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US 8,507,817 B2Granted
Latch assembly and electrical switching apparatus including the same
AssigneeEaton Corporation
InventorsAndrew L. Gottschalk, Roger W. Helms, David A. Parks, Robert M. Slepian
Life of this patent
Estimating the term…
Abstract
A latch assembly includes a latch plate having an opening therethrough; and a latch shaft having a shaft member and a positioning shoulder disposed on the shaft member. The positioning shoulder has a seating surface thereon. The shaft member passes through the opening of the latch plate. The latch plate engages the positioning shoulder of the shaft member. The seating surface of the shaft member is swaged to retain the latch plate to the shaft member.
Claims24
A latch assembly comprising:
- a latch plate having an opening therethrough;
- and
- a latch shaft comprising a shaft member and a positioning shoulder disposed on said shaft member, said positioning shoulder having a seating surface thereon,
- wherein said latch shaft, the shaft member, the positioning shoulder and the seating surface are a single unitary piece of material,
- wherein said shaft member passes through the opening of said latch plate,
- wherein said latch plate engages the positioning shoulder of said shaft member, and
- wherein the seating surface of said shaft member is swaged to retain said latch plate to said shaft member.
4 more elements
An electrical switching apparatus comprising:
- separable contacts;
- an operating mechanism structured to open and close said separable contacts;
- and
- a latch comprising:
- a D-shaft,
- a latch plate having an opening therethrough, said latch plate having a portion structured to engage said D-shaft, and
- a latch shaft comprising a shaft member and a positioning shoulder disposed on said shaft member, said positioning shoulder having a seating surface thereon,
- wherein said latch shaft, the shaft member, the positioning shoulder and the seating surface are a single unitary piece of material,
- wherein said shaft member passes through the opening of said latch plate,
- wherein said latch plate engages the positioning shoulder of said shaft member, and
- wherein the seating surface of said shaft member is swaged to retain said latch plate to said shaft member.
8 more elements
A latch comprising:
- a D-shaft;
- a latch plate having an opening therethrough, said latch plate having a portion structured to engage said D-shaft;
- and
- a latch shaft comprising a shaft member and a positioning shoulder disposed on said shaft member, said positioning shoulder having a seating surface thereon,
- wherein said latch shaft, the shaft member, the positioning shoulder and the seating surface are a single unitary piece of material,
- wherein said shaft member passes through the opening of said latch plate,
- wherein said latch plate engages the positioning shoulder of said shaft member, and
- wherein the seating surface of said shaft member is swaged to retain said latch plate to said shaft member.
5 more elements
Dependencies are inferred from the claim text.