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US5215447A Expired / Lapsed US ⏱️ 0.0 years remaining

Mini-type air compressor

Assignee: Individual
•
Filing: 1992-06-26
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Granted: 1993-06-01
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Expires: 2012-06-26
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Abstract

Abstract This invention relates to a mini-type air compressor and in particular to one which includes a motor having a driving axle connected with a driving gear, a fixed seat on which is fixedly mounted the motor, a transmission gear having an enlarged threaded portion and meshed with the driving gear of the motor, a cylinder mounted on the fixed seat, an eccentric member provided with a shaft extending through the transmission gear to engage with the fixed seat so that one side of the eccentric member is spaced apart from the enlarged threaded portion of the transmission gear and the transmission gear must rotate through a certain distance before that side contacts and pushes the eccentric member to rotate, and a spring mounted between the transmission gear and the eccentric member for pushing the eccentric gear to contact another side of the enlarged threaded portion of the transmission gear.

Inventors

  • 👤 San-Jou Wen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 09:48
CPC Classifications
F; F04; F04B; F04B35/00; F04B35/04; F04B9/00; F04B9/02; F04B9/06

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 154 words
A mini-type air compressor: a motor having a driving axle connected with a driving gear; a fixed seat on which is fixedly mounted said motor; a transmission gear having an enlarged threaded portion and meshed with the driving gear of said motor; a cylinder mounted on said fixed seat; an eccentric member provided with a shaft extending through said transmission gear to engage with said fixed seat so that one side of said eccentric member is spaced apart from the enlarged threaded portion of said transmission gear and said transmission gear must rotate through a certain distance before said side contacts and pushes said eccentric member to rotate, said eccentric member being connected via a linking rod with a piston disposed within said cylinder; and a spring mounted between said transmission gear and said eccentric member for pushing said eccentric gear to contact another side of the enlarged threaded portion of said transmission gear.
Claim 2
Dependent Claim 154 words
A mini-type air compressor: a motor having a driving axle connected with a driving gear; a fixed seat on which is fixedly mounted said motor; a transmission gear having an enlarged threaded portion and meshed with the driving gear of said motor; a cylinder mounted on said fixed seat; an eccentric member provided with a shaft extending through said transmission gear to engage with said fixed seat so that one side of said eccentric member is spaced apart from the enlarged threaded portion of said transmission gear and said transmission gear must rotate through a certain distance before said side contacts and pushes said eccentric member to rotate, said eccentric member being connected via a linking rod with a piston disposed within said cylinder; and a spring mounted between said transmission gear and said eccentric member for pushing said eccentric gear to contact another side of the enlarged threaded portion of said transmission gear.

References Cited (Backward Citations)

US3347451A Cited
US3484822A Cited
US3518031A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1996-05-31 1996-11-30 1997-06-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2000-05-31 2000-11-30 2001-06-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2004-05-31 2004-11-30 2005-06-01 $7700.00 Window Closed / Lapsed

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