll; a second pattered roll; and a means for rotating the first and second patterned rolls such that their patterns are transferred to opposite sides of the web while it is in continuous motion. During this process, their patterns are maintained in continuous registration to within at least 100 microns, and preferably at least 20 microns.
摘要:
A wireless mesh network provides secure communication by encrypting data using one or more encryption keys. A configuration device in communication with a security manager of the network provides a temporary secure communication path between the security manager and a new field device to be added to the mesh network. Cryptographic material and other configuration data can then be transferred between the security manager of the network and the new field device securely via the configuration device.
摘要:
A microreplicated article is disclosed. The article includes an opaque web having first and second opposed surfaces. The first surface includes a first microreplicated structure having a plurality of first features. The second surface includes a second microreplicated structure having a plurality of second features. The first microreplicated structure and the second microreplicated structure retain registration within 100 micrometers.
摘要:
A microreplicated polarizing article is disclosed. The article includes a polarizing web including first and second opposed surfaces. The first surface includes a first microreplicated structure having a plurality of first features. The second surface includes a second microreplicated structure having a plurality of second features registered to within 100 micrometers of each other. PATENT
摘要:
The present invention utilizes operation of a valve actuator to generate electrical power. A portion of the mechanical energy generated by operation of a valve actuator is converted to electrical energy. The mechanical energy may be converted to electrical energy at the same time as the valve actuator is operating or the mechanical energy may be stored for later conversion. A valve actuator may be operated manually, electrically, pneumatically, or hydraulically. Generated electrical energy may also be stored.
摘要:
Embodiments include a blood collecting system comprising a scale, a blood agitating system, a blood bag and a tube for extracting blood from a donor. The collecting system comprises, or is connected to, a processor for controlling the scale, the blood agitating system and the amount of blood being extracted from the donor. The processor is arranged to store one or more formulas for calculating an optimum amount of blood that can be donated. The processor can receive information regarding which formula to be used, the parameters necessary for the chosen formula. The processor is arranged to process the parameters in the chosen formula to calculate the amount of blood to be extracted. The processor is arranged to use the result of the calculation to control the collecting system to extract the calculated amount of blood and stop when the scale has detected that the calculated amount has been extracted.
摘要:
A wireless mesh network provides secure communication by encrypting data using one or more encryption keys. A configuration device in communication with a security manager of the network provides a temporary secure communication path between the security manager and a new field device to be added to the mesh network. Cryptographic material and other configuration data can then be transferred between the security manager of the network and the new field device securely via the configuration device.
摘要:
The present invention utilizes operation of a valve actuator to generate electrical power. A portion of the mechanical energy generated by operation of a valve actuator is converted to electrical energy. The mechanical energy may be converted to electrical energy at the same time as the valve actuator is operating or the mechanical energy may be stored for later conversion. A valve actuator may be operated manually, electrically, pneumatically, or hydraulically. Generated electrical energy may also be stored.