초록 ▼

A bagless canister vacuum cleaner includes a selectively removable dirt cup, and an airstream flows rotationally through the dirt cup between an interior wall of the dirt cup and a filter assembly selectively mounted in the dirt cup so that entrained contaminants are separated from the airstream flo

A bagless canister vacuum cleaner includes a selectively removable dirt cup, and an airstream flows rotationally through the dirt cup between an interior wall of the dirt cup and a filter assembly selectively mounted in the dirt cup so that entrained contaminants are separated from the airstream flowing through the dirt cup and collected by the dirt cup. The filter lies substantially parallel to the support surface on which the vacuum cleaner is supported. A cover member is connected to the main housing, and the cover member is selectively movable to and held in an operative position in covering relation with an open first end of a dirt cup. The main housing defines a base conformed to self-support the main housing on a support surface with the dirt cup arranged with its open first end at a higher elevation than its closed second end. The removable dirt cup includes a handle adapted for being held by a user, and the dirt cup defines or includes a spout to facilitate emptying dirt therefrom.

대표청구항 ▼

A bagless canister vacuum cleaner includes a selectively removable dirt cup, and an airstream flows rotationally through the dirt cup between an interior wall of the dirt cup and a filter assembly selectively mounted in the dirt cup so that entrained contaminants are separated from the airstream flo

A bagless canister vacuum cleaner includes a selectively removable dirt cup, and an airstream flows rotationally through the dirt cup between an interior wall of the dirt cup and a filter assembly selectively mounted in the dirt cup so that entrained contaminants are separated from the airstream flowing through the dirt cup and collected by the dirt cup. The filter lies substantially parallel to the support surface on which the vacuum cleaner is supported. A cover member is connected to the main housing, and the cover member is selectively movable to and held in an operative position in covering relation with an open first end of a dirt cup. The main housing defines a base conformed to self-support the main housing on a support surface with the dirt cup arranged with its open first end at a higher elevation than its closed second end. The removable dirt cup includes a handle adapted for being held by a user, and the dirt cup defines or includes a spout to facilitate emptying dirt therefrom. Orth; US-5800522, 19980900, Campbell et al.; US-5807327, 19980900, Green et al.; US-5824040, 19981000, Cox et al.; US-5824052, 19981000, Khosravi et al.; US-5824053, 19981000, Khosravi et al.; US-5824054, 19981000, Khosravi et al.; US-5824055, 19981000, Spiridigliozzi et al.; US-5843089, 19981200, Sahatjian et al.; US-5849034, 19981200, Schwartz; US-5860998, 19990100, Robinson et al.; US-5873905, 19990200, Plaia et al.; US-5916263, 19990600, Goicoechea et al.; US-5925063, 19990700, Khosravi; US-5928279, 19990700, Shannon et al.; US-5935161, 19990800, Robinson et al.; US-5938696, 19990800, Goicoechea et al.; US-5941908, 19990800, Goldsteen et al.; US-5948017, 19990900, Taheri; US-5948191, 19990900, Solovay; US-5957973, 19990900, Quiachon et al.; US-5957974, 19990900, Thompson et al.; US-5961545, 19991000, Lentz et al.; US-5968069, 19991000, Dusbabek et al., 606/194; US-5993489, 19991100, Lewis et al.; US-6007573, 19991200, Wallace et al.; US-6015429, 20000100, Lau et al.; US-6015430, 20000100, Wall; US-6017362, 20000100, Lau; US-6030407, 20000200, Eidenschink; US-6123723, 20000900, Konya et al., 623/001.11; US-6132457, 20001000, Chobotov; US-6139540, 20001000, Rost et al.; US-6319275, 20011100, Lashinski et al., 606/108; US-6383171, 20020500, Gifford et al., 623/001.13 said shaft of the plunger, able to hook said needle carrier to pull it inside the syringe body, elastic means retained under compression within said syringe body, retaining means operatively connected to said syringe body to retain said elastic means under compression, engagement means operatively connected to said shaft able to cooperate with said retaining means to free said elastic means when said plunger has reached the end of the injection stroke, so that said elastic means can act on said shaft to cause retraction thereof into the retracted position, and locking means operatively connected to said shaft to block forward movement of said shaft, when it is in the retracted position, after the injection has been performed. wherein said needle carrier comprises first engagement means able to engage directly with the fore end of the syringe body or with said supporting body able to be secured to the fore end of the syringe body and second engagement means able to engage with said hooking means. 9. A syringe according to claim 8, characterized in that said first engagement means of said needle carrier are a first pair of opposed tongues and said second engagement means of said needle carrier are a second pair of opposed tongues and said hooking means are an annular ridge protruding radially inward, disposed inside a seat formed at the fore end of said shaft and communicating with the outside. 10. A syringe according to claim 9, characterized in that said supporting body for the needle carrier comprises: an inner housing able to accommodate a cylindrical block of said needle carrier, a rear edge able to be engaged by grooves formed in the outer surface of said first pair o