1. Field of the Invention
The present invention relates to a single-piece or multiple-component protective case for handheld devices, such as a personal digital assistant, cellular telephone, lab top computers or portable digital media player, and more particularly relates to protective case for a handheld device having a protective hardened plastic interior layer and a fashionable soft exterior layer.
2. Description of the Related Art
With the advancement of technology in the fields of electronics and computers, more powerful features and elements have been integrated into handheld electronic devices. Compact hard drives, processors, and liquid crystal displays boasting the computational equivalent of desktop computers have been integrated into handheld devices the size of a computer mouse. However, the integration of these innovations into handheld devices has amounted to the production of very expensive and delicate devices. Accessories, in the form of protective cases or protective shells, have been produced to keep the handheld devices safe from unexpected incidents due to mishandling. However, the existing protective cases and protective shells fail to incorporate protective shielding while offering a fashionable, stylish exterior accentuating the individual style of each end user.
In order to protect the handheld devices sufficiently the protective case must incorporate suitable protective cover that encompasses a substantial portion of the device, as well as provide a tight fit in which the device can be secured. In addition the protective case must be adaptable for use with handheld devices that have moving parts associated with the functions of the handheld device. The use of hard plastics to produce protective cases has lead to a sufficiently protective case for the handheld device, but the inherent look and feel of plastic has cheapened the appearance and texture of the expensive, highly advanced handheld devices. Alternatively, the use of textile fabrics, namely, leather and vinyl, have been used to protect the handheld devices, however, these fabrics have been less effective in properly protecting the device. In addition, the use of textile fabrics has been associated with wear and tear over time, leading to diminished protection and unsightly deformities in the protective cover.
The integration of these handheld devices as everyday essential items has opened the pathway for designers to introduce a fashionable design element into each handheld device. Most recently handheld devices have become fashion accessories adopting sleek designs, polished and/or rare metals and even jewels to accentuate the value of the device.
The protective and fashionable solution offered in the industry have failed to realize the importance of these changes, and the transition of once utilitarian handheld devices to fashionable accessories has lead to a demand in the market place for a protective device capable of addressing the recent fashionable element. The current market is in demand of a protective cover that can integrate the functions of protecting the delicate handheld device while retaining or enhancing the aesthetically pleasant look of the handheld device.
The present invention recognizes and addresses the particular need for a protective case for a handheld device capable of sufficiently protecting the handheld device while incorporating an aesthetically pleasing and attractive element to the individual end user.
The present invention provides a novel protective case for handheld devices that incorporates a fashionable element.
More specifically, the invention comprises a protective case made of a hardened plastic inner layer, capable of sufficiently protecting the handheld device. The case further provides an outer layer of a relatively soft material. The soft outer layer incorporates a fashionable element on the soft material.
The protective case is produced by a two step manufacturing process which reduces cost and increases efficiency while incorporating a unique element for adhering the soft outer layer to the hard inner layer. The first step involves the injection molding of the plastic base inner layer which is the protective backbone of the present invention. The plastic inner layer is strong enough to protect the handheld device, while flexible enough to absorb a limited amount of abuse.
The second step of the manufacturing process includes the adhering of the fashionable soft outer layer to the molded plastic inner layer. The outer layer may be in the form of a soft material such as textile, leather, PVC, Nubuck, synthetic fabrics and carbon. The soft outer layer is attached to the plastic inner layer using an adhesive. The edges of the soft outer layer are attached to the plastic inner layer using a special heat process designed to permanently adhere the soft outer layer to the plastic inner layer. The heat processing nearly eliminates the possibility of the soft outer layer detaching or fraying from the plastic inner layer.
The protective case consists of one or more components independently attached to the handheld device, allowing for full operation of all features of the handheld device to be operated while the protective cover remains attached. In the event the handheld device requires the activation of moving pieces for operation, such as a flip-type cellular telephone or a twistable personal digital assistant, the protective case remains attached to the handheld device in operation.
The descriptions which follow are to be understood as illustrative and exemplary of specific structures, aspects and features within the broad scope of the present invention and not as limiting of such broad scope. Like numbers refer to similar features of like elements throughout.
