Nautical clock apparatus and methods
OwnerBreene M. Kerrinventor
Life of this patent
Estimating the term…
Abstract
Improved nautical clock apparatus and methods are provided. The nautical clock apparatus is basically comprised of a clock base and a tide state indicator attached to the base. Means are attached to the tide state indicator and to the base for causing the indicator to indicate the tide state based on a time of about 12 hours and 25.235 minutes between high tides and a continuous correction to such time which lengthens and shortens such time on a cycle whereby it is longer during one or more portions of each lunar month and shorter during one or more other portions of each lunar month.
Claims9
An improved nautical clock comprising:
- a clock base;
- a tide state indicator attached to said base;
- first means attached to said tide state indicator and to said base for adjusting said tide state indicator to cause said tide state indicator to continuously indicate a time between successive like tide states based on a set time interval therebetween of about 12 hours and 25.235 minutes;
- and
- second means attached to said tide state indicator and to said base for further adjusting said tide state indicator to cause said tide state indicator to continuously indicate a time between successive like tide states that varies on a cycle such that said time is longer than about 12 hours and 25.235 minutes during at least one portion of each lunar month and shorter than about 12 hours and 25.235 minutes during at least one other portion of each lunar month.
In a method of indicating the tide state with a nautical clock having a clock base and a tide state indicator attached to the base that includes the steps of indicating the tide state with the tide state indicator and adjusting the tide state indicator to cause it to continuously indicate the tide state based on a set time interval between successive like tide states of about 12 hours and 25.235 minutes, the improvement comprising further adjusting said tide state indicator to continuously correct the continuous indication of the tide state provided thereby such that said indication is based on:
- (a) said time interval between successive like tide states of about 12 hours and 25.235 minutes, and (b) a continuous correction to said time interval which lengthens and shortens said time interval on a cycle such that said time interval is longer than about 12 hours and 25.235 minutes during at least one portion of each lunar month and shorter than about 12 hours and 25.235 minutes during at least one other portion of each lunar month.
In a nautical clock of the type including a clock base, a tide state indicator attached to the base and means connected to the tide state indicator for causing the tide state indicator to continuously indicate the tide state,in response to a time interval between successive like tide state of about 12 hours and 25.235 minutes, the improvement comprising additional means connected to said tide state indicator for causing said tide state indicator to continuously indicate the tide state in response to both said time interval between successive like tide states of about 12 hours and 25.235 minutes and a continuous correction to said time interval which lengthens and shortens said time interval on a cycle whereby said time interval is longer than about 12 hours and 25.235 minutes during at least one portion of each lunar month and shorter than about 12 hours and 25.235 minutes during at least one other portion of each lunar month.
Dependencies are inferred from the claim text.