Massage Device Having Variable Stroke Length

Patent No. US11857482 (titled "Massage Device Having Variable Stroke Length") was filed by Acp Post Oak Credit I Llc on Feb 25, 2022.

What is this patent about?

’482 is related to the field of medical devices, specifically deep muscle-stimulating devices designed to increase muscle metabolism, improve the lactic acid cycle, and relieve pain. Existing vibrating massage devices often suffer from being bulky, overheating, generating excessive noise, and being difficult to use for extended periods.

The underlying idea behind ’482 is to create a more user-friendly and efficient percussive massager. This is achieved through a combination of features, including a quick-connect system for easily swapping massage heads, a drive mechanism to control the piston's stroke length, and a motor that drives the piston in a reciprocating motion.

The claims of ’482 focus on a percussive massager featuring a housing, a piston with a cylindrical bore at its distal end, a motor to reciprocate the piston, a drive mechanism to control the stroke length, and a quick-connect system that allows massage heads to be attached and detached while the piston is still reciprocating. The method claim focuses on assembling such a massager.

The massager operates by using a motor to drive a piston back and forth. The drive mechanism ensures a controlled stroke length, allowing for targeted massage. The quick-connect system, utilizing a cylindrical bore and potentially magnets, enables users to rapidly change massage heads without interrupting the device's operation. This addresses the need for versatility and ease of use in a massage device.

Unlike prior art devices that may require tools or complex mechanisms to change massage heads, ’482 allows for on-the-fly head swapping. The combination of the quick-connect system and the controlled stroke length provides a more adaptable and efficient massage experience. The design also considers the placement of the motor and handle relative to the piston's longitudinal axis, potentially contributing to improved ergonomics and balance.

How does this patent fit in bigger picture?

Technical landscape at the time

In the early 2010s when ’482 was filed, at a time when vibrating massage devices were available, many were bulky, got very hot, were noisy and/or were difficult to use for extended periods of time. At that time, deep muscle-stimulating devices were used to increase muscle metabolism, increase the lactic acid cycle and relieve pain.

Novelty and Inventive Step

The examiner approved the application because the prior art, whether considered individually or in combination, did not fully disclose all the structural and functional aspects described in the claims. Specifically, the prior art did not disclose a percussive massager with a housing, a piston having a proximal and distal end with a substantially cylindrical bore, a motor, a drive mechanism, and a quick-connect system configured to secure a massaging head by sliding it into the bore while the piston reciprocates at a predetermined stroke length. Also, the prior art did not disclose a quick release connector with a bore having a substantially cylindrical structure, configured to secure a first massaging head by sliding the first massaging head into the bore while the piston reciprocates the predetermined stroke length at the first speed. Finally, the prior art did not disclose a quick release connector configured to secure a first massaging head while the piston reciprocates a predetermined stroke length at the first speed, wherein the first massaging head has a substantially cylindrical pocket to receive the quick release connector.

Claims

This patent contains 61 claims, with independent claims numbered 1, 32, and 34. The independent claims are directed to a percussive massager and a method of assembling it, focusing on the device's structure, including a motor, piston, drive mechanism, and a quick-connect system for massaging heads. The dependent claims generally elaborate on and add detail to the features described in the independent claims, such as speed control, control panels, data connections, and specific mechanical configurations.

Key Claim Terms New

Definitions of key terms used in the patent claims.

Term (Source)Support for SpecificationInterpretation
Drive mechanism
(Claim 1, Claim 32, Claim 34)
“Another exemplary embodiment of a massaging device includes a handle, a piston, a massaging head attached to the piston, a motor, a drive mechanism for converting rotary motion of the motor to linear motion to drive the piston back and forth in a reciprocating motion, a processor, memory, a data connection in circuit communication with the processor and logic for transmitting data between the massaging device and a remote device.”A component that converts the rotary motion of the motor into reciprocating motion of the piston.
First massaging head
(Claim 1, Claim 32, Claim 34)
“In yet another exemplary embodiment, a massaging device includes a handle, a piston, a quick-connection mechanism and one or more massaging heads releasably connectable to the piston by the quick-connection mechanism. The massaging device further includes a motor and a drive mechanism for moving the piston.”One of potentially multiple interchangeable massaging heads that can be attached to the piston.
Percussive massager
(Claim 1, Claim 32, Claim 34)
“Exemplary embodiments of massaging devices are disclosed herein. One exemplary embodiment includes a piston having a longitudinal axis and a massaging head connected to the piston. A motor is located on a first side of the longitudinal axis and a handle is located on a second side of the longitudinal axis. A drive mechanism for moving the piston and massage head is also included.”A massaging device that uses reciprocating motion to deliver a percussive force.
Predetermined stroke length
(Claim 1, Claim 32, Claim 34)
“Another exemplary embodiment of a massaging device includes a handle, a piston, a massaging head attached to the piston, a motor, a drive mechanism for converting rotary motion of the motor to linear motion to drive the piston back and forth in a reciprocating motion, a processor, memory, a data connection in circuit communication with the processor and logic for transmitting data between the massaging device and a remote device.”The distance the piston travels back and forth in a reciprocating motion, controlled by the drive mechanism.
Quick-connect system
(Claim 1)
“In yet another exemplary embodiment, a massaging device includes a handle, a piston, a quick-connection mechanism and one or more massaging heads releasably connectable to the piston by the quick-connection mechanism. The massaging device further includes a motor and a drive mechanism for moving the piston.”A mechanism located at the distal end of the piston that allows for the releasable connection of massaging heads.

Litigation Cases New

US Latest litigation cases involving this patent.

Case NumberFiling DateTitle
3:25-cv-01074Sep 12, 2025Hyper Ice, Inc. v. Namirsa, Inc.
8:25-cv-00452Mar 7, 2025Qianlin-Beoka Medical Technology Inc. v. Hyper Ice Inc. et al
8:25-cv-00429Mar 5, 2025Wuyi Zhongyu Jinshu Zhiping Co., Ltd. et al v. Hyper Ice, Inc. et al
1:24-cv-03311Apr 24, 2024Hyper Ice, Inc. V. Meijer Inc
1:24-cv-03304Apr 24, 2024Hyper Ice, Inc. V. Performance Health Systems, Llc

Patent Family

Patent Family

File Wrapper

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

  • Date

    Description

  • Get instant alerts for new documents

US11857482

ACP POST OAK CREDIT I LLC
Application Number
US17681367
Filing Date
Feb 25, 2022
Status
Granted
Expiry Date
Jun 27, 2034
External Links
Slate, USPTO, Google Patents