An electromagnetic contactor includes a base plate having an aperture hole; an arc extinguishing chamber formed by a fixed terminal support insulating substrate and a cylinder portion; and a bottomed tubular cap in which one end thereof is open. An arc extinguishing chamber connection portion is formed by the arc extinguishing chamber and a first connection member having a flange portion. A cap connection portion is formed by the cap and a second connection member having a tube portion and a flange portion. The flange portion of the first connection member is attached to one surface of the base plate, and the flange portion of the second connection member is attached to the other surface of the base plate, so that the arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole of the base plate.

Claims

4 · 1 independent · depth 2

4 granted claims

›1.independentAn electromagnetic contactor, comprising:na tub-shaped arc extinguishing chamber including a fixed terminal support insulating substrate and a cylinde…+3

Classifications

14 codes

IPC · International Patent Classification

Section H — Electricity

H01H11/04
H01H50/54
H01H69/00
H01H9/30
H01H50/02
H01H9/34
H01H67/02
H01H49/00
H01H33/60
H01H50/60
H01H1/66
H01H33/04

USPC · US Patent Classification

335/201335/131

Claim changes

Soon

Coming soonHow the claims changed between publication and grant

See which claims were amended, added or cancelled during examination, with every added and removed word marked.

AmendedAddedCancelledUnchanged

The published claims of this patent are not paired with the granted ones in what we hold.

File wrapper

Pendency

1.0 y

348 days filing → grant

Office actions

non-final + final

Responses

no RCE

Examiner

Alexander Talpalatski

art unit 2837 · TC 2800

Law firm

Law firm · Log in to unlock

Citations: 30 back · 1 forward

See the full prosecution history — every USPTO and applicant action on this file, in order.

Term & fees

See the term timeline — pendency span, in-force span, the maintenance fees paid and both computed expiry dates.

Priority chain

1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20140104019 A1	17 Apr 2014

Validity challenges

See the validity challenges on record — reexaminations, IPRs and PGRs, with their institution decisions and outcomes.

Citations

See every patent this one cites and every patent that cites it back — publication, assignee, and how each one was found.