| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 411326000 | Pawl and ratchet | 7 |
| 20120063864 | Ratchet locking mechanism for threaded fastener - A fastening device including a fastener having a head portion and an elongated threaded body portion extending axially from the head portion. The threaded body portion includes opposing flat sections. A lock washer has a lower surface with an array of radially extending engagement teeth. The lock washer also defines an axial aperture for receiving the fastener. The axial aperture has two flat inner surfaces for cooperating with the two flat sections of the threaded body portion to prevent relative rotation of the washer and threaded body portion. A threaded lock nut mates with the threaded body portion. The lock nut has an upper surface with at least one cantilevered pawl members for ratcheted engagement with the array of radially extending engagement teeth of the lock washer. | 03-15-2012 |
| 20130216328 | ONE WAY SLIP MOUNTING APPARATUS - A mounting apparatus includes a bolt and a nut. The nut includes an inner member having a first engagement feature and a threaded opening, the threaded opening configured to receive the bolt, and an outer member having a second engagement feature. The inner member is axially coupled to the outer member via a snap fit. The inner member is configured to rotationally lock with the outer member through the interaction of the first engagement feature and the second engagement feature via an application of a threshold torque. | 08-22-2013 |
| 20140314515 | Threaded Component Locking Mechanism - A threaded fastening device is provided which utilizes a plurality of retractable pawls ( | 10-23-2014 |
| 411327000 | Pawl carried by the internally threaded element | 3 |
| 20160084291 | Pawl-and-Ratchet Lockable Threaded Fastener Assembly - A fastener assembly includes a fastener, a washer, and a ratchet plate. The washer includes a washer base, and at least one pawl extending from the washer base. The ratchet plate includes a ratchet base and a ratcheted outer profile extending in a circumferential direction around a circumferential periphery of the ratchet base. The ratchet plate is carried by a head of the fastener, and the ratcheted outer profile cooperates with the pawl of the washer. | 03-24-2016 |
| 411328000 | Pivoted pawl | 1 |
| 20140219742 | Components and uses for robust thread clamping device - The present invention relates to a thread clamping device including a plurality of movable nut segments around a threaded rod, and spring members flexibly holding the segments against the rod. The thread clamping device has a structure adapted to accommodate substantially planar outer surfaces of the nut segments engaging planar surfaces of the end housing of the device, leading to a more robust device and improved performance. Such a thread clamping device can advantageously be used as a component of a self-adjusting shrinkage compensation device, a coupler for threaded rods, hold-downs, among other uses. Various embodiments of the thread clamping device include a multi nut configuration, a quick release embodiment, and embodiments including mechanical or magnetic clip attachments. | 08-07-2014 |
| 411329000 | Resilient pawl | 1 |
| 20160131175 | RATCHET LOCKING MECHANISM FOR THREADED FASTENER - A fastening device including a fastener having a head portion and an elongated threaded body portion extending axially from the head portion. The threaded body portion includes opposing flat sections. A lock washer has a lower surface with an array of radially extending engagement teeth. The lock washer also defines an axial aperture for receiving the fastener. The axial aperture has two flat inner surfaces for cooperating with the two flat sections of the threaded body portion to prevent relative rotation of the washer and threaded body portion. A threaded lock nut mates with the threaded body portion. The lock nut has an upper surface with at least one cantilevered pawl members for ratcheted engagement with the array of radially extending engagement teeth of the lock washer. | 05-12-2016 |
| 411330000 | Washer carried pawl | 1 |
| 20140348613 | Nut And/Or Bolt Head With Jackscrew Actuated Lock Washer Stack - A jackscrew nut and/or bolt head assembly includes a load washer that may be selectively engaged via the jackscrews. Spherical faces at the washer top are held in alignment with corresponding spherical jackscrew bottoms via axially interlocking pins. The pins may partially extend radial beyond the circumference of the main body of the nut and/or bolt head thereby defining ridges of an outside tool access profile. The assembly may be initially tightened via a primary torque induced onto the pins and the main body. Final tightening and load setting may be provided via the jackscrews whereby a lock feature of the load washer may be engaged and the assembly secured against inadvertent loosening. The load washer may be part of a lock washer stack including a lock washer. The interface between the lock and load washer may be configured for ratchet locking and/or helical wedge locking of the central thread. | 11-27-2014 |
