Abstract: A clip holder for supporting sports accessories such as gloves, and towels, for being attached to pockets and belts, for different types of sports such as but not limited to racquetball, handball, baseball, bowling, bicycling, football, and the like. The clip holder is compact with two plate like portions substantially parallel and adjacent to one another, with interior facing ridge and groove for allowing the clip holder to grip about pocket edges, belts and straps. The clip holder plates can have concave lower edges which face away from one another. A removable golf tool such as a tack shaped ball marker can attach to an exterior side of one of the plates. A built on tool such as a fork shaped divot repair tool can be fixably attached to or be part of one of the edges of the first and the second plates, and can be used with or without the removable golf tool.

Abstract: A device for isolating dryer exhaust lines. The device can be attached between a dryer exhaust and an exterior dryer vent. The device has a door that slides between an upper position allowing the air passage duct between the dryer exhaust and the exterior vent to be open and a closed position which closes the air passage duct. A rod slidable within eye type slits has a handle at one end and is attached to the sliding door at the opposite end. A user can push the rod downward which slides the door to close the air passage duct. Lifting the handle pulls the rod up which causes the door to slide up opening the air passage duct. An electrical safety disconnect switch can disconnect power to the dryer when the door is in a closed position. The safety switch can be turned off allowing the dryer to be powered when the door is in the open position. A whistle can further operate in the device which can turn on when pressure builds up if the dryer is turned on and the door is still in the closed position.

Abstract: A device for isolating dryer exhaust lines. The device can be attached between a dryer exhaust and an exterior dryer vent. The device has a door that slides between an upper position allowing the air passage duct between the dryer exhaust and the exterior vent to be open and a closed position which closes the air passage duct. A rod slidable within eye type slits has a handle at one end and is attached to the sliding door at the opposite end. A user can push the rod downward which slides the door to close the air passage duct. Lifting the handle pulls the rod up which causes the door to slide up opening the air passage duct. An electrical safety disconnect switch can disconnect power to the dryer when the door is in a closed position. The safety switch can be turned off allowing the dryer to be powered when the door is in the open position. A whistle can further operate in the device which can turn on when pressure builds up if the dryer is turned on and the door is still in the closed position.

Abstract: An addressed transmission line test system having bidirectional input and output lines with through connections in a quiescent state which is capable of recognizing properly addressed signals at either direction input for breaking the through connections and for allowing responses to commands sent from either direction for controlling the application of signals to the other direction.

Abstract: There are disclosed instruments and methods for facilitating the measurement of characteristics of only a selected portion of a transmission channel. In my copending application Ser. No. 661,106, an apparatus located at the remote end of a channel of interest amplifies the received disturbance component relative to the received test tone, and forwards the resulting processed signal over a second channel to a test site. In this manner, the disturbance signal received by the test instrument represents the disturbance signal received at the remote end of the channel of interest, the disturbance introduced by the second channel being insignificant relative to the amplified disturbance component. In accordance with the present invention, an apparatus at the test site attenuates the received disturbance relative to the test tone by the same factor that it is amplified at the remote end of the first channel.

Abstract: There is disclosed a telephone line characteristic measuring instrument of the type described in U.S. Pat. No. 3,814,868, provided with an oscilloscope display. A signal representing the impairments induced on a test tone by a tele-communication transmission facility, without the test tone itself, is applied to the vertical deflection plates of an oscilloscope. The test tone, or one of its harmonics, is applied to the horizontal deflection plates. The resulting Lissajous patterns identify the source of a disturbance (e.g., amplitude modulation, phase modulation, white noise, etc.).

Abstract: There are disclosed instruments and methods for measuring envelope delay in a transmission channel which entail the simultaneous transmission over the channel of both a modulated reference tone and a modulated variable test tone. Unlike the prior art, in which the transmissions of the reference tone and the test tone take place alternately on the channel of interest, or in which the reference tone is transmitted over a separate channel, in accordance with the invention there is no need either to employ a second channel or to switch back and forth between tone transmissions. At the receiving end, the modulation signal on each tone is detected. The two modulation signals are the same at the transmitting end, and their phases are compared at the receiving end to determine the envelope delay of the channel.

Abstract: There are disclosed instruments and methods for measuring the characteristics of only a selected portion of an overall transmission channel. A test tone is transmitted from a test site to a remote facility over a path to be tested, and the received signal is transmitted back to the test site over a return path. Under ordinary circumstances, it is not possible to distinguish at the test site between the distortions which arose during the forward and return transmissions. In accordance with the invention, apparatus is inserted at the remote facility which amplifies the received noise relative to the test tone. Although additional noise is introduced in the return path, it is usually insignificant relative to the amplified forward-path noise.

Abstract: There is disclosed an improved display, of the type described in my co-pending application Ser. No. 455,197 now Pat. No. 3,906,173 issued on Sept. 16, 1975, for use with a telephone line characteristic measuring instrument. A signal representing the instantaneous in-phase component of the total disturbance on a received test tone is applied to one set of deflection plates of a storage oscilloscope, and a signal representing the instantaneous quadrature component of the total disturbance on the received test tone is applied to the orthogonal deflection plates. The display is formed only in response to the detection of a disturbance. By detecting a disturbance and maintaining a display of it, the display can be studied at length.