Zam Helmets Inc.

Dr Holdco 2, Inc.

Paxata, Inc.

Whitman Kwok

Michael W Lowe

Dave Brewster

Victor Tze-Yeuan Tso

Michael Matthews

Jing Chen

Nenshad Dinshaw Bardoliwalla

David Stoutamire

Lilia Gutnik

Ian Timourian

Quan Chuong Ta

Lakshman Roy Sankar

Ashley Ping Jin

A helmet may be worn on a head of a wearer having a shape and a contour. The helmet may have a plurality of layers coupled together including an energy management layer and an outer shell layer disposed over the energy management layer. The plurality of layers are integrally formed with one another, and the energy management layer is configured to absorb and dissipate energy received by the helmet during an impact by an external force. The outer shell layer is configured to disperse and dissipate impact energy from the external force. Each of the plurality of layers has a density and a geometry, and the density or geometry of at least one layer differs from the density or geometry of at least another layer.

Protective headgear with integrally-formed layer

A helmet includes a shell, a brim, ridges, and multiple flexible structures. The shell is shaped to receive a user's head. The brim covers the user's forehead and areas above the temples and ears and protrudes from the outer surface of the shell. The ridges are located along the back and top of the helmet and also protrude from the outer surface of the shell. The flexible structures, which are made of a material that is more flexible than the shell, the brim, and the ridges, are positioned in separation gaps between the shell and the brim and ridges. The shell, brim, ridges, and flexible structures are fused together as a single unibody. When the helmet is subjected to an impact on the brim or the ridges, the corresponding flexible structure deforms so that the brim or ridge moves relative to the shell. The deformation of the flexible structure attenuates the force of the impact, which improves the helmet's ability to protect the user from impacts.

Helmet with flexible structure for improved force attenuation

A chin strap assembly comprises a chin cup and a chin strap for mounting the chin cup to a helmet. The chin cup has a first side for contacting a user's chin and a second side opposite the first side, the second side including a first engaging structure. The chin strap has a second engaging structure for coupling the chin strap to the chin cup via the first engaging structure. The first engaging structure is offset on the chin cup and the second engaging structure is offset on the chin strap to provide various positioning options of the chin cup relative to the helmet.

Adjustable chin cup

A helmet includes a helmet body and a clip coupled to the helmet body, for retaining a helmet accessory such as a face cage. The clip comprises a first clip section partly defining an aperture into which a part of the helmet accessory can be received and a second clip section located opposite the first clip section. The second clip section has a first end and a second end, the first end partly defining the aperture into which the part of the helmet accessory can be received, and the second end being coupled to the helmet body. The second clip section further includes a ramped surface that can be depressed to provide access to or from the aperture by the part of the helmet accessory. Also disclosed is a clip for retaining a helmet accessory.

Helmet with face cage push clip

Using a step editor for data preparation includes: receiving an indication of a user input with respect to at least some of a set of sequenced data preparation operations on a set of data; generating, using one or more processors, a signature based at least in part on the set of sequenced data preparation operations, references to the set of data, and the user input; using the generated signature to determine whether there exists a cached result associated with the set of sequenced data preparation operations, the references to the set of data, and the user input; based at least in part on the determination, obtaining a data traversal program representing a result associated with the set of sequenced operations, the references to the set of data, and the user input; and providing output based at least in part on the result represented by the obtained data traversal program.

Step editor for data preparation

Automatic append includes: identifying, based at least in part on contents of a first data set comprising a first plurality of columns and contents of a second data set comprising a second plurality of columns, a plurality of matching columns and a plurality of non-matching columns. The matching columns comprise one or more columns among the first plurality of columns; and corresponding one or more matching columns among the second plurality of columns. The non-matching columns comprise: one or more columns among the first plurality of columns that do not match with any columns among the second plurality of columns; and one or more columns among the second plurality of columns that do not match with any columns among the first plurality of columns. Automatic append further includes obtaining a user specification of a first one or more non-matching columns to be appended to a second one or more non-matching columns, the first one or more non-matching columns and the second one or more non-matching columns being selected among the plurality of non-matching columns; and appending the first data set and the second data set according to at least the identified plurality of matching columns and the user specification.

Automatic content-based append detection

Using a step editor for data preparation includes receiving an indication of a user input with respect to at least some of a set of sequenced data preparation operations on a set of data. It further includes generating, using one or more processors, a signature based at least in part on the set of sequenced data preparation operations, references to the set of data, and the user input. It further includes using the generated signature to determine whether there exists a cached result associated with the set of sequenced data preparation operations, the references to the set of data, and the user input. It further includes based at least in part on the determination, obtaining a data traversal program representing a result associated with the set of sequenced operations, the references to the set of data, and the user input. It further includes providing output based at least in part on the result represented by the obtained data traversal program.

Growing community of inventors

Redwood, CA, United States of America

Whitman Kwok