Abstract: A light pipe device for fish sonar that displays information such as depth and density of detected objects. The device includes a motor with a rotary shaft, a shaft position sensor, a light conducting pipe fixed to the rotary shaft opposite the luminous tip of the pipe, a light source, and a front panel. Using this device, when a controller detects an object the controller causes the light source to turn on and off as the luminous tip revolves beneath the front panel. Light is transferred to the tip and front panel to indicate information regarding the object.

Abstract: A collapsible user support coupled to a collapsible, walled shelter. One assembly provides a sling chair having a number of frame pieces that are trained through grommets at a fabric seat and backrest fitted to pivot couplers. Armrests are optionally included along with accessory supports and pockets. Pivoting link arms couple to stay or bow pieces of an independently collapsible shelter. The shelter frame pieces mount to pivot couplers and a surrounding multi-panel fabric shelter. The shelter can include windows and/or doors and/or vents with fasteners. The chair and shelter frameworks and fabric shelter are organized to collapse and deploy to several seating conditions ranging from the chair being partially to completely protected from the environment.

Abstract: A modular, submersible video viewing system. The system includes a viewing monitor, camera and interconnecting multi-conductor cable that store at a portable housing and deploy for underwater viewing. Webs at the camera housing interconnect to cable clips, bottom support plates, a swivel coupler or steering guide and/or pole to control camera orientation when towed or during stationary or pole directed viewing. Alternative rudders and/or hydrodynamic ballast weights (with or without a keel) mount to the webs to control camera tracking. A multi-aperture reflection suppressor and etched lens mount to the camera and cooperate with a series of LED's to direct light relative to the viewing field of the camera lens. Various sunshields, lights and/or lenses and filters are optionally mountable to the monitor housing or camera. Alternative monitor housings are disclosed that contain the viewing monitor, battery and attendant control circuitry and camera.

Abstract: A modular submersible video viewing system. The system includes a viewing monitor, multi-conductor cable and camera that store at a portable housing and deploy for underwater viewing. The camera can be submersed for stationary viewing, towed from a watercraft or manipulated with an operator pole. The camera can be secured with clips or bottom support plates in various orientations or be secured to a swivel coupler and steering guide and/or pole. A rudder, ballast weight (with or without a keel), lens' sunshield, lights and/or lenses and filters are optionally mountable to the camera. In one portable assembly, a cable spool mounts to a carry case that stores the system components. In another portable assembly, the viewing monitor, battery and attendant control circuitry are mounted in a monitor housing having an integral sunshield. A handle and a pair of cable wrap arms contain the cable. A recess at the monitor housing supports the camera.