Abstract: A personal observatory structure includes a base having an open top, and a hemispherical dome having a center point. The dome is shaped to be mounted on the base and to selectively enclose the open top. The hemispherical dome includes a first dome segment and a second dome segment pivotally connected to the first dome segment. The second dome segment has an outer radius smaller than the inner radius of the first dome segment. The first dome segment and second dome segment are connected together by pivotal connectors for movement about a pivot axis. One of the domes can be pivoted from a lowered position, in which the dome segments together enclose the open top of the base, to a raised position which exposes the interior and nests one dome segment within the other. The pivot axis may be a horizontal pivot axis that extends through the center point, and the dome segments may be shaped generally in the form of a quarter sphere.

Abstract: A retractable mooring line device comprising a reel for storing and paying off a mooring line, having side walls each comprising a series of notches for receiving a releasable latch. A latch simultaneously engages between notches in both side walls at a substantially right angle to provide a secure, positive locking engagement between the latch and the reel while permitting the latch to be released under the application of relatively little force. In the preferred embodiment the latch may be actuated by a user's hand or foot and is biased toward the reel by a spring which bears against the housing. The mechanism can be exposed for maintenance or repair simply by removal of the gunnel plate and reinstallation of the gunnel plate does not require special loading of the latch spring.

Abstract: A retractable mooring line device comprising a reel for storing and paying off a mooring line, having side walls each comprising a series of notches for receiving a releasable latch. A latch simultaneously engages between notches in both side walls at a substantially right angle to provide a secure, positive locking engagement between the latch and the reel while permitting the latch to be released under the application of relatively little force. In the preferred embodiment the latch may be actuated by a user's hand or foot and is biased toward the reel by a spring which bears against the housing. The mechanism can be exposed for maintenance or repair simply by removal of the gunnel plate and reinstallation of the gunnel plate does not require special loading of the latch spring.

Abstract: A retractable mooring line device comprising a reel for storing and paying off a mooring line (2), having side walls (22, 24) each comprising a series of notches (60) for receiving a releasable latch (54). A latch simultaneously engages between notches in both side walls (22, 24) at a substantially right angle to provide a secure, positive locking engagement between the latch and the reel while permitting the latch (54) to be released under the application of relatively little force. In the preferred embodiment the latch may be actuated by a user's hand or foot and is biased toward the reel by a spring (70) which bears against the housing (18). The mechanism can be exposed for maintenance or repair simply by removal of the gunnel plate (16) and reinstallation of the gunnel plate does not require special loading of the latch spring.

Abstract: A personal observatory structure including a base having an open top, and a hemispherical dome having a center point, the dome being shaped to be mounted on the base and to selectively enclose the open top. The hemispherical dome includes a first dome segment and a second dome segment pivotally connected to the first dome segment. The second dome segment has an outer radius smaller than the inner radius of the first dome segment. The first dome segment at second dome segment are connected together by pivotal connectors for movement about a pivot axis. One of the domes can be pivoted from a lowered position, in which the dome segments together enclose the open top of the base, to a raised position which exposes the interior and nests one dome segment within the other. The pivot axis may be a horizontal pivot axis that extends through the center point, and the dome segments may be shaped generally in the form of a quarter sphere.

Abstract: A retractable mooring line device comprising a reel for storing and paying off a mooring line (2), having side walls (22, 24) each comprising a series of notches (60) for receiving a releasable latch (54). A latch simultaneously engages between notches in both side walls (22, 24) at a substantially right angle to provide a secure, positive locking engagement between the latch and the reel while permitting the latch (54) to be released under the application of relatively little force. In the preferred embodiment the latch may be actuated by a user's hand or foot and is biased toward the reel by a spring (70) which bears against the housing (18). The mechanism can be exposed for maintenance or repair simply by removal of the gunnel plate (16) and reinstallation of the gunnel plate does not require special loading of the latch spring.