Positive handle stop for switches
View Patent ↗The present invention relates generally to handle stops. More particularly, the invention encompasses a positive handle stop for a switch. The positive handle stop for a switch, such as, a safety switch, prevents the handle of a switch from returning to the shipping position once the switch is turned ON. The invention also includes a shipping position for the inventive handle so as to reduce the size of the packaging need to ship the switch apparatus.
1. A handle stop for a switching apparatus including a handle moveable between first and second handle positions, comprising:
(a) at least one handle guard, wherein a first end of said handle guard and a second end of said handle guard are secured to a switching apparatus, and wherein said handle guard has an open area between said first end and said second end wherein said handle is located inside said open area; and
(b) at least one blocking element inside said open area of said handle guard, wherein said blocking element has a first end and a second end, and wherein said first end of said blocking element is secured to an inner portion of said handle guard and said second end of said blocking element has at least one securing means which rests against an inner face of said handle guard in a first position in which said securing means is able to move to a second position wherein said securing means protrudes through a first opening in said handle guard to move said blocking element into a blocking position for blocking movement of said handle from said first handle position to said second handle position and wherein said handle has a first opening and said handle guard has a second opening, wherein at least a portion of said first opening in said handle overlaps at least a portion of said second opening in said handle guard when said handle is moved to a locking position.
2. The handle stop for a switching apparatus of claim 1 , wherein at least one sleeve covers at least a portion of said handle.
3. The handle stop for a switching apparatus of claim wherein at least one sleeve made from an electrically insulating material covers at least a portion of said handle.
4. The handle stop for a switching apparatus of claim 1 , wherein said electrically insulating material is selected from a group consisting of Teflon, nylon, plastic, composite material, and combination thereof.
5. The handle stop for a switching apparatus of claim 1 , wherein said first opening in said handle guard to accommodate said at least one securing means of said-blocking element is selected from a group consisting of trapezoidal opening, square opening, rectangular opening, elliptical opening, triangular opening, and combination thereof.
6. The handle stop for a switching apparatus of claim 1 , wherein said securing means has at least one flexible bent portion.
7. The handle stop for a switching apparatus of claim 1 , wherein said securing means has at least one flexible bent portion which is T-shaped.
8. The handle stop for a switching apparatus of claim 1 , wherein said securing means has at least one flexible bent portion, and wherein material for said flexible bent portion is selected from a group consisting of stainless steel, steel, metallic material, plastic, rubber, composite, and combination thereof.
9. The handle stop for a switching apparatus of claim 1 , wherein said handle is moved to a shipping position, and wherein said shipping position is a position where said handle is below a plane of an enclosure cover for said switching apparatus.
10. The handle stop for a switching apparatus of claim 1 , wherein said handle is moved to a shipping position, and wherein said shipping position is a position where a substantial portion of said handle is below a plane of an enclosure cover for said switching apparatus.
11. A handle stop for a switching apparatus including a handle which is moveable between first and second handle positions, comprising:
a handle guard having first and second ends attached to the switch apparatus wherein the first and second ends form a space for accommodating the handle; and
a first member having first and second member ends wherein the first member end is attached to the handle guard and the second member end includes securing means moveable between a first member position wherein the securing means is not attached to the handle guard when the handle is in the first handle position and a second member position wherein the securing means protrude through an attachment opening in the handle guard and is attached to the handle guard when the handle is in the second handle position to stop movement of the handle from the second handle position to the first handle position and wherein the handle has a first opening and the handle guard has a second opening, wherein at least a portion of the first opening in the handle overlaps at least a portion of the second opening in the handle guard when the handle is moved to a locking position.
12. The handle stop according to claim 11 , wherein the attachment opening is selected from a group consisting of trapezoidal opening, square opening, rectangular opening, elliptical opening, triangular opening, and combination thereof.
13. The handle stop according to claim 11 , wherein the securing means has at least one flexible bent portion.
14. The handle stop according to claim 11 , wherein the securing means has at least one flexible bent portion which is T-shaped.
15. The handle stop according to claim 11 , wherein the securing means has at least one flexible bent portion, and wherein material for the flexible bent portion is selected from a group consisting of stainless steel, steel, metallic material, plastic, rubber, composite, and combination thereof.
16. The handle stop according to claim 11 , wherein the handle is moved to a shipping position, and wherein the shipping position is a position where the handle is below a plane of an enclosure cover for the switching apparatus.
17. The handle stop according to claim 11 , wherein the handle is moved to a shipping position, and wherein the shipping position is a position where a substantial portion of the handle is below a plane of an enclosure cover for the switching apparatus.