公开(公告)号：US20220128328A1

公开(公告)日：2022-04-28

申请号：US17568660

申请日：2022-01-04

申请人： Chi-Chang Liu

发明人： Chi-Chang Liu

IPC分类号： F41B5/12

摘要： A crossbow includes a magazine mounted to the top of the barrel of the crossbow and located above the flight groove of the crossbow. A storage space is formed through the magazine so as to accommodate multiple arrows therein. A retainer is located in the storage space, and resiliently normally presses the arrows in the storage space so that the users shoots the arrows one by one. The retainer is a resilient and an elongate part, an elongate plate cooperated with a spring, or a block cooperated with multiple springs. The retainer can be pulled or pivoted upward to allow the arrows to be fed into the storage space.

公开(公告)号：US20220128327A1

公开(公告)日：2022-04-28

申请号：US17377383

申请日：2021-07-16

申请人： Chi-Chang Liu

发明人： Chi-Chang Liu

IPC分类号： F41B5/12

摘要： A crossbow includes a barrel having a flight section and a head. The head includes a main part and two extensions extending laterally from the main part. The main part is detachably connected to the flight section. Two cam units each include two first limb connected to the two extensions, and two cams. Two second limbs each are a curved limb and have a first end and a second end. The two first ends of the two second limbs are respectively and directly connected to two sides of the flight section or the head. A first string is wrapped around and connected between the two cams. Two second strings are connected between the cams and the second end of the second limbs. The weight center of the crossbow is located close to the user's body and is benefit for operating the crossbow with high balance and accuracy.

公开(公告)号：US11274897B2

公开(公告)日：2022-03-15

申请号：US16550186

申请日：2019-08-24

申请人： Philip S. Liu ,  Chi-Chang Liu

发明人： Philip S. Liu ,  Chi-Chang Liu

IPC分类号： F41A33/02 ,  F41A31/02

摘要： A simulation laser training cartridge for dry-firing practice adapts to the wear condition of a given firearm and provides a convenient way of measuring the barrel erosion. The cartridge uses multiple adjustable interfacing parts that can be applied selectively and independently according to the condition of the barrel to ensure a snug fit in 3-dimensions. In a 2-unit kit embodiment of the invention, the muzzle unit can work with multiple chamber units for a multi-chamber firearm. The cartridge also includes internal modules for laser property management, status monitoring, movement tracking, memory, and communication to help a user manage the device and allow for advanced training applications. By changing the laser property, the laser training cartridge can work as a bore sight. The cartridge may further include a means to attach an external part, so the external part comprises a means to distinguish a longitudinal position inside said barrel.

公开(公告)号：US11193727B1

公开(公告)日：2021-12-07

申请号：US17103886

申请日：2020-11-24

申请人： Chi-Chang Liu

发明人： Chi-Chang Liu

IPC分类号： F41B5/12 ,  F41B5/00

摘要： A crossbow includes a barrel with a flight groove, and a bow. A magazine is mounted to the body and located above the flight groove. A passage is defined through the magazine for accommodating multiple arrows therein. A slot is formed between the magazine and the flight groove. A string of the bow movably extends through the slot. An arm is pivotably located in the passage and includes a hook end which normally presses on a top-most arrow of the arrows in the magazine. When no arrow is in the magazine, the hook end is inserted into the slot and the user cannot successfully cock the string because the string is stopped by the hook end, so that the user is acknowledged that there is no arrow in the magazine.

公开(公告)号：US20210048270A1

公开(公告)日：2021-02-18

申请号：US16935197

申请日：2020-07-22

申请人： Chi-Chang Liu

发明人： Chi-Chang Liu

IPC分类号： F41B5/14

摘要： A crossbow includes a body, a grip portion, an aim device rack, a stock connected to the rear end of the body, and two support devices connected to two sides of the front end of the body. Each support device includes a first block and a second block. The first block is fixed to the body. The second block is pivotably connected to the first block. Two plates are connected to the second block. Each plate includes a curved slot. Two bolts movably extend through the two curved slots and the first block so that the second blocks are pivotable relative to the first blocks. Each second block includes an inclined face including a low end is located corresponding to the aim device rack, and a high end located corresponding to the grip portion. The crossbow is positioned between a first position and a second position with a weight balance.

