Grain bin door board latch
AssigneeCTB, Inc.
InventorRodney B. Grossman
Life of this patent
Estimating the term…
Abstract
A latch apparatus and a cover member for releasably closing an access opening in a grain bin. The latch apparatus includes a continuous bar which has a gripping section for grasping while opening and closing the cover member, a section for engaging a stud which protrudes from the frame around the perimeter of the opening, and a section on which the bar pivots. The pivot section of the bar rotates within a pivot receptacle which is secured to the cover member.
Claims14
A latch apparatus for releasably securing a cover member over an access opening in a bulk storage structure which structurally integrates the cover member into the storage structure for improving the structural integrity of the storage structure, said latching apparatus comprising:
- cover protuberant means projecting from a surface of said bulk storage structure for releasably retainably engaging corresponding cover protuberant means engaging bores formed in an overlying surface of said cover member, said cover member extending between at least two opposed edges of said access opening, said cover protuberant means being releasably retainably engagable with said bores for transferring forces on said access opening through said cover member;
- pivot receptacle means attached to said cover member;
- latch bar means operationally connected to said pivot receptacle means for movement between latching and releasing positions;
- and latch protuberant means mounted to an edge of said access opening for engaging said latch bar means in said latching position to hold said cover member in position.
A latch apparatus for closing an access opening in a bulk storage structure which structurally integrates the cover member into the storage structure for improving the structural integrity of the storage structure, said latching apparatus comprising:
- cover means for extending between opposite sides of said access opening, said cover member having cover protuberant means engaging bores formed therethrough;
- cover protuberant means projecting from an edge of said access opening for engaging said cover protuberant means engaging bores when said cover member is positioned overlying said cover protuberant means and in access opening-covering engagement with said bulk storage structure;
- pivot receptacle means attached to said cover means;
- latch bar means operatively coupled to said pivot receptacle means;
- and latch protuberant means mounted to an edge of said access opening for engaging said latch bar means to hold said cover means in position covering said access opening.
A latching apparatus for releasably securing a cover member to removably close an access opening in a bulk storage structure, said cover member being removably integratable into said storage structure to improve the structural integrity of the storage structure, said latching apparatus comprising:
- cover protuberant means engaging bores formed on an abutting surface of said cover member;
- cover protuberant means attached to said storage structure for releasably engaging said cover protuberant means engaging bores, hinge means attached to said cover member and to said storage structure for hingedly connecting said cover member to said storage structure;
- pivot receptacle means attached to said cover member for pivotally attaching latch bar means to said cover member;
- said latch bar means being operationally attached to said pivot receptacle means for providing a mechanical advantage in closing said cover member over said access opening;
- and latch protuberant means mounted to an edge of said access opening for engaging said latch bar means when closing said cover member over said access opening and for retaining said cover member thereover.
Dependencies are inferred from the claim text.