Bolt assembly and bolt carrier assembly with switch mechanism for discharging spent casing from either side of firearm receiver without need of disassembling the firearm

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8745911
SERIAL NO

13658700

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A bolt assembly comprises: a bolt front half piece having an extractor slot through which the spent casing is ejected; a bolt rear half piece; an elastic body; and a bolt interlock received in the bolt rear half piece and movable longitudinally with respect to the bolt rear half piece. The elastic body is disposed between the bolt interlock and the bolt rear half piece when the bolt front half piece and the bolt rear half piece are mated together. When the bolt interlock is in a first position, the bolt front half piece is interlocked axially with respect to the bolt rear half piece with the extractor slot pointing in a first direction. When the bolt interlock is in a second position, the bolt front half piece is rotatable axially with respect to the bolt rear half piece so that the extractor slot can point in a second direction.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
ZHENG JING21035 HAMBURG

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Zheng, Jing Hamburg, DE 73 849

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 10, 2025
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00