Patents by Inventor Stefan Knefel
Stefan Knefel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11420032Abstract: A magazine for accommodating pellets for use in an injector includes a barrel comprising a hollow cylindrical compartment with an open front end and an open rear end. The cross-section of the compartment is selected to accommodate a pellet. The cross section of the rear end is smaller than the accommodated pellet so that it cannot be extracted from the rear end of the compartment. The magazine further includes a cover for closing the front end, including a dispensing opening which, in the closed state, is positioned in front of the front end and has a cross-section selected such that the pellet can pass through the dispensing opening. At least one bar projecting into the dispensing opening prevents the pellet from accidentally falling out, and when subjected to a predetermined force, can be bent outwards such that the pellet can be delivered through the dispensing opening.Type: GrantFiled: March 11, 2016Date of Patent: August 23, 2022Assignee: Henke-Sass, Wolf GmbHInventors: Melanie Eisele, Stefan Knefel
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Patent number: 11166798Abstract: An injector for injecting pellets includes a main body, a delivery opening which is formed on the main body and to which a hollow-bore needle can be connected and a magazine guide formed in the main body for a magazine which, for accommodating the pellets, comprises several barrels. Each barrel includes a hollow cylindrical compartment with an open front end and an open rear end. The magazine guide brings the magazine, barrel by barrel, into an injection position, in which a plunger of the injector can be introduced into the barrel via the rear end of the barrel positioned in the injection position and moved in the direction of the delivery opening in order to deliver the pellet provided in the barrel via the delivery opening. A drawer is formed in the main body for accommodating a replacement hollow-bore needle.Type: GrantFiled: May 14, 2019Date of Patent: November 9, 2021Assignee: Henke-Sass, Wolf GmbHInventors: Melanie Eisele, Stefan Knefel
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Patent number: 10405955Abstract: An injector for injecting pellets includes a main body, a delivery opening which is formed on the main body and to which a hollow-bore needle can be connected and a magazine guide formed in the main body for a magazine which, for accommodating the pellets, comprises several barrels. Each barrel includes a hollow cylindrical compartment with an open front end and an open rear end. The magazine guide brings the magazine, barrel by barrel, into an injection position, in which a plunger of the injector can be introduced into the barrel via the rear end of the barrel positioned in the injection position and moved in the direction of the delivery opening in order to deliver the pellet provided in the barrel via the delivery opening. A drawer is formed in the main body for accommodating a replacement hollow-bore needle.Type: GrantFiled: March 11, 2016Date of Patent: September 10, 2019Assignee: Henke-Sass, Wolf GmbHInventors: Melanie Eisele, Stefan Knefel
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Publication number: 20190262115Abstract: An injector for injecting pellets includes a main body, a delivery opening which is formed on the main body and to which a hollow-bore needle can be connected and a magazine guide formed in the main body for a magazine which, for accommodating the pellets, comprises several barrels. Each barrel includes a hollow cylindrical compartment with an open front end and an open rear end. The magazine guide brings the magazine, barrel by barrel, into an injection position, in which a plunger of the injector can be introduced into the barrel via the rear end of the barrel positioned in the injection position and moved in the direction of the delivery opening in order to deliver the pellet provided in the barrel via the delivery opening. A drawer is formed in the main body for accommodating a replacement hollow-bore needle.Type: ApplicationFiled: May 14, 2019Publication date: August 29, 2019Inventors: Melanie EISELE, Stefan KNEFEL
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Publication number: 20160262861Abstract: An injector for injecting pellets includes a main body, a delivery opening which is formed on the main body and to which a hollow-bore needle can be connected and a magazine guide formed in the main body for a magazine which, for accommodating the pellets, comprises several barrels. Each barrel includes a hollow cylindrical compartment with an open front end and an open rear end. The magazine guide brings the magazine, barrel by barrel, into an injection position, in which a plunger of the injector can be introduced into the barrel via the rear end of the barrel positioned in the injection position and moved in the direction of the delivery opening in order to deliver the pellet provided in the barrel via the delivery opening. A drawer is formed in the main body for accommodating a replacement hollow-bore needle.Type: ApplicationFiled: March 11, 2016Publication date: September 15, 2016Inventors: Melanie EISELE, Stefan KNEFEL
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Publication number: 20160263364Abstract: A magazine for accommodating pellets for use in an injector includes a barrel comprising a hollow cylindrical compartment with an open front end and an open rear end. The cross-section of the compartment is selected to accommodate a pellet. The cross section of the rear end is smaller than the accommodated pellet so that it cannot be extracted from the rear end of the compartment. The magazine further includes a cover for closing the front end, including a dispensing opening which, in the closed state, is positioned in front of the front end and has a cross-section selected such that the pellet can pass through the dispensing opening. At least one bar projecting into the dispensing opening prevents the pellet from accidentally falling out, and when subjected to a predetermined force, can be bent outwards such that the pellet can be delivered through the dispensing opening.Type: ApplicationFiled: March 11, 2016Publication date: September 15, 2016Inventors: Melanie EISELE, Stefan KNEFEL
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Publication number: 20090137966Abstract: A syringe is provided, comprising a syringe body, a plunger rod, which is guided in the syringe body in a longitudinally displaceable manner, and a grip area which includes a finger portion formed on the syringe body and a thumb portion formed at the rear end of the plunger rod, the grip area being at least partially provided with a friction coating which consists of a different material than the grip area.Type: ApplicationFiled: November 21, 2008Publication date: May 28, 2009Applicant: Henke-Sass, Wolf GmbHInventors: Ralf Rueckert, Stefan Knefel
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Patent number: D608886Type: GrantFiled: February 20, 2008Date of Patent: January 26, 2010Assignee: Henke-Sass, Wolf GmbHInventors: Ralf Rueckert, Stefan Knefel
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Patent number: D760382Type: GrantFiled: January 16, 2014Date of Patent: June 28, 2016Assignee: HENKE-SASS, WOLF GMBHInventors: Melanie Eisele, Stefan Knefel
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Patent number: D761953Type: GrantFiled: January 16, 2014Date of Patent: July 19, 2016Assignee: HENKE-SASS, WOLF GMBHInventors: Melanie Eisele, Stefan Knefel