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US 4,365,831 AGranted
Channel latch
AssigneeHartwell Corporation
InventorWilliam R. Bourne
Life of this patent
Estimating the term…
Abstract
A latching mechanism including an engageable latch bolt and latch trigger each adapted to be pivoted from a first preselected position wherein the latch bolt and latch trigger are engaged to a second predetermined position where the latch bolt and the latch trigger are disengaged such disengagement being accomplished by actuation of a latch trigger actuator which overcomes an actuator biasing means which links the latch bolt and the latch trigger.
Claims10
A latch assembly comprising:
- a latch bolt means adapted for pivotal movement about a fixed latch bolt pivot;
- latch trigger means adapted for pivotal movement and between at least first and second preselected latch trigger means positions, about a fixed latch trigger pivot, said latch trigger means including a latch trigger means engagement means and said latch bolt means including a latch bolt means engagement means for engaging said latch trigger means engagement means, said latch trigger means engagement means adapted for engaging said latch bolt means engagement means when said latch trigger means is at said first latch trigger means predetermined position and for disengaging said latch bolt means engagement means at said second latch trigger means predetermined position;
- a latch actuator assembly including a latch trigger actuator biasing means operatively linking said latch bolt means and said latch trigger means and being anchored at one end to said latch actuator assembly and which urges engagement of said latch bolt means and said latch trigger means;
- a latch trigger means biasing means positioned about said fixed latch trigger pivot for urging said latch trigger means to assume said first latch trigger means predetermined position;
- and
- a reciprocable latch trigger actuator connected to said latch trigger actuator biasing means for opposing the urging of such biasing means and for disengaging said latch bolt means and said latch trigger means upon reciprocation thereof.
3 more elements
A latch assembly comprising:
- a latch bolt means adapted for pivotal movement about a fixed latch bolt pivot;
- latch trigger means adapted for pivotal movement and between at least first and second preselected latch trigger means positions, about a fixed latch trigger pivot, said latch trigger means including a latch trigger means engagement means and said latch bolt means including a latch bolt means engagement means for engaging said latch trigger means engagement means, said latch trigger means engagement means adapted for engaging said latch bolt means engagement means when said latch trigger means is at said first latch trigger means predetermined position and for disengaging said latch bolt means engagement means at said second latch trigger means predetermined position;
- a latch actuator assembly including a latch trigger actuator biasing means operatively linking said latch bolt means and said latch trigger means and being anchored at one end to said latch actuator assembly and which urges engagement of said latch bolt means and said latch trigger means;
- a latch trigger means biasing means positioned about said fixed latch trigger pivot for urging said latch trigger means to assume said first latch trigger means predetermined position;
- and
- a reciprocable latch trigger actuator connected to said latch trigger actuator biasing means for opposing the urging of such biasing means and disengaging said latch bolt means and said latch trigger means wherein the moment of the latch trigger actuator biasing means is at least equal to the ratio of the product of the moment of said latch trigger means biasing means, the surface area of said latch trigger actuator and the distance between the center line of said latch trigger actuator to the center of said latch trigger biasing means anchor to the product of the surface area of said latch trigger means and the distance between the center line of said latch trigger actuator to the center of said latch trigger means pivot.
3 more elements
A latch assembly comprising:
- a latch bolt means adapted for pivotal movement about a fixed latch bolt pivot;
- latch trigger means adapted for pivotal movement and between at least first and second preselected latch trigger means positions, about a fixed latch trigger pivot, said latch trigger means including a latch trigger means engagement means and said latch bolt means including a latch bolt means engagement means for engaging said latch trigger means engagement means, said latch trigger means engagement means adapted for engaging said latch bolt means engagement means when said latch trigger means is at said first latch trigger means predetermined position and for disengaging said latch bolt means engagement means at said second latch trigger means predetermined position;
- a latch actuator assembly including a latch trigger actuator biasing means operatively linking said latch bolt means and said latch trigger means and being anchored at one end to said latch actuator assembly and which urges engagement of said latch bolt means and said latch trigger means;
- a latch trigger means biasing means positioned about said fixed latch trigger pivot for urging said latch trigger means to assume said first latch trigger means predetermined position;
- and
- a reciprocable latch trigger actuator connected to said latch trigger actuator biasing means for opposing the urging of such biasing means and disengaging said latch bolt means and said latch trigger means wherein the moment of the latch trigger actuator biasing means is at least equal to the ratio of the product of the moment of said latch trigger means biasing means, the surface area of said latch trigger actuator and the distance between the center line of said latch trigger actuator to the center of said latch trigger biasing means anchor to the product of the surface area of said latch trigger means and the distance between the center line of said latch trigger actuator to the center of said latch trigger means pivot and wherein the moment of the latch trigger actuator means is at least equal to the ratio of the product of the moment of said latch trigger means biasing means, the mass of said latch trigger actuator and the distance between the center line of said latch trigger actuator to the center of said latch trigger biasing means anchor to the product of the mass of said latch trigger means and the distance between the center line of said latch trigger actuator to the center of said latch trigger means of said pivot.
3 more elements
Dependencies are inferred from the claim text.