公开(公告)号：US20210048269A1

公开(公告)日：2021-02-18

申请号：US16541178

申请日：2019-08-15

申请人： Chi-Chang Liu

发明人： Chi-Chang Liu

IPC分类号： F41B5/14

摘要： A crossbow includes a body, a grip portion, an aim device rack, a stock connected to the rear end of the body, and two support devices connected to two sides of the front end of the body. Each support device includes an inclined face including a low end is located corresponding to the aim device rack, and a high end located corresponding to the grip portion. The crossbow can be positioned between a first position where the two respective high ends contact the ground and an angle is formed between the inclined face of each support device and the ground, and a second position where both of the high end and the low end of each of the two inclined faces contact the ground. When the body changes from the first position to the second position, the grip portion and the aim device rack reach a weight balance.

公开(公告)号：US10663249B1

公开(公告)日：2020-05-26

申请号：US16248701

申请日：2019-01-15

申请人： Chi-Chang Liu

发明人： Chi-Chang Liu

IPC分类号： F41B5/12

摘要： A crossbow includes a barrel, a cocking device, a bow device, a link device and a cartridge. The retention member is moved by the operation of the string of the bow device. The cocking device detachably holds the string. By repeatedly operating the link device and pulling the trigger, the cocking device is moved back and forth repeatedly, and the retention member moves back and forth to control the restriction member to pivot so that the bullets continuously drop to the groove and located in front of the retention member. Therefore, the crossbow can shoot the bullets continuously. The bullets are allowed to be fed into the cartridge one time of feeding.

公开(公告)号：USPP31580P3

公开(公告)日：2020-03-24

申请号：US15998360

申请日：2018-08-08

申请人： Peggy Pai-Chi Chang

发明人： Peggy Pai-Chi Chang

IPC分类号： A01H5/08 ,  A01H6/74

摘要： ‘American Aroma 10’ is a new and distinct short-day cultivar of strawberry plant, which produces large, sweet and firm fruits with glossy red color. The new cultivar has a healthy plant with large, firm fruit similar to ‘Treasure Harvest’ (U.S. Plant Pat. No. 19,422) but is sweeter in flavor like ‘Treasure’ (U.S. Plant Pat. No. 12,414). ‘American Aroma 10’ is resistant to strawberry anthracnose fruit rot which is an improvement from ‘Treasure’ which is a good characteristic for organic growers. ‘American Aroma 10’ has high yield but is not as early as ‘Treasure’ when produced in central and south Florida. Because of its good fruit quality, firmness, long shell life and healthiness ‘American Aroma 10’ is recommended for fresh market in the Southeastern United States, especially for organic growers.

公开(公告)号：US10378853B1

公开(公告)日：2019-08-13

申请号：US16197378

申请日：2018-11-21

申请人： Chi-Chang Liu

发明人： Chi-Chang Liu

IPC分类号： F41B5/12 ,  F41B5/14

摘要： A crossbow includes a barrel, a retention unit, a link unit and a positioning unit. When the second link pivots toward the restriction member, the rod is moved with the slot of the restriction member, and the restriction member is pivoted relative to the second link. The pivotal action of the first link drives the retention unit to move in the arrow track and toward the bow. On the contrary, when the retention unit is connected to the bow, the second link is moved to its initial position, and the rod is engaged with the serrated portion to form a stand-by status. When the second link continuously pivots to disengage the rod from the serrated portion, the second link is engaged with the handle to form a completion status. During the cocking action, the users may have multiple stages of action to cock the crossbow.

公开(公告)号：US20180318619A1

公开(公告)日：2018-11-08

申请号：US15587665

申请日：2017-05-05

申请人： Kuo-Chi CHANG

发明人： Kuo-Chi CHANG ,  Hsiao-Chuan WANG ,  Kai-Chun CHU ,  Tsui-Lien HSU

IPC分类号： A62C13/76 ,  A62C13/62

CPC分类号： A62C13/76 ,  A62C37/50 ,  H04W84/10

摘要： An extinguisher management system includes a fire extinguisher, a management server and a maintenance server. The fire extinguisher transmits a notification signal when a measured pressure thereof is beyond a predetermined pressure range. The management server includes a wireless receiver for receiving the notification signal from the fire extinguisher, and a database storing an apparatus data set corresponding to the fire extinguisher. The management server outputs an apparatus information in the apparatus data set in response to receipt of the notification signal. The maintenance server is configured to update a to-be-maintained list according to the apparatus information received from the management server.