Gaslighter equipped with a locking means to prevent undesired ignition

• US 4,904,180 A
• Filed: 06/06/1989
• Issued: 02/27/1990
• Est. Priority Date: 06/07/1988
• Status: Expired due to Term

• Current Assignee: Tokai Corporation 2181-7 Enokiyado Kita-Hassaku-Cho Midori-Ku Yokohama Kanagawa-Ken Japan
• Original Assignee: Tokai Corporation
• Inventors: Nitta, Tomio
• Primary Examiner(s): Green, Randall L.
• Application Number:
  US07/362,536
• Time in Patent Office: 266 Days
• Field of Search: 431/153, 431/255, 431/277, 431/267, 431/131, 431/253, 222/153, 222/402.11, 222/384, 251/95, 251/102, 251/105, 251/106, 251/319
• US Class Current: 431/153
• CPC Class Codes: F23Q 2/164 Arrangements for preventing undesired ignition
• CPC Class Codes: F23Q 2/287 piezoelectric

Abstract

Disclosed is a piezoelectric gas lighter equipped with a safety lock means to prevent undesired ignition. It uses a spring-biased stopper to keep the gaslighter locked and cause an automatic return to locked position after use, thereby guaranteeing prevention of any accident which might otherwise be caused if the gaslighter is inadvertently unlocked or if the gaslighter is by chance unlocked while it is being carried.

Claims

1. A gaslighter equipped with a locking means to prevent undesired ignition comprising:

a gaslighter housing having an intervening mount on its top, a windshield fixed to said intervening mount and a flame-striking thumb-pusher adjacent to said windshield; and

a stopper slidably fitted on said flame-striking thumb-pusher, said stopper being spring-biased and urged towards said windshield by rubber, coil spring, leaf spring or any other resilient means until it has been put in locking position in which the forward end of said stopper is directly above said intervening mount, thus causing the forward end of said stopper to be caught by said intervening mount when said flame-striking thumb-pusher is tried to be lowered without pulling back said stopper, thereby preventing the descent of said flame-striking thumb-pusher.

2. A gaslighter equipped with a locking means to prevent undesired ignition claimed in claim 1 wherein said stopper has a U-shape, and said flame-striking thumb-pusher has a leaf spring embedded therein, thereby keeping said stopper urged toward said windshield with the forward end of said stopper right above said intervening mount.