The invention will now be described with reference to
With further reference to
With further reference to
As shown in
With further reference to
As further shown in
As further shown in
While the foregoing detailed description has described a sample embodiment of a protective case 30 in accordance with the present invention, it is to be understood that the above description is illustrative only and not limiting of the disclosed invention. For example, although the embodiment shown in
Indeed, it will be appreciated that the embodiments discussed above and other embodiments that are not mentioned could easily be within the scope and spirit of the present invention.
The present application is a continuation of co-pending U.S. patent application Ser. No. 11/462,032 filed Aug. 2, 2006 entitled Handheld Device Protective Case. The present application claims priority on the basis of the U.S. patent application Ser. No. 11/462,032.
| Number | Name | Date | Kind |
|---|---|---|---|
| 5383091 | Snell | Jan 1995 | A |
| 5542105 | Finch | Jul 1996 | A |
| 5610979 | Yu | Mar 1997 | A |
| 5816459 | Armistead | Oct 1998 | A |
| 5833100 | Kim | Nov 1998 | A |
| 6050465 | Nelson et al. | Apr 2000 | A |
| 6081595 | Picaud | Jun 2000 | A |
| 6130945 | Shin | Oct 2000 | A |
| 6201867 | Koike | Mar 2001 | B1 |
| 6308074 | Chandra et al. | Oct 2001 | B1 |
| 6341217 | Wong | Jan 2002 | B1 |
| 6346824 | Yamada | Feb 2002 | B1 |
| 6430400 | MacDonald, Jr. et al. | Aug 2002 | B1 |
| 6612432 | Motson | Sep 2003 | B2 |
| 6754344 | Kohli et al. | Jun 2004 | B2 |
| 6772879 | Domotor | Aug 2004 | B1 |
| 6785566 | Irizarry | Aug 2004 | B1 |
| 6839432 | Martin | Jan 2005 | B1 |
| 6980777 | Shepherd et al. | Dec 2005 | B2 |
| 7069063 | Halkosaari et al. | Jun 2006 | B2 |
| 7079879 | Sylvester et al. | Jul 2006 | B1 |
| 7099710 | Faillance | Aug 2006 | B1 |
| 7194291 | Peng | Mar 2007 | B2 |
| 7197345 | Kim et al. | Mar 2007 | B2 |
| 20020137475 | Shou et al. | Sep 2002 | A1 |
| 20030003864 | Locke | Jan 2003 | A1 |
| 20030032442 | Kuo | Feb 2003 | A1 |
| 20030068035 | Pirila et al. | Apr 2003 | A1 |
| 20030083094 | Hsu et al. | May 2003 | A1 |
| 20040014506 | Kemppinen | Jan 2004 | A1 |
| 20040097276 | Harmon | May 2004 | A1 |
| 20040166910 | Ha et al. | Aug 2004 | A1 |
| 20040173482 | Nieves | Sep 2004 | A1 |
| 20040204204 | Brilliant et al. | Oct 2004 | A1 |
| 20040218758 | Kohli et al. | Nov 2004 | A1 |
| 20050153757 | Maenpaa et al. | Jul 2005 | A1 |
| 20060100005 | Chen et al. | May 2006 | A1 |
| 20060116183 | Inanti | Jun 2006 | A1 |
| 20060160586 | Cheng | Jul 2006 | A1 |
| 20060172765 | Lev | Aug 2006 | A1 |
| 20060175370 | Arney et al. | Aug 2006 | A1 |
| 20060279924 | Richardson et al. | Dec 2006 | A1 |
| 20070099650 | Brunstrom et al. | May 2007 | A1 |
| 20070201689 | Uramoto et al. | Aug 2007 | A1 |
| Number | Date | Country |
|---|---|---|
| 4023547 | Jan 1992 | JP |
| 10190274 | Jul 1998 | JP |
| 2003234814 | Aug 2003 | JP |
| 20060199909 | Jan 2006 | JP |
| Number | Date | Country | |
|---|---|---|---|
| 20080035253 A1 | Feb 2008 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 11462032 | Aug 2006 | US |
| Child | 11757274 | US |