Abstract: A two wheeled trailer is used to propel a two wheeled vehicle such as a bicycle or a scooter. The trailer is powered by an electric motor and at least one battery. The control of the motor is through a potentiometer attached to the handlebars of the vehicle and in electrical communication with a controller. The trailer is attached to the vehicle by an attachment arm that is mounted near the rear axle of the vehicle. A coupler that allows three axes of rotation attaches the trailer to the vehicle.

Abstract: A radio frequency (RF) isolation test device providing versatility and flexibility, along with RF shielding, in the testing of various types of devices. The RF isolation test device provides for ease of accessibility by having a pivoting handle which locks the test device closed and provides for quickly opening of the test device, also assisted through gas springs.

Abstract: A radio frequency (RF) isolation test device providing versatility and flexibility, along with RF shielding, in the testing of various types of devices. The test device includes a removable plate providing connections for access to a device under test when located within the test device. It also includes a base plate for use in securing a removable nest plate within the test device to accommodate testing of various configurations of devices under test.

Abstract: A customizable nest plate for securely positioning a device to be nested. An alignment device may be used to position nest pins within one version of the nest plate. In another version, several tugboat stop blocks may be adjusted and secured against a nest plate having many threaded apertures in order to secure the device to be nested. In addition, adjustable ramps may be used to adjust the height of a device to be nested above the surface of the nest plate.

Abstract: A radio frequency (RF) isolation test device providing versatility and flexibility, along with RF shielding, in the testing of various types of devices. The test device includes a removable plate providing connections for access to a device under test when located within the test device. It also includes a base plate for use in securing a removable nest plate within the test device to accommodate testing of various configurations of devices under test.

Abstract: A radio frequency (RF) isolation test device providing versatility and flexibility, along with RF shielding, in the testing of various types of devices. The test device includes a removable plate providing connections for access to a device under test when located within the test device. It also includes a base plate for use in securing a removable nest plate within the test device to accommodate testing of various configurations of devices under test.

Abstract: A customizable nest plate for securely positioning a device to be nested. An alignment device may be used to position nest pins within one version of the nest plate. In another version, several tugboat stop blocks may be adjusted and secured against a nest plate having many threaded apertures in order to secure the device to be nested. In addition, adjustable ramps may be used to adjust the height of a device to be nested above the surface of the nest plate.

Abstract: A radio frequency (RF) isolation test device providing versatility and flexibility, along with RF shielding and a low resonance test environment, in the testing of various types of devices. The RF isolation test device includes a “box within a box” configuration. An inner box provides for shielding of a device under test and for reducing interference from reflections from RF energy from the device to provide a low resonance test environment. An outer box provides for primary shielding of the device under test from external RF energy.

Abstract: A two wheeled trailer is used to propel a two wheeled vehicle such as a bicycle or a scooter. The trailer is powered by an electric motor and at least one battery. The control of the motor is through a potentiometer attached to the handlebars of the vehicle and in electrical communication with a controller. The trailer is attached to the vehicle by an attachment arm that is mounted near the rear axle of the vehicle. A coupler that allows three axes of rotation attaches the trailer to the vehicle.

Abstract: A customizable nest plate for securely positioning a device to be nested. An alignment device may be used to position nest pins within one version of the nest plate. In another version, several tugboat stop blocks may be adjusted and secured against a nest plate having many threaded apertures in order to secure the device to be nested. In addition, adjustable ramps may be used to adjust the height of a device to be nested above the surface of the nest plate.

Abstract: A programmable calculator employs modular read-write and read-only memories separately expandable to provide additional program and data storage functions within the calculator oriented toward the environment of the user and two sixteen bit LSI NMOS central processing units. One of the central processing units (LPU) is employed to perform language syntaxing, arithmetic, and general supervision of program execution. The second central processing unit (PPU) is employed for managing input/output operations. Communication between the two central processing units is accomplished by an arrangement through which the two central processing units share a common portion of memory. The calculator also includes a keyboard having a full complement of alphanumeric keys for entering programs and data into the calculator and for otherwise allowing the user to control operation of the calculator.

Abstract: A programmable calculator employs modular read-write and read-only memories separately expandable to provide additional program and data storage functions within the calculator oriented toward the environment of the user and two sixteen bit LSI NMOS central processing units. One of the central processing units (LPU) is employed to perform language syntaxing, arithmetic, and general supervision of program execution. The second central processing unit (PPU) is employed for managing input/output operations. Communication between the two central processing units is accomplished by an arrangement through which the two central processing units share a common portion of memory. The calculator also includes a keyboard having a full complement of alphanumeric keys for entering programs and data into the calculator and for otherwise allowing the user to control operation of the calculator.